CVE-2022-26376 Explained : Impact and Mitigation

A memory corruption vulnerability in Asuswrt and Asuswrt-Merlin New Gen could allow attackers to trigger memory corruption via a specially-crafted HTTP request.

Understanding CVE-2022-26376

This CVE identified a memory corruption issue in the httpd unescape functionality of Asuswrt prior to 3.0.0.4.386_48706 and Asuswrt-Merlin New Gen prior to 386.7.

What is CVE-2022-26376?

CVE-2022-26376 is a memory corruption vulnerability that could be exploited by sending a specially-crafted HTTP request, resulting in memory corruption. The affected products include Asuswrt and Asuswrt-Merlin New Gen versions prior to 386.7.

The Impact of CVE-2022-26376

This vulnerability could be exploited by an attacker to trigger memory corruption, potentially leading to further exploitation or disruption of services.

Technical Details of CVE-2022-26376

Vulnerability Description

The vulnerability arises in the httpd unescape functionality of Asuswrt and Asuswrt-Merlin New Gen versions prior to 386.7. A malicious HTTP request can exploit this weakness, causing memory corruption.

Affected Systems and Versions

Vendor: Asuswrt-Merlin
Product: Asuswrt-Merlin New Gen
Vulnerable Versions: prior to 386.7

Exploitation Mechanism

An attacker can send a network request with specific parameters to exploit the vulnerability, leading to memory corruption.

Mitigation and Prevention

Immediate Steps to Take

To mitigate the risk associated with CVE-2022-26376, users are advised to update their Asuswrt and Asuswrt-Merlin New Gen to version 386.7 or later.

Long-Term Security Practices

Regularly monitor for security updates and apply patches promptly to prevent potential exploitation of known vulnerabilities.

Patching and Updates

Stay informed about security advisories from the vendor and apply patches as soon as they are released to keep systems secure.