CVE-2016-5673

Name of the Vulnerable Software and Affected Versions UltraVNC Repeater versions prior to 1300

Description The issue allows remote attackers to obtain open-proxy functionality. This is achieved by using a :: substring in between the IP address and port number, as the software does not restrict destination IP addresses or TCP ports.

Recommendations For versions prior to 1300, restrict destination IP addresses and TCP ports to prevent open-proxy functionality. As a temporary workaround, consider restricting access to the repeater functionality until a patch is available.