CVE-2023-29803 : Security Advisory and Response

A command injection vulnerability was found in TOTOLINK X18 V9.1.0cu.2024_B20220329, allowing malicious actors to execute commands via the pid parameter in the disconnectVPN function.

Understanding CVE-2023-29803

What is CVE-2023-29803?

CVE-2023-29803 is a command injection vulnerability discovered in TOTOLINK X18 V9.1.0cu.2024_B20220329, enabling unauthorized command execution through the pid parameter in the disconnectVPN function.

The Impact of CVE-2023-29803

This vulnerability could be exploited by threat actors to execute arbitrary commands on affected systems, leading to potential data breaches, system compromise, and other malicious activities.

Technical Details of CVE-2023-29803

Vulnerability Description

The vulnerability arises due to improper input validation in the disconnectVPN function of TOTOLINK X18 V9.1.0cu.2024_B20220329, allowing attackers to inject and execute arbitrary commands.

Affected Systems and Versions

The affected system is TOTOLINK X18 V9.1.0cu.2024_B20220329. All versions are vulnerable to this command injection flaw.

Exploitation Mechanism

Malicious actors exploit this vulnerability by injecting malicious commands through the pid parameter in the disconnectVPN function, gaining unauthorized access to the system.

Mitigation and Prevention

Immediate Steps to Take

To mitigate the CVE-2023-29803 vulnerability, users are advised to avoid untrusted input in the pid parameter of the disconnectVPN function, implement input validation mechanisms, and restrict access to sensitive functions.

Long-Term Security Practices

In the long term, organizations should follow secure coding practices, regularly update firmware and software components, conduct security assessments, and educate developers and users about secure coding practices.

Patching and Updates

It is crucial to apply patches and updates provided by the vendor promptly to address the CVE-2023-29803 vulnerability and enhance the overall security posture of the system.