diff --git a/pkg/detectors/openvpn/openvpn.go b/pkg/detectors/openvpn/openvpn.go new file mode 100644 index 000000000000..7a16304b21d4 --- /dev/null +++ b/pkg/detectors/openvpn/openvpn.go @@ -0,0 +1,109 @@ +package openvpn + +import ( + "context" + b64 "encoding/base64" + "fmt" + "net/http" + "regexp" + "strings" + + "github.com/trufflesecurity/trufflehog/v3/pkg/common" + "github.com/trufflesecurity/trufflehog/v3/pkg/detectors" + "github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb" +) + +type Scanner struct { + client *http.Client +} + +// Ensure the Scanner satisfies the interface at compile time. +var _ detectors.Detector = (*Scanner)(nil) + +var ( + defaultClient = common.SaneHttpClient() + + clientIDPat = regexp.MustCompile(detectors.PrefixRegex([]string{"openvpn"}) + `\b([A-Za-z0-9-]{3,40}\.[A-Za-z0-9-]{3,40})\b`) + clientSecretPat = regexp.MustCompile(`\b([a-zA-Z0-9_-]{64,})\b`) + domainPat = regexp.MustCompile(`\b(https?://[A-Za-z0-9-]+\.api\.openvpn\.com)\b`) + +) + +// Keywords are used for efficiently pre-filtering chunks. +// Use identifiers in the secret preferably, or the provider name. +func (s Scanner) Keywords() []string { + return []string{"openvpn"} +} + +// FromData will find and optionally verify Openvpn secrets in a given set of bytes. +func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) { + dataStr := string(data) + + domainMatches := domainPat.FindAllStringSubmatch(dataStr, -1) + clientIdMatches := clientIDPat.FindAllStringSubmatch(dataStr, -1) + clientSecretMatches := clientSecretPat.FindAllStringSubmatch(dataStr, -1) + + for _, clientIdMatch := range clientIdMatches { + clientIDRes := strings.TrimSpace(clientIdMatch[1]) + for _, clientSecretMatch := range clientSecretMatches { + clientSecretRes := strings.TrimSpace(clientSecretMatch[1]) + for _, domainMatch := range domainMatches { + domainRes := strings.TrimSpace(domainMatch[1]) + + s1 := detectors.Result{ + DetectorType: detectorspb.DetectorType_OpenVpn, + Raw: []byte(clientSecretRes), + RawV2: []byte(clientIDRes + clientSecretRes), + } + + if verify { + client := s.client + if client == nil { + client = defaultClient + } + + payload := strings.NewReader("grant_type=client_credentials") + // OpenVPN API is in beta, We'll have to update the API endpoint once + // Docs: https://openvpn.net/cloud-docs/developer/creating-api-credentials.html + req, err := http.NewRequestWithContext(ctx, "POST", domainRes + "/api/beta/oauth/token", payload) + if err != nil { + continue + } + + data := fmt.Sprintf("%s:%s", clientIDRes, clientSecretRes) + sEnc := b64.StdEncoding.EncodeToString([]byte(data)) + + req.Header.Add("Authorization", fmt.Sprintf("Basic %s", sEnc)) + req.Header.Add("content-type", "application/x-www-form-urlencoded") + res, err := client.Do(req) + if err == nil { + defer res.Body.Close() + if res.StatusCode >= 200 && res.StatusCode < 300 { + s1.Verified = true + } else if res.StatusCode == 401 { + // The secret is determinately not verified (nothing to do) + } else { + s1.VerificationError = fmt.Errorf("unexpected HTTP response status %d", res.StatusCode) + } + } else { + s1.VerificationError = err + } + } + // This function will check false positives for common test words, but also it will make sure the key appears 'random' enough to be a real key. + if detectors.IsKnownFalsePositive(clientSecretRes, detectors.DefaultFalsePositives, true) { + continue + } + results = append(results, s1) + } + } + + + + } + + return results, nil +} + +func (s Scanner) Type() detectorspb.DetectorType { + return detectorspb.DetectorType_OpenVpn +} diff --git a/pkg/detectors/openvpn/openvpn_test.go b/pkg/detectors/openvpn/openvpn_test.go new file mode 100644 index 000000000000..03a3547bba4f --- /dev/null +++ b/pkg/detectors/openvpn/openvpn_test.go @@ -0,0 +1,133 @@ +//go:build detectors +// +build detectors + +package openvpn + +import ( + "context" + "fmt" + "testing" + "time" + + "github.com/google/go-cmp/cmp" + "github.com/google/go-cmp/cmp/cmpopts" + + "github.com/trufflesecurity/trufflehog/v3/pkg/detectors" + + "github.com/trufflesecurity/trufflehog/v3/pkg/common" + "github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb" +) + +func TestOpenvpn_FromChunk(t *testing.T) { + ctx, cancel := context.WithTimeout(context.Background(), time.Second*5) + defer cancel() + testSecrets, err := common.GetSecret(ctx, "trufflehog-testing", "detectors5") + if err != nil { + t.Fatalf("could not get test secrets from GCP: %s", err) + } + + domain := testSecrets.MustGetField("OPENVPN_DOMAIN") + clientId := testSecrets.MustGetField("OPENVPN_CLIENT_ID") + clientSecret := testSecrets.MustGetField("OPENVPN_CLIENT_SECRET") + inactiveClientSecret := testSecrets.MustGetField("OPENVPN_CLIENT_SECRET_INACTIVE") + + type args struct { + ctx context.Context + data []byte + verify bool + } + tests := []struct { + name string + s Scanner + args args + want []detectors.Result + wantErr bool + wantVerificationErr bool + }{ + { + name: "found, verified", + s: Scanner{}, + args: args{ + ctx: context.Background(), + data: []byte(fmt.Sprintf("You can find a openvpn secret %s openvpn clientId %s and domain %s within", clientSecret, clientId, domain)), + verify: true, + }, + want: []detectors.Result{ + { + DetectorType: detectorspb.DetectorType_OpenVpn, + Verified: true, + RawV2: []byte(clientId + clientSecret), + }, + }, + wantErr: false, + wantVerificationErr: false, + }, + { + name: "found, unverified", + s: Scanner{}, + args: args{ + ctx: context.Background(), + data: []byte(fmt.Sprintf("You can find a openvpn secret %s openvpn clientId %s and domain %s within but not valid", inactiveClientSecret, clientId, domain)), // the secret would satisfy the regex but not pass validation + verify: true, + }, + want: []detectors.Result{ + { + DetectorType: detectorspb.DetectorType_OpenVpn, + Verified: false, + RawV2: []byte(clientId + inactiveClientSecret), + }, + }, + wantErr: false, + wantVerificationErr: false, + }, + { + name: "not found", + s: Scanner{}, + args: args{ + ctx: context.Background(), + data: []byte("You cannot find the secret within"), + verify: true, + }, + want: nil, + wantErr: false, + wantVerificationErr: false, + }, + } + for _, tt := range tests { + t.Run(tt.name, func(t *testing.T) { + got, err := tt.s.FromData(tt.args.ctx, tt.args.verify, tt.args.data) + if (err != nil) != tt.wantErr { + t.Errorf("Openvpn.FromData() error = %v, wantErr %v", err, tt.wantErr) + return + } + for i := range got { + if len(got[i].Raw) == 0 { + t.Fatalf("no raw secret present: \n %+v", got[i]) + } + if (got[i].VerificationError != nil) != tt.wantVerificationErr { + t.Fatalf("wantVerificationError = %v, verification error = %v", tt.wantVerificationErr, got[i].VerificationError) + } + } + ignoreOpts := cmpopts.IgnoreFields(detectors.Result{}, "Raw", "VerificationError") + if diff := cmp.Diff(got, tt.want, ignoreOpts); diff != "" { + t.Errorf("Openvpn.FromData() %s diff: (-got +want)\n%s", tt.name, diff) + } + }) + } +} + +func BenchmarkFromData(benchmark *testing.B) { + ctx := context.Background() + s := Scanner{} + for name, data := range detectors.MustGetBenchmarkData() { + benchmark.Run(name, func(b *testing.B) { + b.ResetTimer() + for n := 0; n < b.N; n++ { + _, err := s.FromData(ctx, false, data) + if err != nil { + b.Fatal(err) + } + } + }) + } +} diff --git a/pkg/engine/defaults.go b/pkg/engine/defaults.go index 66c4552fd693..32c3bdb63393 100644 --- a/pkg/engine/defaults.go +++ b/pkg/engine/defaults.go @@ -5,6 +5,7 @@ import ( "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/envoyapikey" "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/huggingface" "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/ip2location" + "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/openvpn" "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/ramp" "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/salesforce" "github.com/trufflesecurity/trufflehog/v3/pkg/detectors/snowflake" @@ -1560,6 +1561,7 @@ func DefaultDetectors() []detectors.Detector { &sourcegraphcody.Scanner{}, voiceflow.Scanner{}, ip2location.Scanner{}, + openvpn.Scanner{}, } } diff --git a/pkg/pb/detectorspb/detectors.pb.go b/pkg/pb/detectorspb/detectors.pb.go index 2d1fa897ab98..9a8f8bfc3c97 100644 --- a/pkg/pb/detectorspb/detectors.pb.go +++ b/pkg/pb/detectorspb/detectors.pb.go @@ -1015,6 +1015,7 @@ const ( DetectorType_Instamojo DetectorType = 941 DetectorType_PortainerToken DetectorType = 942 DetectorType_Loggly DetectorType = 943 + DetectorType_OpenVpn DetectorType = 944 ) // Enum value maps for DetectorType. @@ -1960,6 +1961,7 @@ var ( 941: "Instamojo", 942: "PortainerToken", 943: "Loggly", + 944: "OpenVpn", } DetectorType_value = map[string]int32{ "Alibaba": 0, @@ -2902,6 +2904,7 @@ var ( "Instamojo": 941, "PortainerToken": 942, "Loggly": 943, + "OpenVpn": 944, } ) @@ -3280,7 +3283,7 @@ var file_detectors_proto_rawDesc = []byte{ 0x44, 0x65, 0x63, 0x6f, 0x64, 0x65, 0x72, 0x54, 0x79, 0x70, 0x65, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x09, 0x0a, 0x05, 0x50, 0x4c, 0x41, 0x49, 0x4e, 0x10, 0x01, 0x12, 0x0a, 0x0a, 0x06, 0x42, 0x41, 0x53, 0x45, 0x36, 0x34, 0x10, 0x02, 0x12, - 0x09, 0x0a, 0x05, 0x55, 0x54, 0x46, 0x31, 0x36, 0x10, 0x03, 0x2a, 0x95, 0x76, 0x0a, 0x0c, 0x44, + 0x09, 0x0a, 0x05, 0x55, 0x54, 0x46, 0x31, 0x36, 0x10, 0x03, 0x2a, 0xa3, 0x76, 0x0a, 0x0c, 0x44, 0x65, 0x74, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x54, 0x79, 0x70, 0x65, 0x12, 0x0b, 0x0a, 0x07, 0x41, 0x6c, 0x69, 0x62, 0x61, 0x62, 0x61, 0x10, 0x00, 0x12, 0x08, 0x0a, 0x04, 0x41, 0x4d, 0x51, 0x50, 0x10, 0x01, 0x12, 0x07, 0x0a, 0x03, 0x41, 0x57, 0x53, 0x10, 0x02, 0x12, 0x09, 0x0a, 0x05, 0x41, @@ -4226,11 +4229,12 @@ var file_detectors_proto_rawDesc = []byte{ 0x12, 0x0e, 0x0a, 0x09, 0x49, 0x6e, 0x73, 0x74, 0x61, 0x6d, 0x6f, 0x6a, 0x6f, 0x10, 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0x67, 0x2f, 0x76, 0x33, 0x2f, 0x70, 0x6b, 0x67, + 0x2f, 0x70, 0x62, 0x2f, 0x64, 0x65, 0x74, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x73, 0x70, 0x62, 0x62, + 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, } var ( diff --git a/proto/detectors.proto b/proto/detectors.proto index 52926d61f169..af644beb9945 100644 --- a/proto/detectors.proto +++ b/proto/detectors.proto @@ -952,6 +952,7 @@ enum DetectorType { Instamojo = 941; PortainerToken = 942; Loggly = 943; + OpenVpn = 944; } message Result {