CVE-2020-27023 : Security Advisory and Response
Learn about CVE-2020-27023, a vulnerability in Android's BluetoothMediaBrowserService.java allowing permission bypass and information disclosure. Find mitigation steps and updates here.
Android vulnerability in setErrorPlaybackState of BluetoothMediaBrowserService.java allows permission bypass leading to information disclosure.
Understanding CVE-2020-27023
This CVE involves a potential permission bypass in Android's BluetoothMediaBrowserService.java, which could result in local information disclosure.
What is CVE-2020-27023?
- The vulnerability lies in setErrorPlaybackState due to an unsafe PendingIntent, enabling a permission bypass.
- Exploitation does not require user interaction but needs System execution privileges.
The Impact of CVE-2020-27023
- Local information disclosure is possible, posing a risk to user data confidentiality.
Technical Details of CVE-2020-27023
Vulnerability Description
- In setErrorPlaybackState of BluetoothMediaBrowserService.java, an unsafe PendingIntent allows a permission bypass.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-11
Exploitation Mechanism
- The vulnerability can be exploited without user interaction, requiring System execution privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches promptly to mitigate the risk of information disclosure.
- Monitor official Android security bulletins for updates and advisories.
Long-Term Security Practices
- Regularly update Android devices to the latest firmware to address known vulnerabilities.
- Implement secure coding practices to prevent similar permission bypass issues.
Patching and Updates
- Google provides security patches and updates for Android devices to address CVE-2020-27023.