CVE-2021-0549 : Exploit Details and Defense Strategies
Learn about CVE-2021-0549, an information disclosure vulnerability in Android-11 allowing Bluetooth MAC address leaks. Find details, impact, and mitigation steps.
This article provides details about CVE-2021-0549, which involves an information disclosure vulnerability in Android-11 that could lead to the leakage of Bluetooth MAC addresses.
Understanding CVE-2021-0549
CVE-2021-0549 is a vulnerability in Android-11 that allows for the disclosure of Bluetooth MAC addresses, potentially resulting in local information exposure.
What is CVE-2021-0549?
In the sspRequestCallback of BondStateMachine.java, a leak of Bluetooth MAC addresses occurs due to log information disclosure. This can lead to local information exposure, requiring system execution privileges for exploitation. No user interaction is necessary for the attack.
The Impact of CVE-2021-0549
The vulnerability could result in the leakage of sensitive Bluetooth MAC addresses, leading to local information disclosure on affected systems running Android-11.
Technical Details of CVE-2021-0549
The technical details of CVE-2021-0549 include:
Vulnerability Description
The vulnerability arises from a possible leak of Bluetooth MAC addresses through log information disclosure in the sspRequestCallback of BondStateMachine.java.
Affected Systems and Versions
The affected system is Android-11, specifically the versions where the issue exists.
Exploitation Mechanism
The exploitation of CVE-2021-0549 can occur without the need for user interaction, requiring only system execution privileges for successful attacks.
Mitigation and Prevention
To address CVE-2021-0549, consider the following steps:
Immediate Steps to Take
- Apply patches provided by the vendor to mitigate the vulnerability.
- Monitor for any unusual Bluetooth-related activities on the network.
Long-Term Security Practices
- Regularly update Android systems to ensure they are protected against known vulnerabilities.
- Implement network segmentation to limit the impact of potential information disclosure.
Patching and Updates
Stay informed about security bulletins and updates from the Android platform to address security vulnerabilities like CVE-2021-0549.