Check Point Advisories

SSH over Non Standard Ports

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1307
Date Published:	1 Feb 2005
Severity:	Low
Last Updated:	Monday 31 March, 2014
Source:	CVE-2001-0361
Protection Provided by:	Security Gateway R75 and above R71 R70 VPN-1 NGX R65 VSX NGX R65
Who is Vulnerable?	Computer users
Vulnerability Description	SSH is a network protocol that uses built-in encryption that prevents packet inspection. Network attacks can be encrypted inside SSH traffic to avoid detection.

Protection Overview

When this protection is activated, IPS can detect or block all SSH traffic sent over ports other than TCP port 22 (Block All SSH Versions). Alternatively, you can choose to detect or block only older versions of SSH, which are inherently less secure (Run SSH Older Versions Control). 

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, Protection tab and select the version of your choice.

Security Gateway R70 / R71 / R75 and above

In the IPS tab, click Protections and find the SSH over Non Standard Ports protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name: SSH over Non Standard Ports

Attack Information: SSH Connection on a Non-Standard Port