TPTI-09-10: HP OpenView NNM webappmon.exe CGI Host Header Buffer Overflow Vulnerability
http://dvlabs.tippingpoint.com/advisory/TPTI-09-10
December 9, 2009

-- CVE ID:
CVE-2009-4177

-- Affected Vendors:
Hewlett-Packard

-- Affected Products:
Hewlett-Packard OpenView Network Node Manager

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 8333. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Hewlett-Packard OpenView Network Node
Manager. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the webappmon.exe CGI application. This
process copies the Host header from HTTP requests into a fixed-length
buffer located in the .DATA section via a call to strcat(). By
specifying a string length within a certain range this buffer can be
overflowed leading to arbitrary code execution.

-- Vendor Response:
Hewlett-Packard has issued an update to correct this vulnerability. More
details can be found at:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01950877

-- Disclosure Timeline:
2009-07-16 - Vulnerability reported to vendor
2009-12-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Aaron Portnoy, TippingPoint DVLabs