Check Point Advisories

Symantec Norton Firewall NBNS response Remote Heap Corruption (CVE-2004-0444)

Vulnerability
Protection

Check Point Reference:	CPAI-2004-143
Date Published:	17 Jan 2010
Severity:	High
Last Updated:	Sunday 07 February, 2016
Source:
Industry Reference:	CVE-2004-0444
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	When Symantec firewalls allow incoming UDP datagrams to port 137, any inbound UDP datagrams with a source port of 137 will be treated as NetBIOS Name Service messages and will be validated and parsed. The Symantec firewall product line is vulnerable to a remote heap corruption attack in the processing of a specially crafted NetBIOS Name Service Response message. If an attacker is able to send a UDP datagram with a source port of 137 to a vulnerable host, and the victim allows incoming UDP datagrams to destination UDP port 137, it is possible for the attacker to trigger a denial of service condition, or execute arbitrary code with kernel privileges. In a simple attack case, the vulnerable system will terminate abnormally (blue screen) with the error message "DRIVER_IRQL_NOT_LESS_OR_EQUAL" in symdns.sys. In a more sophisticated attack, where the traffic is properly crafted, it is possible for the remote attacker to write arbitrary data on the stack and control the process flow, which leads to the execution of arbitrary code on the remote client, running with kernel privileges.

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

In the IPS tab, click Protections and find the Symantec Norton Firewall NBNS response Remote Heap Corruption protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Security Products Enforcement Violation.
Attack Information: Symantec Norton Firewall NBNS response remote heap corruption