mobsf.mobsfscan.tls_pinning.android_certificate_pinning

rules:
  - id: android_certificate_pinning
    patterns:
      - pattern-either:
          - pattern: |
              import com.toyberman.RNSslPinningPackage;
          - pattern: |
              import org.thoughtcrime.ssl.pinning;
          - pattern: |
              new PinningValidationReportTestBroadcastReceiver()
          - pattern: |
              new CertificatePinner.Builder()
          - pattern: |
              CertificatePinner.Builder()
          - pattern: |
              TrustKit.getInstance().getSSLSocketFactory(...)
          - pattern: |
              $X = $R.openRawResource(...);
              ...
              $KS = KeyStore.getInstance(...);
              ...
              $KS.load($X, ...);
              ...
              $T.init($KS);
          - pattern: |
              TrustKit.initializeWithNetworkSecurityConfiguration(...);
          - pattern: |
              OkHttp2Helper.getPinningInterceptor()
          - pattern: |
              OkHttp3Helper.getPinningInterceptor()
          - pattern: |
              new PinningHostnameVerifier(...)
          - pattern: |
              PinningHelper.getPinnedHttpsURLConnection
          - pattern: |
              $F.openRawResource(...);
              ...
              $X = new Picasso.Builder(...);
    message: This app does not use a TLS/SSL certificate or public key pinning in
      code to detect or prevent MITM attacks in secure communication channel.
      Please verify if pinning is enabled in `network_security_config.xml`.
    languages:
      - java
    severity: INFO
    metadata:
      cwe: cwe-295
      owasp-mobile: m3
      masvs: network-4
      reference: https://github.com/MobSF/owasp-mstg/blob/master/Document/0x05g-Testing-Network-Communication.md#testing-custom-certificate-stores-and-certificate-pinning-mstg-network-4
      license: LGPL-3.0-or-later