CVE-2023-40802 : Vulnerability Insights and Analysis

A post-authentication heap overflow vulnerability has been identified in Tenda AC23 v16.03.07.45_cn due to inadequate verification of user-entered parameters.

Understanding CVE-2023-40802

This CVE-2023-40802 article provides insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-40802?

The get_parentControl_list_Info function in Tenda AC23 v16.03.07.45_cn lacks proper parameter verification, leading to a heap overflow vulnerability post-authentication.

The Impact of CVE-2023-40802

The vulnerability allows attackers to trigger a heap overflow, potentially leading to remote code execution or denial of service attacks on affected systems.

Technical Details of CVE-2023-40802

Learn more about the specifics of this vulnerability.

Vulnerability Description

The get_parentControl_list_Info function in Tenda AC23 v16.03.07.45_cn is susceptible to a post-authentication heap overflow due to unverified user input.

Affected Systems and Versions

The vulnerability impacts Tenda AC23 v16.03.07.45_cn instances.

Exploitation Mechanism

An attacker can exploit the vulnerability by submitting crafted input, triggering a heap overflow and potentially gaining unauthorized access.

Mitigation and Prevention

Discover the necessary steps to protect your systems from CVE-2023-40802.

Immediate Steps to Take

Implement temporary workarounds, such as network segmentation and access control measures, to minimize the risk of exploitation.

Long-Term Security Practices

Regular security assessments, code reviews, and employee training can enhance overall security posture.

Patching and Updates

Apply security patches released by Tenda or follow vendor recommendations to address the vulnerability.