CVE-2020-5739

Name of the Vulnerable Software and Affected Versions Grandstream GXP1600 series firmware versions 1.0.4.152 and below

Description The issue allows for authenticated remote command execution. An attacker can add an OpenVPN up script to the phone's VPN settings via the "Additional Settings" field in the web interface. When the VPN's connection is established, the user-defined script is executed with root privileges.

Recommendations For Grandstream GXP1600 series firmware versions 1.0.4.152 and below, consider disabling the OpenVPN up script feature in the web interface until a patch is available. Restrict access to the "Additional Settings" field to minimize the risk of exploitation.