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https://github.com/trufflesecurity/trufflehog.git
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4106ce7bf0
* implementing azure container registry password detector * Fixing boundry feedback * whoops * update verification code * fix regex --------- Co-authored-by: Chair <chair@Chairs-MacBook-Pro.local> Co-authored-by: Zachary Rice <zachary.rice@trufflesec.com>
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
package azurecontainerregistry
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import (
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"context"
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"encoding/base64"
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"fmt"
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"net/http"
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"regexp"
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"github.com/trufflesecurity/trufflehog/v3/pkg/common"
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"github.com/trufflesecurity/trufflehog/v3/pkg/detectors"
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"github.com/trufflesecurity/trufflehog/v3/pkg/pb/detectorspb"
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)
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type Scanner struct {
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client *http.Client
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}
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// Ensure the Scanner satisfies the interface at compile time.
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var _ detectors.Detector = (*Scanner)(nil)
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var (
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defaultClient = common.SaneHttpClient()
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// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
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url = regexp.MustCompile(`([a-zA-Z0-9-]{1,100})\.azurecr\.io`)
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password = regexp.MustCompile(`\b[A-Za-z0-9+/=]{52}\b`)
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)
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// Keywords are used for efficiently pre-filtering chunks.
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// Use identifiers in the secret preferably, or the provider name.
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func (s Scanner) Keywords() []string {
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return []string{".azurecr.io"}
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}
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// FromData will find and optionally verify Azurecontainerregistry secrets in a given set of bytes.
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func (s Scanner) FromData(ctx context.Context, verify bool, data []byte) (results []detectors.Result, err error) {
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dataStr := string(data)
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urlMatches := url.FindAllStringSubmatch(dataStr, -1)
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passwordMatches := password.FindAllStringSubmatch(dataStr, -1)
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for _, urlMatch := range urlMatches {
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for _, passwordMatch := range passwordMatches {
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endpoint := urlMatch[0]
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username := urlMatch[1]
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password := passwordMatch[0]
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s1 := detectors.Result{
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DetectorType: detectorspb.DetectorType_AzureContainerRegistry,
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Raw: []byte(endpoint),
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Redacted: endpoint,
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RawV2: []byte(endpoint + password),
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}
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if verify {
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client := s.client
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if client == nil {
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client = defaultClient
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}
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auth := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", username, password)))
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url := fmt.Sprintf("https://%s/v2/", endpoint)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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continue
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}
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req.Header.Set("Authorization", fmt.Sprintf("Basic %s", auth))
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res, err := client.Do(req)
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if err == nil {
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defer res.Body.Close()
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if res.StatusCode >= 200 && res.StatusCode < 300 {
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s1.Verified = true
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} else if res.StatusCode == 401 {
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// The secret is determinately not verified (nothing to do)
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} else {
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s1.VerificationError = fmt.Errorf("unexpected HTTP response status %d", res.StatusCode)
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}
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} else {
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s1.VerificationError = err
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}
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}
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if !s1.Verified && detectors.IsKnownFalsePositive(password, detectors.DefaultFalsePositives, true) {
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continue
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}
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results = append(results, s1)
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if s1.Verified {
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break
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}
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}
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}
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return results, nil
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}
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func (s Scanner) Type() detectorspb.DetectorType {
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return detectorspb.DetectorType_AzureContainerRegistry
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}
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