Home Page | Skip to Navigation | Skip to Content | Skip to Search | Skip to Footer

Update Protection against Microsoft IIS Directory Authentication Bypass Vulnerability (MS10-065)

Subscribe

Check Point Reference: CPAI-2010-262
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS10-065
Industry Reference(s): CVE-2010-2731
Protection Provided by: Security Gateway
  • R75
  • R71
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
InterSpect
  • NGX
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Internet Information Services 5.1 on Windows XP SP3
Vulnerability Description
An elevation of privilege vulnerability has been reported in Microsoft Internet Information Services (IIS). IIS is a collection of Internet services packaged with several versions of the Windows operating system. A remote attacker could use this issue to bypass the need to authenticate to access restricted resources.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS10-065 
Vulnerability Details
The vulnerability is due to the way IIS parses specially crafted URLs. An attacker may exploit this issue by via a specially crafted URL to bypass directory based basic authentication. Successful exploitation of this vulnerability would allow the attacker to access and execute resources that should require authentication.

Protection Overview
This protection will detect and block malformed URLs attempting to exploit this vulnerability. 

In order for the protection to be activated, update your Security Gateway/VPN-1 product to the latest SmartDefense/IPS update. For information on how to update SmartDefense/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 > Web Servers> IIS.
2. In the right pane, double-click the Microsoft IIS Directory Authentication Bypass (MS10-065) 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: Web Server Enforcement Violation
Attack Information: Microsoft IIS directory authentication bypass (MS10-065)

Security Gateway: R70/R71

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Web Servers> IIS.
2. In the right pane, double-click the Microsoft IIS Directory Authentication Bypass (MS10-065) 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: Web Server Enforcement Violation
Attack Information: Microsoft IIS directory authentication bypass (MS10-065)

VPN-1 NGX R65 & VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > Web Servers > IIS.
2. Select the following:

Microsoft IIS Directory Authentication Bypass (MS10-065)

3. In the configuration pane, under Settings > Mode, check Active.
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: Web Server Enforcement Violation
Attack Information: Microsoft IIS directory authentication bypass (MS10-065)

InterSpect NGX

How Can I Protect My Network?
1. In the left pane, select Profiles > Default Protection and select the SmartDefense page of the profile. 
2. In the SmartDefense tree, click Application Intelligence > Web Servers> IIS.
3. Select the following:

Microsoft IIS Directory Authentication Bypass (MS10-065)

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: Web Server Enforcement Violation
Attack Information: Microsoft IIS directory authentication bypass (MS10-065)

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?
1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Web Intelligence > WWW 2, and select the IIS Attacks protection group
3. Click Microsoft IIS Directory Authentication Bypass (MS10-065) (IPS-1 NGX R65 only).
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?
Upon attack, the following entries will be logged:

 
Alert Name: Attacks against IIS web servers
Description: Microsoft Internet Information Services Directory Authentication Bypass (MS10-065)