Oracle Application Server May Discloses Files in '/dav_portal/portal/' Directory to Remote Users
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SecurityTracker Alert ID: 1020034
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SecurityTracker URL: http://securitytracker.com/id?1020034
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CVE Reference: CVE-2008-2138
(Links to External Site)
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Date: May 16 2008
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Impact: Disclosure of user information
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Exploit Included: Yes
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Version(s): 10G
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Description: A vulnerability was reported in Oracle Application Server. A remote user can view certain files on the target system.
A remote user can supply a specially crafted cookie value to bypass authentication and view files in the '/dav_portal/portal/' directory.
This can reportedly be exploited by making a URL request terminating in the '%0A' string to cause a special session ID cookie to
be set and then requesting the '/dav_portal/portal/' directory.
Deniz Cevik reported this vulnerability.
[Editor's note:
CVE has reported that "as of 20080512, Oracle has not commented on the accuracy of this report."]
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Impact: A remote user can view certain files on the target system.
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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: Access control error, Input validation error
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Underlying OS: Linux (Any), UNIX (AIX), UNIX (HP/UX), UNIX (Solaris - SunOS), UNIX (Tru64), Windows (NT), Windows (2000)
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Reported By: "Deniz Cevik" <Deniz.Cevik@intellect.com.tr>
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Message History:
None.
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Source Message Contents
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Date: Fri, 9 May 2008 15:49:36 +0300
From: "Deniz Cevik" <Deniz.Cevik@intellect.com.tr>
Subject: Oracle Application Server 10G ORA_DAV Basic Authentication Bypass Vulnerability
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Affected Software/Device: Oracle Application Server Portal
Vulnerability: Authentication Bypass
Tested Version: 10G
Risk: Medium
Description:
Oracle Application Server Portal (OracleAS Portal) is a Web-based
application for building and deploying portals. It provides a secure,
manageable environment for accessing and interacting with enterprise
software services and information resources.
Initially /dav_portal/portal/ directory is being protected using basic
authentication. It is possible to bypass and access content of
dav_portal by adding a specially crafted cookie value in the http
request header.
Sample Request:
In order to construct a special http request first visit
"http:/site/pls/portal/%0A" url. This request adds special session id
into cookie. Subsequent connection attempts to
"http://site/dav_portal/portal/" will reveal the contents of directory
without any authentication.
Deniz CEVIK
www.intellectpro.com.tr
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