CVE-2020-0399 : Exploit Details and Defense Strategies
Learn about CVE-2020-0399, a Android vulnerability allowing permission bypass with sensitive information disclosure. Find mitigation steps and necessary updates.
This CVE relates to a possible permission bypass in Android that could lead to local information disclosure due to an unsafe PendingIntent.
Understanding CVE-2020-0399
This CVE involves a vulnerability in the Android operating system that could allow an attacker to bypass permissions and disclose sensitive information.
What is CVE-2020-0399?
CVE-2020-0399 is a vulnerability found in the showLimitedSimFunctionWarningNotification function of NotificationMgr.java in Android, potentially leading to local information disclosure.
The Impact of CVE-2020-0399
The vulnerability could result in an attacker bypassing permissions, leading to the disclosure of local information with the requirement of user execution privileges.
Technical Details of CVE-2020-0399
This section outlines specific technical details of the CVE.
Vulnerability Description
The vulnerability is caused by an unsafe PendingIntent in the showLimitedSimFunctionWarningNotification function in Android, allowing a potential permission bypass.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-8.0, Android-8.1, Android-9, Android-10, Android-11
Exploitation Mechanism
- The vulnerability does not require user interaction for exploitation
Mitigation and Prevention
Steps to address and prevent exploitation of the CVE.
Immediate Steps to Take
- Monitor official Android security bulletins for patches
- Apply relevant security updates to affected systems
- Consider restricting app installation from unknown sources
Long-Term Security Practices
- Regularly update the Android OS and applications
- Employ caution while granting app permissions to minimize risks
Patching and Updates
- Check for security updates from reliable sources
- Apply patches promptly to ensure system security