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Update Protection against Sun Java System Web Server Digest Authorization Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2010-037
Date Published:
Severity:
Source: SecurityFocus Bugtraq ID: 37896
Protection Provided by: Security Gateway
  • R70
VPN-1
  • NGX R65
VSX
  • NGX R65
Who is Vulnerable?
Sun Microsystems Java System Web Proxy Server 4.0 prior to SP13
Sun Microsystems Java System Web Server 6.1 prior to SP12
Sun Microsystems Java System Web Server 7.0 prior to Update Release 8
Vulnerability Description
A buffer overflow vulnerability has been reported in Sun Java System Web Server. Sun Microsystems' Java System Web Server is a high performance web server for medium to large business applications. A remote attacker may exploit this vulnerability to execute arbitrary code on a target server.
Update/Patch Available
Apply patches:
Sun
Vulnerability Details
The vulnerability is due to insufficient boundary checks by the Sun Java Web Server when processing malformed HTTP requests. A remote attacker may trigger this vulnerability by sending a specially crafted HTTP request to a target server. Successful exploitation of this issue would allow the attacker to inject and execute arbitrary code on the affected server.

Protection Overview
This protection will detect and block malformed HTTP requests sent to the vulnerable server.

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

Security Gateway R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Web Servers > Sun Java System.
2. In the right pane, double-click the Sun Java System Web Server Digest Authorization Buffer Overflow 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: Sun Java System Web Server digest authorization buffer overflow

VPN-1 NGX R65 & VPN-1 VSX NGX R65

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

Sun Java System Web Server Digest Authorization Buffer Overflow

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: Sun Java System Web Server digest authorization buffer overflow