Public Vulnerability Reports

Hewlett-Packard Network Node Manager Topology Manager Service DoS Vulnerability



HP Network Node Manager is a network mapping and management application that allows administrators to monitor and control their networks. The ovtopmd process listens, in a default configuration, on TCP port 2532. More information can be found on the vendor's site at the following URL.


Remote exploitation of a denial of service vulnerability in Hewlett-Packard's Network Node Manager product allows attackers to crash the ovtopmd process.

The ovtopmd process contains an implementation error, in which it attempts to access an invalid memory address based on data within the TCP stream. By sending a specially crafted request, an attacker can cause the service to crash.


Exploitation allows an attacker to crash the ovtopmd process. In order to exploit this vulnerability, an attacker must be able to establish a session with the service on TCP port 2532. No authentication is required to access the vulnerable code path.


iDefense has confirmed this vulnerability in HP's OpenView Network Node Manager 7.5 with all updates applied as of May 14th, 2007.


Employing firewalls to limit access to the affected service will mitigate exposure to this vulnerability.


Hewlett-Packard has addressed this vulnerability in the HPSBMA02307 (SSRT071420) security bulletin. For more information, visit the following URL.


The Common Vulnerabilities and Exposures (CVE) project has assigned the name CVE-2008-0212 to this issue. This is a candidate for inclusion in the CVE list (, which standardizes names for security problems.


05/14/2007 Initial vendor notification
05/15/2007 Initial vendor response
02/04/2008 Coordinated public disclosure


The discoverer of this vulnerability wishes to remain anonymous.

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Copyright © 2008 Verisign, Inc.

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