CVE-2023-47254 : Exploit Details and Defense Strategies

A critical OS Command Injection vulnerability has been identified in the CLI interface on DrayTek Vigor167 version 5.2.2, potentially enabling remote attackers to execute malicious system commands and gain escalated privileges through any account created within the web interface.

Understanding CVE-2023-47254

This section will outline the critical information related to CVE-2023-47254.

What is CVE-2023-47254?

CVE-2023-47254 is an OS Command Injection vulnerability found in DrayTek Vigor167 version 5.2.2, allowing threat actors to execute arbitrary system commands and elevate their privileges by utilizing any account established within the web interface.

The Impact of CVE-2023-47254

The impact of this vulnerability is severe as it enables unauthorized users to run malicious commands, potentially leading to system compromise, data theft, and further exploitation of the affected device.

Technical Details of CVE-2023-47254

In this section, we will delve into the technical aspects of CVE-2023-47254.

Vulnerability Description

The vulnerability arises due to improper input validation in the CLI interface of DrayTek Vigor167 version 5.2.2, allowing attackers to inject and execute arbitrary commands on the target system.

Affected Systems and Versions

The OS Command Injection flaw impacts DrayTek Vigor167 version 5.2.2. It is crucial for users of this specific version to take immediate action to mitigate the risk.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by creating an account within the web interface and leveraging it to execute malicious commands, potentially leading to a complete system compromise.

Mitigation and Prevention

This section will provide guidance on how to mitigate and prevent the exploitation of CVE-2023-47254.

Immediate Steps to Take

Users are advised to update to a patched version of DrayTek Vigor167 to remediate the vulnerability. Additionally, restricting access to the CLI interface and closely monitoring system activity can help mitigate risks.

Long-Term Security Practices

To enhance long-term security, practicing network segmentation, implementing strong access controls, and conducting regular security audits are recommended.

Patching and Updates

Regularly applying security patches and updates provided by the vendor is crucial to safeguard against known vulnerabilities like CVE-2023-47254.