Check Point Advisories

Non-SNMP Traffic Over Port 161/162

Check Point Reference: CPAI-2012-076
Date Published: 27 Feb 2012
Severity: N/A
Last Updated: 1 Jan 2000
Protection Provided by:

Security Gateway
R77, R76, R75, R71, R70

Who is Vulnerable?
Vulnerability Description TCP Port 161/162 is normally used to transfer SNMP traffic. Non-SNMP traffic over this port may be used for malicious purposes. Many applications scan for open SNMP ports for malicious purposes. Non-SNMP traffic over port 161/162 may indicate an attempt to pass malicious traffic to or outside the network. There are cases in which certain traffic, although not intended for malicious use, is very unsafe, since it may transfer shellcode which is undetectable by IPS.

Protection Overview

This protection will detect and block non-SNMP traffic over port 161/162.

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, click on Protection tab and select the version of your choice.

Security Gateway R77 / R76 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Non-SNMP Traffic Over Port 161/162 protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  SNMP Protection Violation.
Attack Information:  Non-SNMP traffic over port 161/162

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