Trend Micro ServerProtect 'splx_2376_info' Cookie Validation Bug Grants Access to Remote Users
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SecurityTracker Alert ID: 1017685
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SecurityTracker URL: http://securitytracker.com/id?1017685
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CVE Reference: CVE-2007-1168
(Links to External Site)
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Updated: May 19 2008
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Original Entry Date: Feb 22 2007
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Impact: User access via network
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Fix Available: Yes
Exploit Included: Yes
Vendor Confirmed: Yes
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Advisory: iDEFENSE
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Version(s): 2.5
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Description: A vulnerability was reported in Trend Micro ServerProtect. A remote user can bypass authentication and access the target application.
The web interface does not properly authenticate remote users. A remote user can set a cookie named 'splx_2376_info' to an arbitrary
value to gain access to the application.
The vendor was notified on January 17, 2007.
This vulnerability was reported to
iDefense by Damian Put.
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Impact: A remote user can gain access to the target application.
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Solution: The vendor has issued a patch (ServerProtect for Linux 2.5 Security Patch - Build 1105 for RedHat), available at:
http://www.trendmicro.com/ftp/products/patches/splx_25
_lx_en_securitypatch_b1105.redhat.tar.gz
The Read Me file is available at:
http://www.trendmicro.com/ftp/documentation/readme/splx_25_lx_en_securitypatch_b1105.redh
at_Readme.txt
The Trend Micro advisory is available at:
http://www.trendmicro.com/download/product.asp?productid=20
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Vendor URL: www.trendmicro.com/download/product.asp?productid=20 (Links to External Site)
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Cause: Authentication error
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Underlying OS: Linux (Any)
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Reported By: iDefense Labs <labs-no-reply@idefense.com>
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Message History:
None.
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Source Message Contents
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Date: Wed, 21 Feb 2007 18:03:23 -0500
From: iDefense Labs <labs-no-reply@idefense.com>
Subject: iDefense Security Advisory 02.16.07: Trend Micro ServerProtect Web
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Trend Micro ServerProtect Web Interface Authorization Bypass Vulnerability
iDefense Security Advisory 02.16.07
http://labs.idefense.com/intelligence/vulnerabilities/
Feb 16, 2007
I. BACKGROUND
Trend ServerProtect is an Anti-virus application designed to run on file
servers to catch viruses before they make it to network users. More
information can be found on the vendors site at:
http://www.trendmicro.com/en/products/file-server/sp-linux/evaluate/overview.htm
II. DESCRIPTION
TrendMicro's ServerProtect product uses a web interface which runs on port
TCP 14942 to configure the product. This interface is protected with a
user configurable password. Upon successful login, a cookie is set with
the name 'splx_2376_info' and a valid session id as its value.
The ServerProtect web application suffers from a design error
vulnerability in its authorization checking routines. Attackers can gain
full access to the web application by requesting any internal page while
supplying their own 'splx_2376_info' cookie with an arbitrary value.
III. ANALYSIS
Exploitation of this vulnerability allows a remote attacker to edit and
disable Anti-Virus features on the server machine.
Cookie values can be easily edited using raw HTTP requests or tools such
as intercept proxies and browser plug-ins. By not checking for a valid
session id and only looking for the cookie name, any value can grant an
attacker full access to the web application.
IV. DETECTION
iDefense has confirmed this vulnerability in Trend ServerProtect v1.3 for
Linux. This vulnerability is not present in the Windows based versions of
Server protect.
V. WORKAROUND
iDefense recommends limiting network access to the ServerProtect web
interface to trusted clients.
VI. VENDOR RESPONSE
Trend Micro has address this vulnerability with a patch release. More
information is available at the Trend Micro Update Center for
ServerProtect for Linux at the following URL.
http://www.trendmicro.com/download/product.asp?productid=20
VII. CVE INFORMATION
A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.
VIII. DISCLOSURE TIMELINE
01/17/2007 Initial vendor notification
01/24/2007 Initial vendor response
02/16/2007 Coordinated public disclosure
IX. CREDIT
This vulnerability was reported to iDefense by Damian Put.
Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php
Free tools, research and upcoming events
http://labs.idefense.com/
X. LEGAL NOTICES
Copyright © 2007 iDefense, Inc.
Permission is granted for the redistribution of this alert electronically.
It may not be edited in any way without the express written consent of
iDefense. If you wish to reprint the whole or any part of this alert in
any other medium other than electronically, please e-mail
customerservice@idefense.com for permission.
Disclaimer: The information in the advisory is believed to be accurate at
the time of publishing based on currently available information. Use of
the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on, this
information.
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