Check Point Advisories

Microsoft IIS Server Crafted ASP Page Buffer Overflow (MS06-034; CVE-2006-0026)

Vulnerability
Protection

Check Point Reference:	CPAI-2006-263
Date Published:	16 Feb 2010
Severity:	High
Last Updated:	Sunday 14 February, 2016
Source:
Industry Reference:	CVE-2006-0026
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Microsoft Internet Information Services (IIS) is a multi-featured server product that ships with all versions of Microsoft Windows 2000, XP and Server 2003. The product provides FTP, SMTP, NNTP and HTTP services. The HTTP component, known as the WWW Publishing Service, allows for the serving of dynamic content, notably in the form of Active Server Pages (ASP) documents. A buffer overflow vulnerability has been identified in the Microsoft Internet Information Services product. The flaw is contained in the component responsible for processing Active Server Pages (ASP) scripts. This vulnerability may be exploited by a user who has the ability to publish ASP pages on a vulnerable host. A successful exploitation may lead to execution of arbitrary code on the target host with limited privileges. Upon exploitation of this vulnerability, resulting in the diversion of the process flow, the affected process will run arbitrary code within its security context. The security context of the process execution largely affects the effectiveness for an attacker in exploiting the target host. Thus, the impact of exploitation may vary. In any case, the behavior of the target host will be dependent on the intention of the attacker. The functionality of the target IIS server will vary depending on the "Application Protection" settings. In some configuration settings the server will continue to function as normal, in other cases the server may stop functioning, resulting 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

In the IPS tab, click Protections and find the Microsoft IIS Server Crafted ASP Page Buffer Overflow (MS06-034) 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: Microsoft IIS Server crafted ASP page buffer overflow (MS06-034)