CVE-2022-21784 : Exploit Details and Defense Strategies
Learn about CVE-2022-21784, a critical vulnerability in MediaTek WLAN driver affecting Android 11.0 and 12.0 devices. Understand the impact, mitigation steps, and recommended security practices.
This article provides detailed information about CVE-2022-21784, a vulnerability in MediaTek WLAN driver that could lead to a local escalation of privilege without user interaction.
Understanding CVE-2022-21784
CVE-2022-21784 is a security vulnerability found in MediaTek WLAN driver, affecting various MediaTek products running Android 11.0 and 12.0.
What is CVE-2022-21784?
In WLAN driver, there is a possible out-of-bounds write due to a missing bounds check, which can enable local escalation of privilege with System execution privileges required. No user interaction is necessary for exploitation.
The Impact of CVE-2022-21784
This vulnerability could allow an attacker to escalate privileges locally on affected devices, potentially compromising sensitive information and carrying out unauthorized actions.
Technical Details of CVE-2022-21784
Let's dive into the technical aspects of CVE-2022-21784 to understand its implications further.
Vulnerability Description
The vulnerability arises from a missing bounds check in the WLAN driver, enabling an attacker to write outside the intended memory locations.
Affected Systems and Versions
Products impacted include MT6761, MT6779, MT6781, and several others running Android 11.0 and 12.0. Ensure your devices are updated with the latest patches.
Exploitation Mechanism
The exploit does not require any user interaction, making it easier for threat actors to leverage the vulnerability remotely.
Mitigation and Prevention
To secure your systems against CVE-2022-21784, follow the necessary mitigation strategies to reduce the vulnerability exposure.
Immediate Steps to Take
Immediately apply the provided patch ID: ALPS06704526 to address the vulnerability and prevent potential privilege escalation attacks.
Long-Term Security Practices
Implement robust security measures and regularly update your devices with the latest security patches to protect against known vulnerabilities.
Patching and Updates
Stay informed about security bulletins and updates from MediaTek to stay ahead of potential threats.