CVE-2022-26446 Explained : Impact and Mitigation
Learn about CVE-2022-26446, a vulnerability in Modem 4G RRC in multiple MediaTek products, allowing for remote denial of service attacks. Find mitigation steps and patch information.
This article provides detailed information about CVE-2022-26446, a vulnerability impacting Modem 4G RRC in certain MediaTek products.
Understanding CVE-2022-26446
This section will cover what CVE-2022-26446 is and its potential impact.
What is CVE-2022-26446?
CVE-2022-26446 is a vulnerability in Modem 4G RRC that could result in a system crash due to improper input validation. Exploitation of this vulnerability could lead to a remote denial of service attack without requiring user interaction.
The Impact of CVE-2022-26446
The vulnerability could allow an attacker to trigger a system crash in affected MediaTek products, potentially resulting in a denial of service condition.
Technical Details of CVE-2022-26446
In this section, we will delve into the specific technical aspects of CVE-2022-26446.
Vulnerability Description
The vulnerability arises from improper input validation in Modem 4G RRC, which could be exploited by concatenating improper SIB12 (CMAS message) in MediaTek products.
Affected Systems and Versions
MediaTek products including MT2731, MT6739, MT6771, and others running Modem LR12A, LR13, NR15, and NR16 versions are affected by this vulnerability.
Exploitation Mechanism
Exploiting this vulnerability does not require user interaction. An attacker can trigger a remote denial of service attack by sending a malicious payload to the Modem 4G RRC.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent exploitation of CVE-2022-26446.
Immediate Steps to Take
Users are advised to apply the provided patch ID: MOLY00867883 to address the vulnerability in MediaTek products. It is essential to keep systems up to date to prevent exploitation.
Long-Term Security Practices
Implementing robust input validation mechanisms and regular security updates can help mitigate the risk of similar vulnerabilities in the future.
Patching and Updates
Regularly check for security bulletins and updates from MediaTek to ensure that the latest patches are applied to protect against known vulnerabilities.