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Reachable Assertion


Severity Medium
Score 5.5/10


The package cordova-plugin-fingerprint-aio is a plugin that provides a single and simple interface for accessing fingerprint APIs on both Android 6+ and iOS. The exported activity "de.niklasmerz.cordova.biometric.BiometricActivity" can cause the app to crash. This vulnerability occurred because the activity didn't handle the case where it was requested with invalid or empty data which resulted in a crash. Any third party app can constantly call this activity with no permission. A 3rd party app/attacker using event listener can continually stop the app from working and make the victim unable to open it. In versions 5.0.1 and later of the cordova-plugin-fingerprint-aio, it doesn't export the activity anymore and is no longer vulnerable. Users are advised to upgrade to a fixed version as soon as possible. If you want to fix older versions, change the attribute "android:exported" from "plugin.xml" to false.

  • LOW
  • NONE
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-617 - Reachable Assertion

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Advisory Timeline

  • Published