Check Point Advisories

Security Best Practice: Blocking TeamViewer

Check Point Reference:	SBP-2008-08
Date Published:	27 Jul 2008
Severity:	Medium
Last Updated:	Sunday 03 August, 2008
Source:	SmartDefense Research Center
Protection Provided by:
Who is Vulnerable?	TeamViewer users
Vulnerability Description	TeamViewer is a cross-platform remote control application that allows the user to take complete control over a computer anywhere on the Internet, even through firewalls. TeamViewer also has file-sharing and chat capabilities. The use of TeamViewer may circumvent the organizational security policy.
Vulnerability Details	Some organizations prefer to prevent their employees from using remote control applications, since many of these applications are prone to multiple vulnerabilities. Also, remote connections can potentially take up a lot of bandwidth, because these sessions transmit picture, mouse, and keyboard data from the remote computer. In addition, remote connections capabilities such as file transfer are a potential source of virus and worm infections.