CVE-2023-40089
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-40089 affects Android's DevicePolicyManagerService.java component, specifically in the getCredentialManagerPolicy function. The vulnerability was discovered and disclosed in December 2023, affecting Android 14.0. The issue stems from a missing permission check that could allow users to select credential managers without proper authorization (Android Bulletin, NVD).

Technical details

The vulnerability exists in the getCredentialManagerPolicy function of DevicePolicyManagerService.java where a missing permission check allows unauthorized credential manager selection. The issue has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. This indicates a local attack vector with low attack complexity and privilege requirements, requiring no user interaction (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with no additional execution privileges needed. The high CVSS score indicates potential severe impacts on confidentiality, integrity, and availability of the system (NVD).

Mitigation and workarounds

Google has released a patch for this vulnerability in the December 2023 security update. The fix involves making the getCredentialManagerPolicy function user handle aware (Android Patch, Android Bulletin).

Additional resources


SourceThis report was generated using AI

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