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RE: Pentesting a Citrix Network
From: "Greg" <greg () hoobie net>
Date: Tue, 5 Mar 2002 18:32:06 -0000

Yes, that's what I have done in the past. The HTTP server is related to the
'published applications' function within Citrix. If you take a Citrix ICA
client and attempt to list the published apps on a specified server you will
see an HTTP POST request go to the Citrix HTTP server, I don't remember the
script name but it is in a /scripts/ directory.

Set up your Citrix connection, from the client, as a TCP/IP+HTTP connection
and you will be able to examine the requests (which are cleartext)

cheers

Greg



-----Original Message-----
From: Erlend J. Leiknes [mailto:nookie () online no]
Sent: 05 March 2002 05:42
To: pen-test () securityfocus com; Franklin DeMatto
Subject: Re: Pentesting a Citrix Network


What about setting up a citrix client, and then sniffing the data between
them?


----- Original Message -----
From: "Franklin DeMatto" <franklin.lists () qDefense com>
To: <pen-test () securityfocus com>
Sent: Sunday, March 03, 2002 10:53 PM
Subject: Pentesting a Citrix Network


I'm pentesting a network that includes two Citrix servers on
Win 2k.  As I
have no experience whatsoever with Citrix, I thought I'd ask if
anyone can
help me out.  The servers listen on port 80, with the following banners:

HEAD / HTTP/1.0

HTTP/1.1 400 Bad request
Server: Citrix Web PN Server
Date: xxxx
Connection: Close

They also listen on the 1494 port (which is designated for citrix)

I was unable to get it to respond to any HTTP request, by hand or with a
browser.

I'd appreciate if anyone could help me with some of the following
questions
(again, they may be basic, I have never used Citrix):

Which Citrix product is it?  Is there a way to fingerprint it?
How do I get it to respond to HTTP requests?
Are there any information disclosure possibilites?  How about
vulnerabilities (i.e. buffer overflows, etc.)?

Any help would be very appreciated!



Franklin DeMatto
Senior  Analyst, qDefense Penetration Testing
http://qDefense.com
qDefense: Making Security Accessible



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This list is provided by the SecurityFocus Security Intelligence
Alert (SIA)
Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities
please see:
https://alerts.securityfocus.com/



----------------------------------------------------------------------------
This list is provided by the SecurityFocus Security Intelligence Alert (SIA)
Service. For more information on SecurityFocus' SIA service which
automatically alerts you to the latest security vulnerabilities please see:
https://alerts.securityfocus.com/


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