CVE-2023-38937 : Vulnerability Insights and Analysis

A stack overflow vulnerability was found in Tenda AC series routers. This article delves into the details of CVE-2023-38937 and provides insights into its impact, technical details, and mitigation strategies.

Understanding CVE-2023-38937

This section explores the specifics of the CVE-2023-38937 vulnerability.

What is CVE-2023-38937?

CVE-2023-38937 affects various Tenda AC series routers, leading to a stack overflow via a specific parameter.

The Impact of CVE-2023-38937

The vulnerability could potentially allow threat actors to execute arbitrary code or crash the affected devices, posing a severe security risk.

Technical Details of CVE-2023-38937

Here, we dig deeper into the technical aspects of CVE-2023-38937.

Vulnerability Description

The stack overflow vulnerability arises due to improper handling of input parameters in the formSetVirtualSer function, present in multiple Tenda AC router models.

Affected Systems and Versions

The following Tenda router models are confirmed to be affected: AC10 V1.0 V15.03.06.23, AC1206 V15.03.06.23, AC8 v4 V16.03.34.06, AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, AC5 V1.0 V15.03.06.28, AC9 V3.0 V15.03.06.42_multi, and AC10 v4.0 V16.03.10.13.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted requests containing a malicious payload to trigger the stack overflow and potentially gain unauthorized access.

Mitigation and Prevention

This section provides guidance on addressing CVE-2023-38937 and enhancing overall security.

Immediate Steps to Take

Users and administrators are advised to apply security patches from Tenda or implement workarounds provided by the vendor to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly updating router firmware, configuring proper access controls, and monitoring network traffic are crucial for maintaining a secure IT environment.

Patching and Updates

Stay informed about security updates released by Tenda for the affected router models and promptly apply patches to eliminate the vulnerability.