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adding eraser ai detector (#2961)

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* adding eraser ai detector

* add eraser to defaults
This commit is contained in:
āh̳̕mͭͭͨͩ̐e̘ͬ́͋ͬ̊̓͂d 2024-06-14 10:10:37 -04:00 committed by GitHub
parent cb072603dc
commit 7bf3a9b5e2
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GPG key ID: B5690EEEBB952194
5 changed files with 341 additions and 6 deletions
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108
pkg/detectors/eraser/eraser.go Normal file
View file

@ -0,0 +1,108 @@
package eraser
import (
"context"
"fmt"
"io"
"net/http"
"strings"
regexp "github.com/wasilibs/go-re2"
"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()
// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
keyPat = regexp.MustCompile(detectors.PrefixRegex([]string{"eraser"}) + `\b([0-9a-zA-Z]{20})\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{"eraser"}
}
// FromData will find and optionally verify Eraser 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)
uniqueMatches := make(map[string]struct{})
for _, match := range keyPat.FindAllStringSubmatch(dataStr, -1) {
uniqueMatches[match[1]] = struct{}{}
}
for match := range uniqueMatches {
s1 := detectors.Result{
DetectorType: detectorspb.DetectorType_Eraser,
Raw: []byte(match),
}
if verify {
client := s.client
if client == nil {
client = defaultClient
}
isVerified, extraData, verificationErr := verifyMatch(ctx, client, match)
s1.Verified = isVerified
s1.ExtraData = extraData
s1.SetVerificationError(verificationErr, match)
}
results = append(results, s1)
}
return
}
func verifyMatch(ctx context.Context, client *http.Client, token string) (bool, map[string]string, error) {
// https://docs.eraser.io/reference/generate-diagram-from-eraser-dsl
payload := strings.NewReader("{\"elements\":[{\"type\":\"diagram\"}]}")
url := "https://app.eraser.io/api/render/elements"
req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, payload)
if err != nil {
return false, nil, nil
}
req.Header = http.Header{"Authorization": []string{"Bearer " + token}}
req.Header.Add("content-type", "application/json")
res, err := client.Do(req)
if err != nil {
return false, nil, err
}
defer func() {
_, _ = io.Copy(io.Discard, res.Body)
_ = res.Body.Close()
}()
switch res.StatusCode {
case http.StatusOK:
return true, nil, nil
case http.StatusNotFound:
// 404 API token not found
// The secret is determinately not verified (nothing to do)
return false, nil, nil
default:
// 400 The request is missing the 'text' parameter
// 500 Eraser was unable to generate a result
// 503 Service temporarily unavailable. This may be the result of too many requests.
return false, nil, fmt.Errorf("unexpected HTTP response status %d", res.StatusCode)
}
}
func (s Scanner) Type() detectorspb.DetectorType {
return detectorspb.DetectorType_Eraser
}

220
pkg/detectors/eraser/eraser_test.go Normal file
View file

@ -0,0 +1,220 @@
//go:build detectors
// +build detectors
package eraser
import (
"context"
"fmt"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/trufflesecurity/trufflehog/v3/pkg/common"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
"github.com/trufflesecurity/trufflehog/v3/pkg/engine/ahocorasick"
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
)
func TestEraser_Pattern(t *testing.T) {
d := Scanner{}
ahoCorasickCore := ahocorasick.NewAhoCorasickCore([]detectors.Detector{d})
tests := []struct {
name string
input string
want []string
}{
{
name: "typical pattern",
input: "eraser_token = 'KkBmh6TUBIcyFAp20XXa'",
want: []string{"KkBmh6TUBIcyFAp20XXa"},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
matchedDetectors := ahoCorasickCore.FindDetectorMatches([]byte(test.input))
if len(matchedDetectors) == 0 {
t.Errorf("keywords '%v' not matched by: %s", d.Keywords(), test.input)
return
}
results, err := d.FromData(context.Background(), false, []byte(test.input))
if err != nil {
t.Errorf("error = %v", err)
return
}
if len(results) != len(test.want) {
if len(results) == 0 {
t.Errorf("did not receive result")
} else {
t.Errorf("expected %d results, only received %d", len(test.want), len(results))
}
return
}
actual := make(map[string]struct{}, len(results))
for _, r := range results {
if len(r.RawV2) > 0 {
actual[string(r.RawV2)] = struct{}{}
} else {
actual[string(r.Raw)] = struct{}{}
}
}
expected := make(map[string]struct{}, len(test.want))
for _, v := range test.want {
expected[v] = struct{}{}
}
if diff := cmp.Diff(expected, actual); diff != "" {
t.Errorf("%s diff: (-want +got)\n%s", test.name, diff)
}
})
}
}
func TestEraser_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)
}
secret := testSecrets.MustGetField("ERASER")
inactiveSecret := testSecrets.MustGetField("ERASER_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 eraser secret %s within", secret)),
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_Eraser,
Verified: true,
},
},
wantErr: false,
wantVerificationErr: false,
},
{
name: "found, unverified",
s: Scanner{},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a eraser secret %s within but not valid", inactiveSecret)), // the secret would satisfy the regex but not pass validation
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_Eraser,
Verified: false,
},
},
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,
},
{
name: "found, would be verified if not for timeout",
s: Scanner{client: common.SaneHttpClientTimeOut(1 * time.Microsecond)},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a eraser secret %s within", secret)),
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_Eraser,
Verified: false,
},
},
wantErr: false,
wantVerificationErr: true,
},
{
name: "found, verified but unexpected api surface",
s: Scanner{client: common.ConstantResponseHttpClient(500, "")},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a eraser secret %s within", secret)),
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_Eraser,
Verified: false,
},
},
wantErr: false,
wantVerificationErr: true,
},
}
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("Eraser.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("Eraser.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)
}
}
})
}
}

2
pkg/engine/defaults.go
View file

@ -233,6 +233,7 @@ import (
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/enablex"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/enigma"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/envoyapikey"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/eraser"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/etherscan"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/ethplorer"
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors/eventbrite"
@ -1608,6 +1609,7 @@ func DefaultDetectors() []detectors.Detector {
intra42.Scanner{},
groq.Scanner{},
twitterconsumerkey.Scanner{},
eraser.Scanner{},
}
}

16
pkg/pb/detectorspb/detectors.pb.go
View file

@ -1089,6 +1089,7 @@ const (
DetectorType_Intra42 DetectorType = 987
DetectorType_Groq DetectorType = 988
DetectorType_TwitterConsumerkey DetectorType = 989
DetectorType_Eraser DetectorType = 990
)
// Enum value maps for DetectorType.
@ -2080,6 +2081,7 @@ var (
987: "Intra42",
988: "Groq",
989: "TwitterConsumerkey",
990: "Eraser",
}
DetectorType_value = map[string]int32{
"Alibaba": 0,
@ -3068,6 +3070,7 @@ var (
"Intra42": 987,
"Groq": 988,
"TwitterConsumerkey": 989,
"Eraser": 990,
}
)
@ -3521,7 +3524,7 @@ var file_detectors_proto_rawDesc = []byte{
0x4c, 0x41, 0x49, 0x4e, 0x10, 0x01, 0x12, 0x0a, 0x0a, 0x06, 0x42, 0x41, 0x53, 0x45, 0x36, 0x34,
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0x0f, 0x45, 0x53, 0x43, 0x41, 0x50, 0x45, 0x44, 0x5f, 0x55, 0x4e, 0x49, 0x43, 0x4f, 0x44, 0x45,
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@ -4532,11 +4535,12 @@ var file_detectors_proto_rawDesc = []byte{
0x12, 0x0c, 0x0a, 0x07, 0x49, 0x6e, 0x74, 0x72, 0x61, 0x34, 0x32, 0x10, 0xdb, 0x07, 0x12, 0x09,
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0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (

1
proto/detectors.proto
View file

@ -999,6 +999,7 @@ enum DetectorType {
Intra42 = 987;
Groq = 988;
TwitterConsumerkey = 989;
Eraser = 990;
}
message Result {