CVE-2021-39702 : Vulnerability Insights and Analysis
Learn about CVE-2021-39702, a critical vulnerability in Android-12 that allows unauthorized app certificate installations, leading to privilege escalation. Take immediate preventive steps.
This article provides insights into CVE-2021-39702, a security vulnerability affecting Android-12.
Understanding CVE-2021-39702
CVE-2021-39702 is a vulnerability in Android-12 that can be exploited by a third-party app to install certificates without user approval, potentially leading to an elevation of privilege.
What is CVE-2021-39702?
The vulnerability exists in the onCreate function of RequestManageCredentials.java, allowing for a tapjacking/overlay attack that could grant unauthorized installation of certificates by a malicious app.
The Impact of CVE-2021-39702
This CVE could result in a local escalation of privilege on Android-12 devices, requiring user interaction for successful exploitation.
Technical Details of CVE-2021-39702
CVE-2021-39702 involves the following technical aspects:
Vulnerability Description
- Found in onCreate of RequestManageCredentials.java
- Potential for third-party certificate installation without user consent
Affected Systems and Versions
- Affected Product: Android
- Affected Version: Android-12
Exploitation Mechanism
- Tapjacking/overlay attack that circumvents user approval
Mitigation and Prevention
Effective strategies to mitigate the risks associated with CVE-2021-39702:
Immediate Steps to Take
- Exercise caution while granting permissions to apps
- Regularly review and monitor app activities
Long-Term Security Practices
- Keep Android-12 updated with the latest security patches
- Avoid sideloading apps from untrusted sources
Patching and Updates
- Apply security updates provided by Google Android promptly