CVE-2022-25549 : Exploit Details and Defense Strategies

A stack overflow vulnerability was discovered in Tenda AX1806 v1.0.0.1, specifically in the function formSetSysToolDDNS. This vulnerability could be exploited by attackers to trigger a Denial of Service (DoS) attack through the ddnsEn parameter.

Understanding CVE-2022-25549

This section provides insights into the impact and technical details of the CVE-2022-25549 vulnerability.

What is CVE-2022-25549?

The CVE-2022-25549 vulnerability pertains to a stack overflow issue in Tenda AX1806 v1.0.0.1, enabling attackers to execute a DoS attack using the ddnsEn parameter.

The Impact of CVE-2022-25549

The vulnerability could lead to a significant disruption in the availability of affected devices, resulting in service denial.

Technical Details of CVE-2022-25549

Here, we delve into the specifics of the vulnerability.

Vulnerability Description

Tenda AX1806 v1.0.0.1 is prone to a stack overflow found in the function formSetSysToolDDNS, which can be leveraged for DoS attacks by manipulating the ddnsEn parameter.

Affected Systems and Versions

The affected product version is Tenda AX1806 v1.0.0.1. Users with this version are at risk of exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted requests containing malicious data to the vulnerable function, triggering a stack overflow and subsequently causing the DoS condition.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent exploitation of CVE-2022-25549.

Immediate Steps to Take

Users should apply security patches provided by the vendor promptly to address the vulnerability.

Long-Term Security Practices

Implement network segmentation and access controls to reduce the attack surface and limit unauthorized access.
Regularly monitor and analyze network traffic for any suspicious activities that may indicate an ongoing attack.

Patching and Updates

Stay informed about security updates released by Tenda for the AX1806 series and ensure timely application to safeguard against potential threats.