#VU12671 Privilege escalation in CyberGhost - CVE-2018-10646
Published: May 15, 2018
Vulnerability identifier: #VU12671
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-10646
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
CyberGhost
CyberGhost
Software vendor:
CyberGhost
CyberGhost
Description
The vulnerability allows a remote attacker to execute arbitrary code with elevated privileges on the target system.
The weakness exists in the "CG6Service" service due to establishing an NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The ConnectToVpnServer method accepts a connectionParams argument that provides attacker control of the OpenVpn command line. A remote attacker can specify a dynamic library plugin that should run for every new VPN connection attempt and execute arbitrary code with root privileges.
Successful exploitation of he vulnerability may result in system compromise.
The weakness exists in the "CG6Service" service due to establishing an NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The ConnectToVpnServer method accepts a connectionParams argument that provides attacker control of the OpenVpn command line. A remote attacker can specify a dynamic library plugin that should run for every new VPN connection attempt and execute arbitrary code with root privileges.
Successful exploitation of he vulnerability may result in system compromise.
Remediation
Install update from vendor's website.