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Update Protection against Microsoft Outlook Web Access Cross-Site Scripting (MS05-029)

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Check Point Reference: CPAI-2005-257
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory: SA15697
Industry Reference(s): CVE-2005-0563
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Microsoft Exchange Server 5.5
Vulnerability Description
Microsoft Outlook Web Access (OWA) is a component of Microsoft Exchange Server. OWA allows authorized users to send and receive email, manage a calendar, and perform other functions using a web browser. OWA utilizes HTML, CSS and scripting techniques to present the user interface through the web browser. OWA is primarily implemented using Active Server Page (ASP), served using the web server component of Microsoft Internet Information Server (IIS). The dynamically generated web pages also contain client-side script code to implement mail message administration functionality.
Vulnerability Details
A cross-site scripting vulnerability exists in the Outlook Web Access component of Exchange Server 5.5. The flaw is caused by insufficient sanitization of user's email messages. A malicious user can leverage this flaw to inject and execute script code in the security context of the current user email account.
A successful attack exploiting this vulnerability can inject malicious script code into the OWA session. An attacker can read or delete email, access the user's contact list and other operations on the user's mail account. The attacker can fully control the compromised mail account. The malicious script could also take actions on the user's computer in the security context of the OWA web site.

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, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > Mail > SMTP.
2. In the right pane, double-click the Microsoft Outlook Web Access Cross-Site Scripting (MS05-029) protection.
3. In the Protection Details window, click on Edit. Choose the protection's Action (Override IPS Policy with: Prevent/Detect), and apply Additional Settings.
4. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: SMTP Protection Violation
Attack Information: Microsoft Outlook Web Access cross-site scripting (MS05-029)