CVE-2021-39797 : Vulnerability Insights and Analysis
Learn about CVE-2021-39797 affecting Android's LauncherApps.java. Understand the risk, impact, and mitigation steps for this privilege escalation vulnerability.
Android LauncherApps.java Vulnerability
Understanding CVE-2021-39797
A vulnerability in Android's LauncherApps.java could allow local users to escalate privileges without additional execution permissions.
What is CVE-2021-39797?
The CVE-2021-39797 vulnerability exists in several functions of LauncherApps.java in Android, leading to a potential escalation of privilege due to a logic error in the code.
The Impact of CVE-2021-39797
The vulnerability could enable local escalation of privilege without requiring user interaction, posing a security risk for affected Android versions.
Technical Details of CVE-2021-39797
Vulnerability Description
The flaw in LauncherApps.java can be exploited for an elevation of privilege, potentially granting unauthorized access.
Affected Systems and Versions
- Product: Android
- Versions: Android-12, Android-12L
Exploitation Mechanism
The vulnerability could be exploited locally, allowing threat actors to escalate privileges without user interaction.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches promptly to mitigate the vulnerability.
- Monitor for any suspicious activity associated with privilege escalation.
Long-Term Security Practices
- Conduct regular security audits to identify and address potential vulnerabilities.
- Implement the principle of least privilege to restrict access rights.
- Educate users on best practices for secure device usage.
Patching and Updates
Regularly update Android devices with the latest security patches to address known vulnerabilities.