CVE-2020-0409 : Exploit Details and Defense Strategies
Learn about CVE-2020-0409, a critical Android OS vulnerability in FileMap.cpp allowing local privilege escalation without user interaction. Find mitigation steps and patching details here.
Android OS FileMap.cpp vulnerability allows local privilege escalation without user interaction.
Understanding CVE-2020-0409
What is CVE-2020-0409?
The CVE-2020-0409 vulnerability exists in the 'create' function of FileMap.cpp in Android OS, leading to a potential out-of-bounds write due to integer overflow, enabling local privilege escalation.
The Impact of CVE-2020-0409
The vulnerability could result in an attacker gaining escalated privileges locally on the affected Android devices without requiring user interaction.
Technical Details of CVE-2020-0409
Vulnerability Description
An integer overflow in create of FileMap.cpp in Android OS allows an out-of-bounds write, potentially leading to local privilege escalation.
Affected Systems and Versions
- Product: Android
- Versions: Android-10, Android-8.0, Android-8.1, Android-9
Exploitation Mechanism
- No additional execution privileges required for exploiting the vulnerability
- User interaction is not necessary for exploitation
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly
- Monitor vendor security updates and apply them as soon as they are available
Long-Term Security Practices
- Regularly update the Android OS and related software to the latest versions
- Implement security best practices such as least privilege access and secure configurations
Patching and Updates
- Google has released a security bulletin addressing this vulnerability
- Refer to the Google Android security bulletin for patching information