Android-13 Priv Escalation via TTY Mode Bypass in DeviceCapabilityListener
CVE-2022-20558 Published on December 16, 2022
In registerReceivers of DeviceCapabilityListener.java, there is a possible way to change preferred TTY mode due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-236264289
Vulnerability Analysis
CVE-2022-20558 is exploitable 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 have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2022-20558 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2022-20558
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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.