CVE-2022-25431 Explained : Impact and Mitigation

A stack overflow vulnerability was discovered in Tenda AC9 v15.03.2.21, allowing attackers to exploit specific parameters in the Formsetqosband function.

Understanding CVE-2022-25431

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2022-25431.

What is CVE-2022-25431?

The CVE-2022-25431 vulnerability exists in Tenda AC9 v15.03.2.21 due to multiple stack overflows triggered by specific parameters.

The Impact of CVE-2022-25431

The vulnerability allows remote attackers to execute arbitrary code or cause a denial of service by sending malicious requests to the affected device.

Technical Details of CVE-2022-25431

Let's delve deeper into the technical aspects of the vulnerability.

Vulnerability Description

The stack overflow occurs in Tenda AC9 v15.03.2.21 when processing the NPTR, V12, V10, and V11 parameters within the Formsetqosband function.

Affected Systems and Versions

Tenda AC9 v15.03.2.21 is confirmed to be affected by this vulnerability, potentially impacting devices running this specific version.

Exploitation Mechanism

Attackers can exploit CVE-2022-25431 by crafting and sending specially designed requests containing the vulnerable parameters.

Mitigation and Prevention

Protecting your systems from CVE-2022-25431 is crucial to ensure security.

Immediate Steps to Take

Update Tenda AC9 to a secure version that addresses the stack overflow issue.
Implement network-based intrusion prevention systems to detect and block malicious traffic.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security updates released by Tenda for AC9 devices. Apply patches promptly to protect against known vulnerabilities.