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Message-Id: <200808221033.m7MAXa2I024485@ca.secunia.com>
Date: Fri, 22 Aug 2008 12:33:36 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: bugtraq@...urityfocus.com
Subject: Secunia Research: Trend Micro Products Web Management Authentication Bypass

====================================================================== 

                     Secunia Research 22/08/2008

    - Trend Micro Products Web Management Authentication Bypass -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software

* Trend Micro OfficeScan 7.0
* Trend Micro OfficeScan 7.3
* Trend Micro OfficeScan 8.0
* Worry-Free Business Security 5.0
* Trend Micro Client/Server/Messaging Suite 3.5
* Trend Micro Client/Server/Messaging Suite 3.6

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Moderately critical
Impact: Security bypass
Where:  Local network

====================================================================== 
3) Vendor's Description of Software 

"Protect your desktops, laptops, and file servers with OfficeScan™,
comprehensive security against today’s complex, blended threats and
Web-based attacks."

Product Link:
http://us.trendmicro.com/us/products/enterprise/officescan-client-
server-edition/

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in certain Trend Micro
products, which can be exploited by malicious people to bypass 
authentication.

The vulnerability is caused by insufficient entropy being used to 
create a random session token for identifying an authenticated
manager using the web management console. The entropy in the session 
token comes solely from the system time when the real manager logs in
with a granularity of one second. This can be exploited to 
impersonate a currently logged on manager by brute forcing the 
authentication token.

Successful exploitation further allows execution of arbitrary code 
via manipulation of the configuration.

====================================================================== 
5) Solution 

The vendor has issued patches for Trend Micro OfficeScan 8.0 and
Worry-Free Business Security 5.0.

Fixes for other affected versions should be available shortly.

====================================================================== 
6) Time Table 

12/08/2008 - Vendor notified.
12/08/2008 - Vendor response.
16/08/2008 - Vendor provides status update.
22/08/2008 - Vendor issues patches for some of the affected products.
22/08/2008 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Dyon Balding, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2008-2433 for the vulnerability.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below 
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

======================================================================
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-31/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================

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