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Update Protection against HP OpenView Network Node Manager nnmRptConfig.exe schd_select1 Remote Code Execution Vulnerability

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Check Point Reference: CPAI-2011-037
Date Published:
Severity:
Last Updated:
Source: Secunia Advisory: SA40686
Industry Reference(s): CVE-2011-0269
Protection Provided by: Security Gateway
  • R75
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
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 the HP OpenView Network Node Manager (NNM) CGI program nnmRptConfig.exe. The Network Node Manager (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 may exploit this issue to execute arbitrary code on an affected system.
Update/Patch Available
The vendor, HP, has released an advisory addressing this vulnerability.
Vulnerability Details
The vulnerability is due to a boundary error in the HP OpenView Network Node Manager (NNM) CGI program nnmRptconfig.exe when processing HTTP requests which contain a maliciously crafted schd_select1 parameter. A remote attacker can exploit this issue by sending a crafted HTTP request to a target server. Successful exploitation may allow the attacker to inject and execute arbitrary code on a target system.

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

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 taband 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: R75

How Can I Protect My Network?
1. In the IPS tab, click Protections > By Protocol > IPS Software Blade > Application Intelligence > HP Products.
2. In the right pane, double-click the HP OpenView NNM nnmRptConfig.exe schd_select1 Remote Code Execution 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 NNM nnmRptConfig.exe schd_select1 remote code execution

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 nnmRptConfig.exe schd_select1 Remote Code Execution (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 nnmRptConfig.exe schd_select1 Remote Code Execution