CVE-2023-1163 : Security Advisory and Response

This CVE-2023-1163 concerns a vulnerability found in DrayTek Vigor 2960 Web Management Interface mainfunction.cgi that allows for a path traversal attack. The vulnerability is classified as critical and affects versions 1.5.1.4 and 1.5.1.5 of the Vigor 2960 model.

Understanding CVE-2023-1163

This section delves into the details of CVE-2023-1163, including its description, impact, technical aspects, and mitigation strategies.

What is CVE-2023-1163?

The vulnerability in CVE-2023-1163 exists in the DrayTek Vigor 2960 Web Management Interface mainfunction.cgi's getSyslogFile function, allowing for path traversal manipulation. This can be exploited remotely and is classified as critical.

The Impact of CVE-2023-1163

The impact of CVE-2023-1163 is significant as it allows attackers to traverse paths within the system through manipulation of the 'option' argument. This could lead to unauthorized access, data breaches, or further exploitation of the affected system.

Technical Details of CVE-2023-1163

In-depth technical information regarding the vulnerability, affected systems, and exploitation mechanisms are discussed in this section.

Vulnerability Description

The vulnerability in DrayTek Vigor 2960 1.5.1.4/1.5.1.5 allows for path traversal through the getSyslogFile function of the mainfunction.cgi component in the Web Management Interface. Attackers can exploit this remotely to gain unauthorized access.

Affected Systems and Versions

The DrayTek Vigor 2960 models running versions 1.5.1.4 and 1.5.1.5 are affected by this vulnerability. Specifically, the Web Management Interface module is vulnerable to path traversal exploitation.

Exploitation Mechanism

The exploitation of CVE-2023-1163 involves manipulating the 'option' argument in the getSyslogFile function of the mainfunction.cgi file. Attackers can execute this exploit remotely, making it a critical security concern.

Mitigation and Prevention

To safeguard systems from CVE-2023-1163, immediate actions, long-term security practices, and patching procedures are crucial.

Immediate Steps to Take

It is recommended to update the affected DrayTek Vigor 2960 devices to a secure and supported firmware version. Additionally, restricting network access to vulnerable components can help mitigate the risk.

Long-Term Security Practices

Implementing network segmentation, regular security audits, and educating users about safe practices can enhance the overall security posture and prevent similar vulnerabilities in the future.

Patching and Updates

Maintaining up-to-date firmware and security patches provided by the vendor is essential to address known security vulnerabilities like CVE-2023-1163. Regularly monitoring for updates and applying them promptly is key to reducing security risks.