Executive Summary

This vulnerability exists in the Beward N100 H.264 VGA IP Camera version M2.1.6.04C014, where an authenticated attacker can exploit improper input validation of the 'READ.filePath' parameter in the fileread script or SendCGICMD API. By supplying absolute file paths, the attacker can read arbitrary system files on the device, such as /etc/passwd and /etc/issue, potentially disclosing sensitive system information. [1, 2]

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Impact Analysis

If exploited, this vulnerability allows an attacker with valid authentication credentials to read sensitive system files on the IP camera. This can lead to disclosure of system user information and system identification details, which may facilitate further attacks or unauthorized access to the device or network. [1, 2]

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Detection Guidance

This vulnerability can be detected by attempting to access the fileread CGI script or SendCGICMD API on the Beward N100 H.264 VGA IP Camera with valid authentication credentials. For example, using curl with basic authentication to request sensitive files like /etc/passwd can confirm the vulnerability. A sample command is: curl -u admin:admin "http://<camera-ip>/cgi-bin/fileread?READ.filePath=/etc/passwd". If the contents of the file are returned, the device is vulnerable. [1, 2]

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Mitigation Strategies

Immediate mitigation steps include restricting access to the camera's web interface to trusted users only, changing default credentials to strong, unique passwords, and disabling or restricting access to the fileread CGI script or SendCGICMD API if possible. Additionally, monitor and limit network access to the device to prevent unauthorized authenticated access. Since the vendor did not respond to disclosure, consider isolating the device from untrusted networks until a patch or update is available. [1, 2]

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