CVE-2020-0479 : Exploit Details and Defense Strategies
Learn about CVE-2020-0479, a vulnerability in Android that allows malicious apps to access files without user permission, leading to privilege escalation. Stay secure with mitigation steps.
Android vulnerability allowing a malicious app to bypass permissions, potentially leading to privilege escalation.
Understanding CVE-2020-0479
What is CVE-2020-0479?
CVE-2020-0479 is a vulnerability in callUnchecked of DocumentsProvider.java in Android, potentially enabling a permissions bypass leading to local privilege escalation.
The Impact of CVE-2020-0479
The vulnerability could allow a malicious app to access files without user permission, exploiting the DocumentProvider without requiring additional privileges.
Technical Details of CVE-2020-0479
Vulnerability Description
The issue in DocumentsProvider.java could lead to a local privilege escalation, enabling a malicious app to access files without user consent.
Affected Systems and Versions
- Product: Android
- Version: Android-11
Exploitation Mechanism
- User interaction is required for exploitation, where a malicious app can access DocumentProvider files without additional execution privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply security updates promptly to mitigate the vulnerability.
- Exercise caution when granting permissions to apps on Android devices.
Long-Term Security Practices
- Regularly update and patch Android devices to protect against known vulnerabilities.
- Avoid downloading apps from untrusted sources to minimize the risk of malicious exploitation.
- Monitor official security bulletins and apply recommended security measures.
Patching and Updates
- Refer to the official Android security bulletin for detailed patch information.