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Oracle HTTP Server 'isqlplus' Input Validation Flaws Let Remote Users Conduct Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1008838
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Jan 24 2004
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Impact: Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Exploit Included: Yes
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Version(s): Based on Apache 1.3.22
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Description: An input validation vulnerability was reported in the Oracle HTTP Server. A remote user can conduct cross-site scripting attacks.
It is reported that a the 'isqlplus' script does not properly filter user-supplied input in the 'action', 'username', and 'password'
parameters. 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 the Oracle HTTP Server software
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]/isqlplus?action=logon&username=sdfds%22%
3e%3cscript%3ealert('X
SS')%3c/script%3e\&password=dsfsd%3cscript%3ealert('XSS')%3c/script%3e
http://[target]/isqlplus?action=<script>alert('XSS')</script>
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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 the
vulnerable Oracle HTTP Server software, 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.
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Solution: No solution was available at the time of this entry.
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Vendor URL: www.oracle.com/ (Links to External Site)
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Cause: Input validation error
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Underlying OS: Windows (Any)
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Reported By: Rafel Ivgi, The-Insider <theinsider@012.net.il>
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Message History:
None.
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Source Message Contents
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Date: Sat, 24 Jan 2004 11:54:21 +0200
From: Rafel Ivgi, The-Insider <theinsider@012.net.il>
Subject: Oracle HTTP Server Cross Site Scripting Vulnerabillity
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Software: Oracle HTTP Server Powered by Apache
Vendor: http://www.apache.com
http://www.oracle.com
Versions: Oracle HTTP Server Powered by Apache/1.3.22 (Win32)
mod_plsql/3.0.9.8.3b mod_ssl/2.8.5 OpenSSL/0.9.6b mod_fastcgi/2.2.12
mod_oprocmgr/1.0 mod_perl/1.25
Platforms: Windows
Bug: Cross Site Scripting Vulnerabillity
Risk: Low
Exploitation: Remote with browser
Date: 24 Jan 2004
Author: Rafel Ivgi, The-Insider
e-mail: the_insider@mail.com
web: http://theinsider.deep-ice.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1) Introduction
2) Bug
3) The Code
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
===============
1) Introduction
===============
Apache is the most common unix server in the world. It is strong and safe.
Oracle HTTP Server is a modified, custom apache server that was created by
apache for oracle.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
======
2) Bug
======
The Vulnerabillity is Cross Site Scripting. If an attacker will request the
following
url from the server:
http://<host>/isqlplus?action=logon&username=sdfds%22%3e%3cscript%3ealert('X
SS')%3c/script%3e\&password=dsfsd%3cscript%3ealert('XSS')%3c/script%3e
Or
http://<host>/isqlplus?action=<script>alert('XSS')</script>
XSS appears and the server allows an attacker to inject & execute scripts.
In the words of securityfocus.com :
~~~~~~~~~~~~~~~~~~~~~~~~~~
If all of these circumstances are met, an attacker may be able to exploit
this issue
via a malicious link containing arbitrary HTML and script code as part of
the hostname.
When the malicious link is clicked by an unsuspecting user, the
attacker-supplied HTML
and script code will be executed by their web client. This will occur
because the server
will echo back the malicious hostname supplied in the client's request,
without sufficiently
escaping HTML and script code.
Attacks of this nature may make it possible for attackers to manipulate web
content or to
steal cookie-based authentication credentials. It may be possible to take
arbitrary actions as the victim user.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
===========
3) The Code
===========
http://<host>/isqlplus?action=logon&username=sdfds%22%3e%3cscript%3ealert('X
SS')%3c/script%3e\&password=dsfsd%3cscript%3ealert('XSS')%3c/script%3e
http://<host>/isqlplus?action=<script>alert('XSS')</script>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
---
Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Things that are unlikeable, are NOT impossible."
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