Android Path Traversal in UserManagerService System File Overwrite
CVE-2022-20449 Published on December 13, 2022
In writeApplicationRestrictionsLAr of UserManagerService.java, there is a possible overwrite of system files due to a path traversal error. This could lead to local denial of service with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-239701237
Vulnerability Analysis
CVE-2022-20449 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2022-20449 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2022-20449
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Exploit Probability
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.