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Update Protection against HP OpenView Network Node Manager ovsessionmgr.exe Buffer Overflow Vulnerability

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Check Point Reference: CPAI-2009-333
Date Published:
Severity:
Source: Secunia Advisory: SA37665
Industry Reference(s): CVE-2009-4176
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 buffer overflow vulnerability has been reported in HP OpenView Network Node Manager (NNM). The NNM is an HP OpenView product which manages networks. It determines and displays physical and logical connectivity in networks, as well as information referring to protocols running over the network. A remote attacker could exploit this vulnerability to inject and execute arbitrary code on a target server.
Update/Patch Available
Apply patches:
HP Support Document ID: c01950877
Vulnerability Details
The vulnerability is due to a boundary error in ovsessionmgr.exe when processing the 'userid' and 'passwd' parameters sent in an HTTP POST request. To trigger this issue, a remote attacker can send a specially crafted HTTP POST request to a vulnerable server. Successful exploitation may allow the attacker to inject and execute arbitrary code on the target system, or cause the affected process to terminate abnormally.

Protection Overview
This protection will detect and block crafted HTTP POST requests 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 > HP Products.
2. In the right pane, double-click the HP OpenView Network Node Manager ovsessionmgr.exe 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 ovsessionmgr.exe 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 ovsessionmgr.exe 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 ovsessionmgr.exe Buffer Overflow