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Update Protection against Host Integration Server RPC Buffer Overflow Vulnerability (MS08-059)

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Check Point Reference: CPAI-2008-149
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-059
Industry Reference(s): CVE-2008-3466
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
InterSpect
  • NGX
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Microsoft Host Integration Server 2000 SP2
Microsoft Host Integration Server 2004
Microsoft Host Integration Server 2004 SP1
Microsoft Host Integration Server 2006
Vulnerability Description
A remote code execution vulnerability has been reported in the SNA Remote Procedure Call (RPC) service for Host Integration Server. Remote Procedure Call (RPC) is a protocol that a program can use to request a service from another program which is located on another computer in a network. Microsoft Host Integration Server (HIS) is a gateway application that provides host access and integration, extending Microsoft Windows to other systems by integrating mission-critical host applications, data sources, messaging, and security systems. An attacker may exploit this issue to take complete control of an affected system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-059
Vulnerability Details
The vulnerability is due to an error in the SNA RPC service that fails to properly authenticate specially crafted RPC requests. A remote attacker can exploit this issue by specially crafting a malicious RPC request and sending it to the target service. Successful exploitation could allow the attacker to execute arbitrary code on an affected system.

Protection Overview
By enabling this protection, SmartDefense will detect and block remote access to the vulnerable RPC interface.

In order for the protection to be activated, update your VPN-1/InterSpect/Connectra product to the latest SmartDefense update. For information on how to update SmartDefense, 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.

VPN-1 NGX R65 & R62

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > MS-RPC > MS-RPC over CIFS > Block Host Integration Server RPC Remote Code Execution (MS08-059).
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

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

Attack Name: MS-RPC Enforcement Violation
Attack Information: Host Integration Server RPC remote code execution (MS08-059)

VPN-1 NGX R61 & R60

How Can I Protect My Network?
1. In the SmartDefense tree, click Application Intelligence > MS-RPC > MS-RPC over CIFS.
2. Select the following protection:

Block Host Integration Server RPC Remote Code Execution (MS08-059)

3. Install security policy on all modules.

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

Attack Name: MS-RPC Enforcement Violation
Attack Information: Host Integration Server RPC remote code execution (MS08-059)

VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Application Intelligence > MS-RPC > MS-RPC over CIFS > Block Host Integration Server RPC Remote Code Execution (MS08-059).
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

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

Attack Name: MS-RPC Enforcement Violation
Attack Information: Host Integration Server RPC remote code execution (MS08-059)

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 > MS-RPC > MS-RPC over CIFS.
3. Select the following protection:

Block Host Integration Server RPC Remote Code Execution (MS08-059)

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: MS-RPC Enforcement Violation
Attack Information: Host Integration Server RPC remote code execution (MS08-059)

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 Application Intelligence > MSRPC, and select the Host Integration Server (snarpcsv) protection group.  
3. Click Host Integration Service (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: msrpc_snarpcsv
Description: snarpcsv_alert