mirror of
https://github.com/trufflesecurity/trufflehog.git
synced 2024-11-10 15:14:38 +00:00
b3555f5419
* adding how to rotate guides * Adding project ID to metadata * update key name, remove comments, and ensure always present --------- Co-authored-by: counter <counter@counters-MacBook-Air.local> Co-authored-by: Dustin Decker <dustin@trufflesec.com>
96 lines
2.8 KiB
Go
96 lines
2.8 KiB
Go
package azure
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/Azure/go-autorest/autorest/azure/auth"
|
|
|
|
"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
|
|
"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
|
|
)
|
|
|
|
type Scanner struct{}
|
|
|
|
// Ensure the Scanner satisfies the interface at compile time.
|
|
var _ detectors.Detector = (*Scanner)(nil)
|
|
|
|
func mustFmtPat(id, pat string) *regexp.Regexp {
|
|
combinedID := strings.ReplaceAll(id, "_", "") + "|" + id
|
|
return regexp.MustCompile(fmt.Sprintf(pat, combinedID))
|
|
}
|
|
|
|
var (
|
|
// TODO: Azure storage access keys and investigate other types of creds.
|
|
|
|
// Azure App Oauth
|
|
idPatFmt = `(?i)(%s).{0,20}([a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12})`
|
|
clientIDPat = mustFmtPat("client_id", idPatFmt)
|
|
tenantIDPat = mustFmtPat("tenant_id", idPatFmt)
|
|
|
|
// TODO: support old patterns
|
|
secretPatFmt = `(?i)(%s).{0,20}([a-z0-9_\.\-~]{34})`
|
|
clientSecretPat = mustFmtPat("client_secret", secretPatFmt)
|
|
)
|
|
|
|
// 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{"azure"}
|
|
}
|
|
|
|
// FromData will find and optionally verify Azure 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)
|
|
|
|
clientSecretMatches := clientSecretPat.FindAllStringSubmatch(dataStr, -1)
|
|
for _, clientSecret := range clientSecretMatches {
|
|
tenantIDMatches := tenantIDPat.FindAllStringSubmatch(dataStr, -1)
|
|
for _, tenantID := range tenantIDMatches {
|
|
clientIDMatches := clientIDPat.FindAllStringSubmatch(dataStr, -1)
|
|
for _, clientID := range clientIDMatches {
|
|
s := detectors.Result{
|
|
DetectorType: detectorspb.DetectorType_Azure,
|
|
Raw: []byte(clientSecret[2]),
|
|
RawV2: []byte(clientID[2] + clientSecret[2] + tenantID[2]),
|
|
Redacted: clientID[2],
|
|
}
|
|
// Set the RotationGuideURL in the ExtraData
|
|
s.ExtraData = map[string]string{
|
|
"rotation_guide": "https://howtorotate.com/docs/tutorials/azure/",
|
|
}
|
|
|
|
if verify {
|
|
cred := auth.NewClientCredentialsConfig(clientID[2], clientSecret[2], tenantID[2])
|
|
token, err := cred.ServicePrincipalToken()
|
|
if err != nil {
|
|
continue
|
|
}
|
|
err = token.Refresh()
|
|
if err == nil {
|
|
s.Verified = true
|
|
}
|
|
}
|
|
|
|
if !s.Verified {
|
|
if detectors.IsKnownFalsePositive(s.Redacted, detectors.DefaultFalsePositives, true) {
|
|
continue
|
|
}
|
|
if detectors.IsKnownFalsePositive(string(s.Raw), detectors.DefaultFalsePositives, true) {
|
|
continue
|
|
}
|
|
}
|
|
|
|
results = append(results, s)
|
|
}
|
|
}
|
|
}
|
|
|
|
return results, nil
|
|
}
|
|
|
|
func (s Scanner) Type() detectorspb.DetectorType {
|
|
return detectorspb.DetectorType_Azure
|
|
}
|