Android ResetTargetTaskHelper Hijack via allowTaskReparenting for LPE
CVE-2022-20475 Published on December 13, 2022

In test of ResetTargetTaskHelper.java, there is a possible hijacking of any app which sets allowTaskReparenting="true" due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-240663194

NVD

Vulnerability Analysis

CVE-2022-20475 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.


Products Associated with CVE-2022-20475

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Google Android
 

Exploit Probability

EPSS
0.01%
Percentile
2.75%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.