Command Injection in DrayTek VigorSwitch

Executive Summary

This is an OS command injection vulnerability in multiple DrayTek VigorSwitch models. It exists in the commandTable function due to incomplete filtering of special characters like backticks, newline characters, and single quotes in input parameters. An attacker with valid admin credentials for the device's web interface can exploit this to execute arbitrary commands with root privileges.

Useful 0 Not Useful 0

Detection Guidance

Detection requires checking for vulnerable DrayTek VigorSwitch models via network scanning tools like Nmap to identify affected firmware versions. Inspect web management interface logs for unusual command execution patterns or unauthorized administrative access attempts.

Useful 0 Not Useful 0

Impact Analysis

If you are an administrator of a vulnerable DrayTek VigorSwitch device, an attacker could gain full control over the device, execute malicious commands, and potentially compromise your network. This could lead to data breaches, unauthorized access, or disruption of network services.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, which may violate compliance requirements such as GDPR (data protection) or HIPAA (healthcare data security). Organizations using vulnerable devices may face legal penalties, fines, or reputational damage due to non-compliance.

Useful 0 Not Useful 0

Mitigation Strategies

Immediately update the firmware of all DrayTek VigorSwitch devices to the latest patched version provided by DrayTek. Restrict administrative access to the web management interface by enabling strong authentication and limiting IP access.

Useful 0 Not Useful 0