CVE-2022-20099 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-20099, a vulnerability in MediaTek devices that could lead to local escalation of privilege without requiring user interaction. The article covers the impact, technical details, and mitigation steps.

Understanding CVE-2022-20099

CVE-2022-20099 is a vulnerability in MediaTek devices that arises from improper input validation in the aee daemon, potentially allowing an out-of-bounds write operation resulting in local privilege escalation.

What is CVE-2022-20099?

The vulnerability in the aee daemon of MediaTek devices enables attackers to execute code and escalate their privileges locally without any user interaction, posing a significant security risk.

The Impact of CVE-2022-20099

Exploiting CVE-2022-20099 could grant threat actors unauthorized elevated privileges, potentially compromising the affected devices and their data, emphasizing the critical need for prompt mitigation measures.

Technical Details of CVE-2022-20099

The following technical aspects are associated with CVE-2022-20099:

Vulnerability Description

The vulnerability originates in the aee daemon due to improper input validation, allowing threat actors to trigger an out-of-bounds write operation leading to privilege escalation.

Affected Systems and Versions

Devices running MediaTek chipsets such as MT6580, MT6739, MT6761, and others are impacted, specifically those operating on Android 11.0 and 12.0.

Exploitation Mechanism

Exploiting CVE-2022-20099 does not require any user interaction, making it easier for threat actors to execute malicious code and escalate their privileges on vulnerable devices.

Mitigation and Prevention

Protecting systems against CVE-2022-20099 requires immediate actions and long-term security practices to ensure robust defenses. Here are some steps to consider:

Immediate Steps to Take

Apply the provided patch ID: ALPS06296442 to mitigate the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Regularly update devices with the latest security patches and firmware to address security vulnerabilities promptly.

Patching and Updates

Stay informed about security bulletins and updates from MediaTek to deploy necessary patches and enhancements for improved device security.