Kashif Khan
743aa80c15
* refactored cloudflarecakey detector * resolved comments * close the resp body
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
package cloudflarecakey
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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regexp "github.com/wasilibs/go-re2"
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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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// 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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client = common.SaneHttpClient()
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// origin ca keys documentation: https://developers.cloudflare.com/fundamentals/api/get-started/ca-keys/
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keyPat = regexp.MustCompile(`\b(v1\.0-[A-Za-z0-9-]{171})\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{"cloudflare"}
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}
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// FromData will find and optionally verify CloudflareCaKey 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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uniqueMatches := make(map[string]struct{})
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for _, matches := range keyPat.FindAllStringSubmatch(dataStr, -1) {
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uniqueMatches[matches[1]] = struct{}{}
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}
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for caKey := range uniqueMatches {
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s1 := detectors.Result{
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DetectorType: detectorspb.DetectorType_CloudflareCaKey,
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Raw: []byte(caKey),
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}
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if verify {
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isVerified, verificationErr := verifyCloudFlareCAKey(ctx, client, caKey)
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s1.Verified = isVerified
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s1.SetVerificationError(verificationErr, caKey)
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}
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results = append(results, s1)
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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_CloudflareCaKey
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}
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func (s Scanner) Description() string {
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return "Cloudflare is a web infrastructure and website security company. Cloudflare CA keys can be used to manage SSL/TLS certificates and other security settings."
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}
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func verifyCloudFlareCAKey(ctx context.Context, client *http.Client, caKey string) (bool, error) {
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req, err := http.NewRequestWithContext(ctx, "GET", "https://api.cloudflare.com/client/v4/certificates?zone_id=a", nil)
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if err != nil {
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return false, nil
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}
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req.Header.Add("Content-Type", "application/json")
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req.Header.Add("user-agent", "curl/7.68.0") // pretend to be from curl so we do not wait 100+ seconds -> nice try did not work
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req.Header.Add("X-Auth-User-Service-Key", caKey)
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resp, err := client.Do(req)
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if err != nil {
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return false, err
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}
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defer func() {
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_, _ = io.Copy(io.Discard, resp.Body)
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_ = resp.Body.Close()
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}()
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switch resp.StatusCode {
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case http.StatusOK:
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return true, nil
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case http.StatusUnauthorized, http.StatusForbidden:
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return false, nil
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default:
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return false, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
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}
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}
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