CVE-2022-21780 : What You Need to Know

This article provides insights into CVE-2022-21780, a security vulnerability impacting MediaTek devices running Android 11.0 and 12.0.

Understanding CVE-2022-21780

CVE-2022-21780 is a vulnerability found in the WLAN driver of various MediaTek devices. It can result in an out-of-bounds write issue, potentially leading to local privilege escalation without the need for user interaction.

What is CVE-2022-21780?

The CVE-2022-21780 vulnerability arises from a missing bounds check in the WLAN driver. Exploitation of this flaw could allow an attacker to escalate their privileges on the system without requiring user involvement.

The Impact of CVE-2022-21780

The impact of CVE-2022-21780 is concerning as it enables threat actors to execute malicious activities with elevated privileges on affected devices. This could lead to further exploitation or compromise of user data.

Technical Details of CVE-2022-21780

The technical aspects of CVE-2022-21780 include vulnerability descriptions, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in the WLAN driver allows for an out-of-bounds write, creating an opportunity for privilege escalation within the system.

Affected Systems and Versions

Devices running MediaTek chipsets such as MT6761, MT6779, MT6781, and more, with Android 11.0 and 12.0, are vulnerable to CVE-2022-21780.

Exploitation Mechanism

Exploiting CVE-2022-21780 does not require user interaction, making it a potentially attractive target for threat actors seeking to gain unauthorized access to affected devices.

Mitigation and Prevention

Addressing CVE-2022-21780 involves taking immediate steps and implementing long-term security practices to protect vulnerable devices.

Immediate Steps to Take

Users and organizations should apply the provided patch ID: ALPS06704526 to mitigate the vulnerability and prevent potential privilege escalation attacks.

Long-Term Security Practices

To enhance overall security posture, it is recommended to stay updated with security bulletins, apply relevant patches promptly, and follow secure device usage practices.

Patching and Updates

Regularly checking for security updates from MediaTek and applying patches for known vulnerabilities like CVE-2022-21780 is crucial in maintaining device security and safeguarding against potential threats.