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Secunia Research: Trend Micro Network Security Component Vulnerabilities

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                     Secunia Research 20/01/2009

     - Trend Micro Network Security Component Vulnerabilities -

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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

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1) Affected Software 

* Trend Micro Internet Security 2007
* Trend Micro Internet Security 2008 17.0.1224
* Trend Micro OfficeScan 8.0 SP1 Patch 1

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Less critical
Impact: Denial of Service
	Privilege Escalation
Where:  Local system

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3) Vendor's Description of Software 

"Trend Micro Internet Security provides smart, up-to-date protection
for your home network against present and future threats without
slowing down your PC.".

Product Link:
http://us.trendmicro.com/us/products/personal/internet-security/

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4) Description of Vulnerability

Secunia Research has discovered vulnerabilities in Trend Micro Network
Security Component (NSC) modules as bundled with various products. 
These can be exploited by malicious, local users to cause a DoS 
(Denial of Service) or potentially gain escalated privileges.

1) Input validation errors exist in the firewall service (TmPfw.exe) 
within the "ApiThread()" function when processing packets sent to the 
service (by default port 40000/TCP). These can be exploited to cause 
heap-based buffer overflows via specially crafted packets containing a
small value in a size field.

Successful exploitation may allow execution of arbitrary code with
SYSTEM privileges.

2) Input validation errors exist in the firewall service (TmPfw.exe) 
within the "ApiThread()" function when processing packets sent to the
service (by default port 40000/TCP). These can be exploited to crash 
the service via specially crafted packets containing an overly large 
value in a size field.

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5) Solution 

Apply patch for OfficeScan 8.0 SP1 Patch 1.

A fix for Trend Micro Internet Security should be available shortly.

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6) Time Table 

17/10/2008 - Vendor notified.
18/10/2008 - Vendor response.
14/12/2008 - Vendor provides hotfix for testing.
19/12/2008 - Vendor informed that hotfix fixes vulnerabilities.
18/01/2009 - Vendor issues fix for OfficeScan 8.0 SP1 Patch 1.
20/01/2009 - Public disclosure.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
the following CVE identifiers:

* CVE-2008-3864 (DoS via large size value)
* CVE-2008-3865 (buffer overflow)

Trend Micro:
http://www.trendmicro.com/ftp/documentation/readme/
OSCE8.0_SP1_Patch1_CriticalPatch_3191_Readme.txt

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9) About Secunia

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Secunia believes that it is important to support the community and to
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http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
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Secunia offers a FREE mailing list called Secunia Security Advisories:

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-42/

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

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