CVE-2022-30477 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2022-30477, a vulnerability found in the Tenda AC Series Router AC18_V15.03.05.19(6318) that could allow for a stack-based buffer overflow in the httpd module when handling /goform/SetClientState request.

Understanding CVE-2022-30477

In this section, we will delve into what CVE-2022-30477 entails, its impact, technical details, and mitigation strategies.

What is CVE-2022-30477?

CVE-2022-30477 is a vulnerability identified in the Tenda AC Series Router AC18_V15.03.05.19(6318) that enables a stack-based buffer overflow in the httpd module during the processing of /goform/SetClientState request.

The Impact of CVE-2022-30477

The vulnerability permits an attacker to potentially execute arbitrary code or crash the router, leading to a denial of service (DoS) condition.

Technical Details of CVE-2022-30477

Let's explore the technical aspects of CVE-2022-30477, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The stack-based buffer overflow occurs in the httpd module of the Tenda AC Series Router AC18_V15.03.05.19(6318) when processing the /goform/SetClientState request, posing a security risk.

Affected Systems and Versions

The vulnerability impacts Tenda AC Series Router AC18_V15.03.05.19(6318) specifically, which is susceptible to the exploit.

Exploitation Mechanism

An attacker can exploit this security flaw by sending a crafted request to the affected httpd module, triggering the stack-based buffer overflow.

Mitigation and Prevention

To safeguard systems from CVE-2022-30477, it is crucial to implement immediate steps and adhere to long-term security practices.

Immediate Steps to Take

Users should apply vendor-released patches promptly, restrict network access to vulnerable devices, and monitor for any unusual network activity.

Long-Term Security Practices

Employ network segmentation, keep software up to date, conduct regular security audits, and educate users on best security practices to mitigate future risks.

Patching and Updates

Regularly check for patches provided by Tenda for the impacted router model, ensuring timely installation to address the vulnerability and enhance system security.