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Details : SecurityAlert

  Topic : Trend Micro Products Web Management Authentication Bypass
  SecurityAlert : 4191
  CVE : CVE-2008-2433
  CWE : CWE-287
  SecurityRisk : High  alert  (About)
  Remote Exploit : Yes
  Local Exploit : No
  Victim interaction required : No
  Exploit Given : No
  Credit : Secunia
  Published : 28.08.2008

  Affected Software : Trend Micro, OfficeScan, 8.0
Trend Micro, Worry_free_business_security, 5.0
Trend Micro, Client_server_messaging_suite, 3.5
Trend Micro, Client_server_messaging_suite, 3.6



  Advisory Text :  

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

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/

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



  References :

http://secunia.com/advisories/31373
http://xforce.iss.net/xforce/xfdb/44597
http://www.trendmicro.com/ftp/documentation/readme/Readme_WFBS5%200_EN_Crit
icalPatch1404.txt

http://www.trendmicro.com/ftp/documentation/readme/OSCE_8.0_SP1_Win_EN_Crit
icalPatch_B2402_readme.txt

http://www.securityfocus.com/bid/30792
http://www.securityfocus.com/archive/1/archive/1/495670/100/0/threaded
http://secunia.com/secunia_research/2008-31/advisory/



  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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