TippingPoint Zero Day Initiative

Hewlett-Packard OpenView NNM nnmRptConfig.exe Template Variable vsprintf Overflow Vulnerability

ZDI-09-096: December 9th, 2009


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8332. For further product information on the TippingPoint IPS:

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 nnmRptConfig.exe CGI executable accessible via the IIS web server listening by default on TCP port 80. While parsing POST variables, the vulnerable process copies the contents of the Template parameter into a fixed length stack buffer using a vsprintf() call. By supplying a large enough value this buffer can be overflown leading to arbitrary code execution.

Vendor Response

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

Disclosure Timeline

    2009-07-14 - Vulnerability reported to vendor
    2009-12-09 - Coordinated public release of advisory


This vulnerability was discovered by: