CVE-2021-39767: High severity android vulnerability
In miniadb, there is a possible way to get read/write access to recovery system properties due to an insecure default value. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-201308542
Affected Software
Event History
Frequently Asked Questions
Who is realistically exposed to this issue?
Android 12L devices are affected. Exploitation is local and requires a low-privileged attacker who already has access to the device or its local environment.
What does an attacker need to exploit it?
The attacker needs local access and low privileges. No user interaction or additional execution privileges are required.
What is the security impact?
An attacker may obtain read/write access to recovery system properties and escalate privileges locally. The listed CVSS vector indicates high impact to confidentiality, integrity, and availability.
Is this caused by a non-default configuration?
No. The issue is attributed to an insecure default value in miniadb.