Check Point Advisories

OpenSSH maxstartup Threshold Connection Exhaustion Denial of Service - ver 2 (CVE-2010-5107)

Check Point Reference: CPAI-2014-1759
Date Published: 27 Oct 2013
Severity: Critical
Last Updated: Thursday 25 December, 2014
Source:
Industry Reference:CVE-2010-5107
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description A denial of service vulnerability exists in the OpenSSH server daemon (sshd). The vulnerability is due to a default configuration that only allows a small number of unauthenticated connections, after which the server will stop accepting any new connections. A remote unauthenticated attacker can exploit this vulnerability by creating a large number of connections to the SSH server, consuming all available connection slots. Repeated exploitation could result in a denial of service condition.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the OpenSSH maxstartup Threshold Connection Exhaustion Denial of Service - ver 2 protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  SSH Protection Violation.
Attack Information:  OpenSSH maxstartup Threshold Connection Exhaustion Denial of Service - ver 2

×
  Feedback
This website uses cookies for its functionality and for analytics and marketing purposes. By continuing to use this website, you agree to the use of cookies. For more information, please read our Cookies Notice.
OK