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Update Protection against Adobe Flash Media Server Resource Exhaustion Denial of Service Vulnerability (APSB09-18)

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Check Point Reference: CPAI-2009-255
Date Published:
Severity:
Source: Adobe Security Bulletin - APSB09-18
Industry Reference(s): CVE-2009-3791
Protection Provided by: Security Gateway
  • R70
Who is Vulnerable?
Microsoft Windows 2000 SP4
Windows Server 2003 SP2
Windows Server 2003 for x64-based Systems SP2
Windows Server 2003 with SP2 (Itanium)
Windows Server 2008 for x64-based Systems
Vulnerability Description
A resource exhaustion vulnerability has been discovered in Adobe Flash Media Server (FMS). Flash Media Server (FMS) is an application server for Flash-based applications. Successful exploitation of this issue will create a denial of service condition, causing the application to become non-responsive.
Update/Patch Available
Apply patches:
Adobe Security Bulletin - APSB09-18
Vulnerability Details
The vulnerability is due to resource exhaustion in the Adobe Flash Media Server. A remote attacker may exploit this issue by sending a specially crafted RTMP packet to the vulnerable server. Successful exploitation will create a denial of service condition, causing the application to become non-responsive.

Protection Overview
This protection will detect and block attempts to transfer malformed RTMP packets sent to the vulnerable server.

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 R70

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > Application Intelligence > Adobe Products .
2. In the right pane, double-click the Adobe Flash Media Server Resource Exhaustion Denial of Service (APSB09-18) 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: Adobe Products Violation
Attack Information: Adobe Flash Media Server resource exhaustion denial of service (APSB09-18)