CVE-2022-20103 : Security Advisory and Response

In this article, we will explore CVE-2022-20103, a vulnerability affecting various products of MediaTek, Inc. that could lead to information disclosure.

Understanding CVE-2022-20103

CVE-2022-20103 pertains to an information disclosure vulnerability found in the aee daemon of MediaTek devices running Android 11.0 and 12.0.

What is CVE-2022-20103?

The CVE-2022-20103 vulnerability is due to symbolic link following in the aee daemon, potentially resulting in local information disclosure. The exploitation of this vulnerability does not require any user interaction, but system execution privileges are necessary.

The Impact of CVE-2022-20103

This vulnerability could be exploited by a local attacker to disclose sensitive information without the user's knowledge or consent. It poses a risk to the confidentiality of data stored on affected devices.

Technical Details of CVE-2022-20103

Let's delve into the specifics of CVE-2022-20103 to better understand the potential risks and implications.

Vulnerability Description

The vulnerability arises from improper handling of symbolic links in the aee daemon, enabling an attacker to access sensitive information without authorization.

Affected Systems and Versions

Devices powered by MediaTek processors, including MT6580, MT6739, MT6761, and more, running Android 11.0 and 12.0 are vulnerable to CVE-2022-20103.

Exploitation Mechanism

An attacker with system execution privileges can exploit the vulnerability by leveraging symbolic link following within the aee daemon, leading to unauthorized information disclosure.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-20103, immediate actions and long-term security practices are essential.

Immediate Steps to Take

Users and administrators are advised to apply the provided patch ID

ALPS06383944

and stay informed about security updates from MediaTek.

Long-Term Security Practices

Maintain regular patch management, follow secure coding practices, and restrict access to sensitive system resources to enhance overall security posture.

Patching and Updates

Ensuring timely installation of security patches and firmware updates released by MediaTek is crucial to address known vulnerabilities and bolster the security of MediaTek-powered devices.