CVE-2020-5758

Name of the Vulnerable Software and Affected Versions Grandstream UCM6200 series firmware version 1.0.20.23 and below

Description The issue allows an authenticated remote attacker to execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API, specifically via HTTP. This is an OS command injection vulnerability.

Recommendations For Grandstream UCM6200 series firmware version 1.0.20.23 and below, update to a version above 1.0.20.23 to resolve the issue. As a temporary workaround, consider restricting access to the "Old" HTTPS API to minimize the risk of exploitation.