CVE-2022-20124 : Exploit Details and Defense Strategies
Learn about CVE-2022-20124, a vulnerability in Android allowing Guest users to reset pre-loaded applications for other users, leading to local privilege escalation. Find out the impact, affected systems, and mitigation steps.
This article provides an overview of CVE-2022-20124, detailing the vulnerability, its impact, technical details, and mitigation steps.
Understanding CVE-2022-20124
In deletePackageX of DeletePackageHelper.java, there is a possible way for a Guest user to reset pre-loaded applications for other users due to a permissions bypass, potentially leading to local escalation of privilege without requiring additional execution privileges.
What is CVE-2022-20124?
CVE-2022-20124 pertains to a vulnerability in Android that allows a Guest user to reset pre-loaded applications for other users, leading to local privilege escalation.
The Impact of CVE-2022-20124
The vulnerability could be exploited by a Guest user to escalate their privileges locally, posing a risk of unauthorized access to sensitive data and operations on affected Android devices.
Technical Details of CVE-2022-20124
Vulnerability Description
The vulnerability resides in deletePackageX of DeletePackageHelper.java, enabling a Guest user to reset pre-loaded applications for other users through a permissions bypass.
Affected Systems and Versions
The vulnerability affects multiple versions of Android, including Android-10, Android-11, Android-12, Android-12L, and Android-13.
Exploitation Mechanism
The vulnerability allows a Guest user to exploit a permissions bypass to reset pre-loaded applications for other users, thereby elevating their privileges locally.
Mitigation and Prevention
Immediate Steps to Take
Users are advised to apply the latest security updates provided by Android to address the CVE-2022-20124 vulnerability promptly.
Long-Term Security Practices
Implementing least privilege principles, restricting Guest user capabilities, and maintaining regular security updates can help mitigate risks associated with privilege escalation vulnerabilities.
Patching and Updates
Regularly check for and install security patches and updates released by Android to ensure the ongoing security of your devices.