CVE-2022-20461 Explained : Impact and Mitigation
Learn about CVE-2022-20461, a vulnerability in Android leading to local privilege escalation in BLE without user interaction. Find out the impact, affected systems, and mitigation steps.
A vulnerability in Android could allow for local privilege escalation without the need for user interaction.
Understanding CVE-2022-20461
This section will cover what CVE-2022-20461 is, its impact, technical details, and how to mitigate the risk.
What is CVE-2022-20461?
The vulnerability resides in 'pinReplyNative' of 'com_android_bluetooth_btservice_AdapterService.cpp' in Android. It involves an out-of-bounds read due to type confusion, potentially leading to local privilege escalation in BLE.
The Impact of CVE-2022-20461
CVE-2022-20461 could result in an elevation of privilege on affected Android devices without requiring any additional execution privileges. This poses a security risk as an attacker could exploit the vulnerability without user interaction.
Technical Details of CVE-2022-20461
Let's delve into the specifics of the vulnerability, including the description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerability allows for an out-of-bounds read, leading to local privilege escalation in BLE on Android systems.
Affected Systems and Versions
The issue impacts Android versions 10, 11, 12, 12L, and 13, potentially exposing devices running these versions to the privilege escalation risk.
Exploitation Mechanism
Attackers can exploit the vulnerability to escalate privileges locally in Bluetooth Low Energy (BLE) communications without requiring user interaction.
Mitigation and Prevention
Learn how to protect your Android devices from CVE-2022-20461 and minimize the risk of exploitation.
Immediate Steps to Take
It is crucial to apply security patches promptly and follow best security practices to reduce the risk of exploitation on vulnerable devices.
Long-Term Security Practices
Implementing robust security measures, such as regular software updates, security monitoring, and access controls, can enhance the overall security posture of your Android devices.
Patching and Updates
Stay informed about security updates released by Android to address CVE-2022-20461 and other vulnerabilities, ensuring your devices are protected against known threats.