Path Traversal in Comfast CF-WR632AX Router

Executive Summary

This vulnerability is a path traversal issue in the Comfast CF-WR632AX router version 2.6.0.1. It exists in the file /usr/bin/webmgnt due to improper handling of the filename argument in a multipart parser. Attackers can manipulate this argument to access files outside intended directories by sending specially crafted requests remotely.

Useful 0 Not Useful 0

Detection Guidance

Check if the router model Comfast CF-WR632AX 2.6.0.1 is present on your network. Inspect HTTP requests to /usr/bin/webmgnt for unusual filename parameters that may indicate path traversal attempts. Review logs for file write operations outside expected directories.

Useful 0 Not Useful 0

Impact Analysis

An attacker could exploit this to read sensitive files on the router, such as configuration files or stored credentials. This may lead to unauthorized access, data leakage, or further compromise of the device. Since the exploit is public, the risk of active exploitation is higher.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability, a path traversal flaw in Comfast CF-WR632AX, could allow remote attackers to access unauthorized files or write arbitrary files on the device. This may lead to data breaches, unauthorized access to sensitive information, or system compromise. For GDPR, it risks violating data protection principles if personal data is exposed. For HIPAA, it could result in unauthorized access to protected health information, violating compliance requirements.

Useful 0 Not Useful 0

Mitigation Strategies

Isolate the affected router from critical networks. Disable remote access to the web management interface if possible. Update the router firmware if a patch is available. Monitor network traffic for suspicious activity targeting /usr/bin/webmgnt.

Useful 0 Not Useful 0