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

Update Protection against HP OpenView Network Node Manager ovalarm.exe Accept-Language Buffer Overflow Vulnerability

Subscribe

Check Point Reference: CPAI-2009-314
Date Published:
Severity:
Source: Secunia Advisory: 37665
Industry Reference(s):

CVE-2009-4179
Protection Provided by: Security Gateway
  • R70
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
HP OpenView Network Node Manager (OV NNM) 7.01
HP OpenView Network Node Manager (OV NNM) 7.51
HP OpenView Network Node Manager (OV NNM) 7.53
Vulnerability Description
A stack buffer overflow exists in HP OpenView Network Node Manager (NNM) CGI program ovalarm.exe. The vulnerability is due to a boundary error when processing Accept-Language HTTP header and the OvAcceptLang cookie value in a crafted HTTP request. A remote unauthenticated attacker can exploit this vulnerability by sending a crafted HTTP request to a target server.
Update/Patch Available
HP has released an advisory addressing this vulnerability:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01950877
Vulnerability Details
The vulnerability exists due to insufficient boundary checking when handling the Accept-Language HTTP header and OvAcceptLang Cookie values.

Protection Overview

This protection will detect and block HTTP requests with Accept-Language parameters whose length exceeds a threshold and requests for the HP OpenView CGI binary Toolbar.exe with long cookie parameters.

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 > HP Products.
2. In the right pane, double-click the HP OpenView Network Node Manager Accept-Language 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: HP Products Protection Violation
Attack information: HP OpenView Network Node Manager Accept-Language Buffer Overflow

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 CGI Attacks protection group.
3. Click

HP OpenView Network Node Manager Accept-Language Buffer Overflow (IPS-1 NGX R65 only)

and

HP OpenView Network Node Manager Multiple Parameters Buffer Overflow (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: WWW/CGI Attacks Protection Group
Description: HP OpenView Network Node Manager Accept-Language Buffer Overflow

Alert Name: WWW/CGI Attacks Protection Group
Description: HP OpenView Network Node Manager Multiple Parameters Buffer Overflow