Check Point Advisories

ISC DHCP Server Denial of Service And Buffer Overflow (CVE-2004-0460; CVE-2006-3122; CVE-2010-2156)

Check Point Reference: CPAI-2010-443
Date Published: 1 Aug 2010
Severity: Critical
Last Updated: 24 Oct 2017
Industry Reference:CVE-2004-0460
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable?
Vulnerability Description The Internet Software Consortium (ISC) DHCP server is a popular and widely used implementations of the server side of the DHCP protocol. The Dynamic Host Configuration Protocol (DHCP) protocol is used to centrally manage and automate the assignment of IP addresses on a network.A denial of service and a buffer overflow vulnerability has been reported in the ISC DHCP server. Both vulnerabilities involve buffer overflows and allow a denial of service attack to be launched on the vulnerable software. It may also be possible to exploit the vulnerabilities for remote code execution. Successful exploitation of these vulnerabilities would terminate the DHCP server process and result in a denial of service, a memory buffer overflow or a memory access violation.

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 / R76 / R75

  1. In the IPS tab, click Protections and find the ISC DHCP Server Denial of Service And Buffer Overflow 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:  DHCP Protection Violation.
Attack Information:  ISC DHCP Server denial of service and buffer overflow

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