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VUPEN Security / Public Mailing Lists Mirror |
Assigned : VUPEN/ADV-2005-3085
From : Johannes Greil <j.greil at sec-consult.com>
Subject : SEC Consult SA-20051223-1 :: File Disclosure using df_next_page parameter in OracleAS Discussion Forum Portlet
Date : 2005-12-23
Original Message
SEC Consult Security Advisory < 20051223-1 >
========================================================================
title: < File Disclosure using df_next_page parameter
in OracleAS Discussion Forum Portlet >
program: < OracleAS Discussion Forum Portlet >
vulnerable version: < Version of May 2005 >
homepage: < http://www.oracle.com >
found: < 2005-09-16 >
by: < Johannes Greil > SEC-CONSULT / www.sec-consult.com
========================================================================
vendor description:
-------------------
Oracle's business is information - how to manage it, use it, share it,
protect it. For nearly three decades, Oracle, the world's largest
enterprise software company, has provided the software and services
that let organizations get the most up-to-date and accurate information
from their business systems.
[www.oracle.com]
vulnerability overview:
-----------------------
It is possible to read arbitrary files of the system such as the
WEB-INF directory through the discussion forum portlet. An attacker
needs to know the file names.
proof of concept:
-----------------
By requesting the forum URL and adding a null character "%00" to the
"df_next_page" parameter, it is possible to retrieve the source code of
the JSP files or other content on the server.
e.g.
$ GET
http://$host/portal/page?_pageid=XXX,XXX&_dad=portal&_schema=PORTAL&
df_next_page=htdocs/search.jsp%00
vulnerable versions:
--------------------
Version of May 2005
http://www.oracle.com/technology/products/ias/portal/point_downloads.html#forum
vendor status:
--------------
vendor notified: 2005-09-26
vendor response: 2005-09-27
patch available: -
The first response from Oracle was on 27th September (assigning bug
numbers) with a more detailed answer on 28th September. They explicitly
said that the forum is sample code and shouldn't be used in a production
environment although it can be found in such installations.
The last email from Oracle was on 21st October saying that they will fix
it "hopefully within the next 4 weeks". Asking them for a status update
at the beginning of December and another email on 19th December didn't
trigger any responses hence this advisory is being released.
solution:
---------
Only use the forum portlet in test installations and not in a production
environment.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
< Johannes Greil > / www.sec-consult.com /
SGT ::: < tke, mei, bmu, dfa > :::
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