mobsf.mobsfscan.xxe.xmlfactory_xxe.xmlinputfactory_xxe

rules:
  - id: xmlinputfactory_xxe
    patterns:
      - pattern-not-inside: >
          $RETURNTYPE $METHOD(...) {
            ...
            $XMLFACTORY.setProperty("javax.xml.stream.isSupportingExternalEntities", false);
            ...
          }
      - pattern-not-inside: >
          $RETURNTYPE $METHOD(...) {
            ...
            $XMLFACTORY.setProperty(java.xml.stream.XMLFactoryInput.IS_SUPPORTING_EXTERNAL_ENTITIES, false);
            ...
          }
      - pattern-either:
          - pattern: $XMLFACTORY = $W.newFactory(...);
          - pattern: $XMLFACTORY = new XMLInputFactory(...);
    message: >
      XML external entities are not explicitly disabled for this
      XMLInputFactory. This could be vulnerable to XML external entity
      vulnerabilities. Explicitly disable external entities by setting
      "javax.xml.stream.isSupportingExternalEntities" to false.
    severity: ERROR
    languages:
      - java
    metadata:
      cwe: cwe-611
      owasp-mobile: m8
      masvs: platform-2
      reference: https://github.com/MobSF/owasp-mstg/blob/master/Document/0x04h-Testing-Code-Quality.md#injection-flaws-mstg-arch-2-and-mstg-platform-2
      license: LGPL-3.0-or-later
      vulnerability_class:
        - Other