MASWE-0066: Insecure Intents

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Check our GitHub Issues for MASWE-0066

Initial Description or Hints

e.g. calling startActivity, startService, sendBroadcast, or setResult on untrusted Intents without validating or sanitizing these Intents. Using an implicit intent to start a service is a security hazard, because you can't be certain what service will respond to the intent and the user can't see which service starts. e.g. mutable pending intents (not using FLAG_IMMUTABLE), replaying pending intents (not using FLAG_ONE_SHOT)

Relevant Topics

• Insecure Intent Redirection
• Insecure Implicit Intents
• Insecure Pending Intents (Mutable, Replaying)

References

• https://support.google.com/faqs/answer/9267555?hl=en
• https://developer.android.com/privacy-and-security/security-tips#intents
• https://developer.android.com/topic/security/risks/intent-redirection
• https://developer.android.com/topic/security/risks/implicit-intent-hijacking
• https://developer.android.com/topic/security/risks/pending-intent

MASTG v1 Coverage

No MASTG v1 tests are related to this weakness.