Public Vulnerability Reports

Ipswitch WhatsUp Gold Remote Denial of Service Vulnerability



Ipswitch WhatsUp Gold is a Microsoft Windows based network monitoring
application. More information is available at


Remote exploitation of a denial of service vulnerability in Ipswitch
Inc.'s WhatsUp Gold allows attackers to cause the application to crash.

The problem specifically exists in the handling of reserved DOS device
names. By generating a GET request for 'prn.htm' to the HTTP daemon
installed by WhatsUp Gold, the application crashes and the following
Runtime Library error is displayed:

    Runtime Error!
    Program: C:Program FilesWhatsUpwhatsupg.exe
    abnormal program termination


Successful exploitation allows unauthenticated remote attackers to crash
the WhatsUp Gold application, thereby preventing legitimate usage. The
WhatsUp Gold web server is not enabled by default.


iDEFENSE has confirmed the existence of this vulnerability against
WhatsUp Gold versions 8.03 and the latest version 8.03 Hotfix 1. It is
suspected that earlier versions are also vulnerable.



Disable the WhatsUp Gold web server if it is not required.


A patch to address this issue is available at:


The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2004-0799 to this issue. This is a candidate for inclusion in
the CVE list (, which standardizes names for
security problems.


08/12/2004    Initial vendor notification
08/12/2004    iDEFENSE clients notified
08/12/2004    Initial vendor response
09/16/2004    Coordinated public disclosure


The discoverer wishes to remain anonymous.

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Copyright © 2004 Verisign, Inc.

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