TippingPoint Zero Day Initiative
 

Hewlett-Packard OpenView NNM webappmon.exe execvp_nc Remote Code Execution Vulnerability

ZDI-10-137: July 21st, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9271. 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 ov.dll module which is loaded by the webappmon.exe CGI program. This DLL defines a function execvp_nc which unsafely concatenates a controllable command string into a statically allocated stack buffer. By supplying overly large values to variables passed through an HTTP request
a strcat_new can be made to overflow this buffer. An attacker can leverage this to execute arbitrary code under the context of the user running the webserver.

Vendor Response

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

Disclosure Timeline

    2010-02-02 - Vulnerability reported to vendor
    2010-07-21 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous