CVE-2021-39693 : Security Advisory and Response
Learn about CVE-2021-39693, a vulnerability in Android-12 that allows local privilege escalation without user interaction. Find out how to mitigate this issue.
Android-12 has a vulnerability that could allow local privilege escalation without additional privileges. This issue does not require user interaction for exploitation.
Understanding CVE-2021-39693
This CVE affects Android-12, potentially enabling unauthorized access to location data.
What is CVE-2021-39693?
The vulnerability in onUidStateChanged of AppOpsService.java allows unauthorized access to location without a visible indicator, leading to local privilege escalation.
The Impact of CVE-2021-39693
The flaw could be exploited without the need for user interaction, potentially escalating privileges locally on the affected devices.
Technical Details of CVE-2021-39693
This section provides technical details of the vulnerability in Android-12.
Vulnerability Description
The vulnerability in onUidStateChanged of AppOpsService.java allows unauthorized access to location data, leading to local privilege escalation.
Affected Systems and Versions
- Product: Android
- Versions: Android-12
Exploitation Mechanism
- Logic error in the code enables access to location without a visible indicator
Mitigation and Prevention
Steps to mitigate the CVE-2021-39693 vulnerability.
Immediate Steps to Take
- Implement the recommended security patches
- Monitor for any unauthorized access to location data
- Consider restricting location permissions for apps
Long-Term Security Practices
- Regularly update the Android operating system
- Conduct security audits to detect vulnerabilities early
- Educate users on safe app usage and permissions
Patching and Updates
- Apply the latest security updates from Android