[NEWS] Citrix Metaframe XP is vulnerable to Cross Site Scripting
From: SecuriTeam (support_at_securiteam.com)
To: firstname.lastname@example.org Date: 2 Nov 2003 19:07:58 +0200
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
- - promotion
The SecuriTeam alerts list - Free, Accurate, Independent.
Get your security news from a reliable source.
- - - - - - - - -
Citrix Metaframe XP is vulnerable to Cross Site Scripting
The Citrix MetaFrame Access Suite is a product that enables users to
access enterprise applications and information on demand. MetaFrame XP is
vulnerable to a Cross-Site Scripting attack based on the manipulation of
error messages sent to user's web browser.
* Citrix MetaFrame XP 1.0
* Web Interface 2.0
During a recent penetration test, IRM identified a machine running Citrix
MetaFrame XP that prompted for authentication credentials. When 'random'
credentials were supplied, a page was returned displaying the following
"ERROR: The credentials supplied were invalid. Please try again."
The text used to construct this error message formed part of the URL:
If the URL was changed to the following:
MessageType=Error&NFuse_Message=< SCRIPT>alert("Vulnerable to
Citrix were contacted and immediately confirmed that this was indeed a
security issue and set about producing a patch to include in the next
update for the product.
IRM are not aware of any workarounds for this issue.
The information has been provided by <mailto:email@example.com> IRM
This bulletin is sent to members of the SecuriTeam mailing list.
To unsubscribe from the list, send mail with an empty subject line and body to: firstname.lastname@example.org
In order to subscribe to the mailing list, simply forward this email to: email@example.com
The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.