Check Point Advisories

Novell eDirectory HTTP Request Content-Length Heap Buffer Overflow (CVE-2008-4478)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-337
Date Published:	17 Dec 2009
Severity:	Critical
Last Updated:	Thursday 17 December, 2009
Source:
Industry Reference:	CVE-2008-4478
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Novell eDirectory is an X.500 and LDAP compatible directory server intended for use as a part of an identity management solution. The product is made available for multiple platforms including NetWare, Unix-like systems, and Windows. There exists a heap buffer overflow vulnerability in Novell eDirectory. The flaw is in the SOAP-HTTP protocol stack due to improper processing of the Content-Length header value. Remote attackers could exploit this vulnerability by sending SOAP-HTTP requests with specially crafted Content-Length value. Successful exploitation would allow for arbitrary code injection and execution with the privileges of the server process. In a sophisticated attack case where code injection is successful, the behavior of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the affected service. In an attack case where code injection is not successful, the affected service may terminate abnormally.

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 Novell eDirectory HTTP Request Content-Length Heap Buffer Overflow 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: Web Server Enforcement Violation.
Attack Information: Novell eDirectory HTTP request Content-Length heap buffer overflow