Detect API keys without app keys (#1605)

This commit is contained in:
Bill Rich 2023-08-03 15:11:54 -07:00 committed by GitHub
parent cda88ebdf0
commit c2b49b060b
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 80 additions and 17 deletions

View file

@ -20,7 +20,7 @@ var (
client = 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{"datadog", "dd"}) + `\b([a-zA-Z-0-9]{40})\b`)
appPat = regexp.MustCompile(detectors.PrefixRegex([]string{"datadog", "dd"}) + `\b([a-zA-Z-0-9]{40})\b`)
apiPat = regexp.MustCompile(detectors.PrefixRegex([]string{"datadog", "dd"}) + `\b([a-zA-Z-0-9]{32})\b`)
)
@ -34,24 +34,28 @@ func (s Scanner) Keywords() []string {
func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
dataStr := string(data)
matches := keyPat.FindAllStringSubmatch(dataStr, -1)
appMatches := appPat.FindAllStringSubmatch(dataStr, -1)
apiMatches := apiPat.FindAllStringSubmatch(dataStr, -1)
for _, match := range matches {
if len(match) != 2 {
for _, apiMatch := range apiMatches {
if len(apiMatch) != 2 {
continue
}
resMatch := strings.TrimSpace(match[1])
for _, apimatch := range apiMatches {
if len(apimatch) != 2 {
resApiMatch := strings.TrimSpace(apiMatch[1])
appIncluded := false
for _, appMatch := range appMatches {
if len(appMatch) != 2 {
continue
}
resApiMatch := strings.TrimSpace(apimatch[1])
resAppMatch := strings.TrimSpace(appMatch[1])
s1 := detectors.Result{
DetectorType: detectorspb.DetectorType_DatadogToken,
Raw: []byte(resMatch),
RawV2: []byte(resMatch + resApiMatch),
Raw: []byte(resAppMatch),
RawV2: []byte(resAppMatch + resApiMatch),
ExtraData: map[string]string{
"Type": "Application+APIKey",
},
}
if verify {
@ -62,7 +66,7 @@ func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (result
}
req.Header.Add("Content-Type", "application/json")
req.Header.Add("DD-API-KEY", resApiMatch)
req.Header.Add("DD-APPLICATION-KEY", resMatch)
req.Header.Add("DD-APPLICATION-KEY", resAppMatch)
res, err := client.Do(req)
if err == nil {
defer res.Body.Close()
@ -70,16 +74,49 @@ func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (result
s1.Verified = true
} else {
// 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(resMatch, detectors.DefaultFalsePositives, true) {
if detectors.IsKnownFalsePositive(resApiMatch, detectors.DefaultFalsePositives, true) {
continue
}
}
}
}
appIncluded = true
results = append(results, s1)
}
if !appIncluded {
s1 := detectors.Result{
DetectorType: detectorspb.DetectorType_DatadogToken,
Raw: []byte(resApiMatch),
RawV2: []byte(resApiMatch),
ExtraData: map[string]string{
"Type": "APIKeyOnly",
},
}
if verify {
req, err := http.NewRequestWithContext(ctx, "GET", "https://api.datadoghq.com/api/v1/validate", nil)
if err != nil {
continue
}
req.Header.Add("Content-Type", "application/json")
req.Header.Add("DD-API-KEY", resApiMatch)
res, err := client.Do(req)
if err == nil {
defer res.Body.Close()
if res.StatusCode >= 200 && res.StatusCode < 300 {
s1.Verified = true
} else {
// 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(resApiMatch, detectors.DefaultFalsePositives, true) {
continue
}
}
}
}
results = append(results, s1)
}
}
return results, nil

View file

@ -19,11 +19,11 @@ import (
func TestDatadogToken_FromChunk(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
testSecrets, err := common.GetSecret(ctx, "trufflehog-testing", "detectors3")
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("DATADOGTOKEN_TOKEN")
apiKey := testSecrets.MustGetField("DATADOGTOKEN_TOKEN")
appKey := testSecrets.MustGetField("DATADOGTOKEN_APPKEY")
inactiveAppKey := testSecrets.MustGetField("DATADOGTOKEN_INACTIVE")
@ -44,13 +44,16 @@ func TestDatadogToken_FromChunk(t *testing.T) {
s: Scanner{},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a datadogtoken secret %s within datadog %s", appKey, secret)),
data: []byte(fmt.Sprintf("You can find a datadogtoken secret %s within datadog %s", appKey, apiKey)),
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_DatadogToken,
Verified: true,
ExtraData: map[string]string{
"Type": "Application+APIKey",
},
},
},
wantErr: false,
@ -60,13 +63,35 @@ func TestDatadogToken_FromChunk(t *testing.T) {
s: Scanner{},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a datadogtoken secret %s within but datadog %s not valid", inactiveAppKey, secret)), // the secret would satisfy the regex but not pass validation
data: []byte(fmt.Sprintf("You can find a datadogtoken secret %s within but datadog %s not valid", inactiveAppKey, apiKey)), // the secret would satisfy the regex but not pass validation
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_DatadogToken,
Verified: false,
ExtraData: map[string]string{
"Type": "Application+APIKey",
},
},
},
wantErr: false,
},
{
name: "api key found, verified",
s: Scanner{},
args: args{
ctx: context.Background(),
data: []byte(fmt.Sprintf("You can find a datadogtoken secret %s", apiKey)), // the secret would satisfy the regex but not pass validation
verify: true,
},
want: []detectors.Result{
{
DetectorType: detectorspb.DetectorType_DatadogToken,
Verified: true,
ExtraData: map[string]string{
"Type": "APIKeyOnly",
},
},
},
wantErr: false,
@ -96,6 +121,7 @@ func TestDatadogToken_FromChunk(t *testing.T) {
t.Fatalf("no raw secret present: \n %+v", got[i])
}
got[i].Raw = nil
got[i].RawV2 = nil
}
if diff := pretty.Compare(got, tt.want); diff != "" {
t.Errorf("DatadogToken.FromData() %s diff: (-got +want)\n%s", tt.name, diff)