CVE-2023-30373 : Security Advisory and Response

A stack-based buffer overflow vulnerability has been identified in the function 'xian_pppoe_user' in Tenda AC15 V15.03.05.19.

Understanding CVE-2023-30373

This CVE record highlights a critical security issue in the specified Tenda router model.

What is CVE-2023-30373?

CVE-2023-30373 is a stack-based buffer overflow vulnerability found in the 'xian_pppoe_user' function of Tenda AC15 V15.03.05.19.

The Impact of CVE-2023-30373

This vulnerability could potentially allow attackers to execute arbitrary code or disrupt the normal operation of the affected devices.

Technical Details of CVE-2023-30373

The technical aspects of the CVE-2023-30373 vulnerability are as follows:

Vulnerability Description

The vulnerability exists due to insufficient input validation in the 'xian_pppoe_user' function, leading to a stack-based buffer overflow.

Affected Systems and Versions

The affected system is the Tenda AC15 router model with version V15.03.05.19

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted input to the 'xian_pppoe_user' function, triggering the buffer overflow.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-30373, consider the following steps:

Immediate Steps to Take

Disable remote access to the router if possible
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update the router firmware to the latest version
Implement strong access control measures and restrict unnecessary services

Patching and Updates

Stay informed about security updates released by Tenda for the AC15 V15.03.05.19 model.