CVE-2021-0507 : Vulnerability Insights and Analysis
Learn about CVE-2021-0507 affecting Android devices, enabling remote code execution over Bluetooth without user interaction. Find mitigation steps and necessary updates.
Android devices are affected by a vulnerability that allows an attacker to execute remote code over Bluetooth without the need for user interaction. The flaw exists in the handle_rc_metamsg_cmd function in btif_rc.cc.
Understanding CVE-2021-0507
This CVE impacts Android devices and can be exploited for remote code execution over Bluetooth.
What is CVE-2021-0507?
CVE-2021-0507 is a vulnerability in the handle_rc_metamsg_cmd function of Android devices, leading to a potential out-of-bounds write and enabling remote code execution without user interaction.
The Impact of CVE-2021-0507
The vulnerability poses a severe risk as it could allow attackers to remotely execute malicious code over Bluetooth connections without needing additional privileges.
Technical Details of CVE-2021-0507
The following details shed light on the technical aspects of CVE-2021-0507.
Vulnerability Description
The vulnerability arises due to a missing bounds check in the handle_rc_metamsg_cmd function in btif_rc.cc, enabling out-of-bounds writes and potential remote code execution.
Affected Systems and Versions
Android devices running versions Android-11, Android-8.1, Android-9, and Android-10 are susceptible to this vulnerability.
Exploitation Mechanism
Exploiting CVE-2021-0507 requires crafting specific inputs to trigger the out-of-bounds write and execute arbitrary code over Bluetooth.
Mitigation and Prevention
To address CVE-2021-0507, immediate actions and long-term security practices can help mitigate the risk of exploitation.
Immediate Steps to Take
Users and organizations should apply security patches and updates provided by Android to prevent exploitation of this vulnerability.
Long-Term Security Practices
Implementing robust security measures, such as restricting Bluetooth access and monitoring for unauthorized connections, can enhance overall device security.
Patching and Updates
Regularly check for security bulletins and updates from Android to stay informed about security patches addressing CVE-2021-0507.