CVE-2020-0294 : Exploit Details and Defense Strategies
Learn about CVE-2020-0294, a security flaw in Android WallpaperManagerService allowing a permission bypass and local escalation of privilege. Find mitigation steps here.
A security vulnerability in Android can lead to a permission bypass and local escalation of privilege.
Understanding CVE-2020-0294
What is CVE-2020-0294?
In bindWallpaperComponentLocked of WallpaperManagerService.java, an unsafe PendingIntent can allow a permission bypass, potentially leading to local privilege escalation.
The Impact of CVE-2020-0294
This vulnerability could result in an elevation of privilege, requiring user execution privileges with no user interaction for exploitation.
Technical Details of CVE-2020-0294
Vulnerability Description
- Vulnerability Type: Elevation of privilege
- Affects WallpaperManagerService.java in Android
Affected Systems and Versions
- Affected Product: Android
- Affected Versions: Android-10, Android-8.0, Android-8.1, Android-9
Exploitation Mechanism
- The vulnerability allows for an unsafe PendingIntent, enabling a potential permission bypass.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor vendor security bulletins for updates.
Long-Term Security Practices
- Regularly update Android devices with the latest patches and updates.
Patching and Updates
- Ensure the Android operating system is kept up to date with the latest security patches.