An OS command injection vulnerability has been discovered in the Vitogate 300, which can be exploited by malicious users to compromise affected installations

Overview

An OS command injection vulnerability has been discovered in the Vitogate 300, which can be exploited by malicious users to compromise affected installations. Specifically, the /cgi-bin/vitogate.cgi endpoint is affected, when the form JSON parameter is set to form-0-2. The vulnerability stems from the fact that that function at offset 0x21c24 does not properly sanitize supplied input before interpolating it into a format string which gets passed to popen(). Consequently, an authenticated attacker is able to inject arbitrary OS commands and thus gain code execution on affected devices.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.