Local / Remote D.o.S Attack in IMail IMONITOR Server for WinNT Version 5.08


IMail Server

IMail IMONITOR Server for WinNT Version 5.08

Binary D.O.S


Source of Binary D.O.S


USSR Advisory Code:   USSR-2000030

Release Date:
January 05, 2000

Systems Affected:
IMail IMONITOR (PORT 8181) Server for WinNT Version 5.08 and maybe
other versions.
IMail Server for WinNT Version 6.0 is not public, so I can't test it
:(, anyway, I think it's vulnerable.

About The Software:
Mail Server is the choice of Business, Schools, and Service
Providers. Unlike Microsoft Exchange and Lotus Notes, which are
costly to deploy and cumbersome to administer, IMail Server is easy
to install and easy to manage. It has a fixed cost and is scalable to
thousands of users per server.


UssrLabs found a bug, in the Imail Imonitor Service, Vulneravility is
in a Cgi-Script (status.cgi), this Script checks if the Server Services is
runing (and it spends too much Cpu in this operation we might add),
if you execute the status.cgi, lots of times in a short time the Imail Imonitor will
crash with an "Invalid Memory Address", and our friend DrWatson tells us
to close the program :).

Open In Internet Explorer: http://ServerIp:8181/status.cgi
And you will See something like this.

|Service    | Status    |
|SMTP       | UP        |
|POP3       | UP        |
|DNS        | UP        |
|WEB        | UP        |
|TELNET     | UP        |
|FTP        | UP        |
|03:33:00   | 03:32:00  |

if you Run the Status.cgi lots of times, the server will crash.

Do you do the w00w00?
This advisory also acts as part of w00giving. This is another
contribution to w00giving for all you w00nderful people out there.
You do know what w00giving is don't you? 

Vendor Status:
Informed, tracking number for this inquiry is IMS2000010500000096.

Vendor   Url: http://www.ipswitch.com
Program Url: http://www.ipswitch.com/Products/IMail_Server/index.asp


Noting yet :(

Eeye, Attrition, w00w00, beavuh, Rhino9, ADM, L0pht, HNN, Technotronic and