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Category:   Application (Firewall)  >   Trend Micro Internet Security Vendors:   Trend Micro
Trend Micro Internet Security Buffer Overflow in 'tmactmon.sys' Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1021955
SecurityTracker URL:
CVE Reference:   CVE-2009-0686   (Links to External Site)
Date:  Apr 1 2009
Impact:   Execution of arbitrary code via local system, Root access via local system

Version(s): 2008, 2009
Description:   A vulnerability was reported in Trend Micro Internet Security. A local user can obtain elevated privileges on the target system.

A local user can supply a specially crafted IOCTL parameter value to the 'tmactmon.sys' driver to trigger a buffer overflow and execute arbitrary code with System privileges.

The vendor was notified on February 4, 2009.

Nikita Tarakanov of the Positive Technologies Research Team reported this vulnerability.

Impact:   A local user can obtain System privileges on the target system.
Solution:   No solution was available at the time of this entry.
Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  [Positive Technologies SA 2009-09] Trend Micro Internet Security Pro 2009 tmactmon.sys Priviliege Escalation Vulnerabilities


         (PT-2009-09) Positive Technologies Security Advisory

       Trend Micro Internet Security Pro 2009 tmactmon.sys Priviliege 
Escalation Vulnerabilities


---[ Affected Software ]

        Trend Micro:
  Trend Micro Internet Security Pro 2009
                Trend Micro Internet Security 2009
                Trend Micro Internet Security Pro 2008
                Trend Micro Internet Security 2008

        Product Link:

---[ Severity Rating ]

        Severity:       Medium
        Impact:         Priviliege Escalation
        Attack Vector:  Local

        CVSS v2:
               Base Score:     6.9
               Temporal Score: 6.6
               Vector:         (AV:L/AC:M/Au:N/C:C/I:C/A:C/E:F/RL:U/RC:C)

        CVE:   CVE-2009-0686

---[ Software Description ]

Trend Micro(TM) Internet Security Pro provides comprehensive protection 
against viruses, Trojan horse programs, worms, and other threats, including 
network viruses and rootkits. It also blocks spyware, hackers, phishing 
fraud attempts, and unwanted Web sites. It can filter your email messages 
for spam as well.

---[ Vulnerability Description ]

Positive Technologies Research Team has discovered multiple priviliege 
escalation vulnerabilities in Trend Micro products.

The IOCTL handler in tmactmon.sys uses the METHOD_NEITHER communication 
method for IOCTLs and does not properly validate buffer data associated with 
the Irp object, which allows local users to gain SYSTEM privilieges.

---[ Solution ]

Not available.

---[ Disclosure Timeline ]

02.04.2009 - Vendor notified
no response
02.12.2009 - Second notification
no response
03.31.2009 - Vulnerability details disclosed by third party
03.31.2009 - Public disclosure

---[ Credits ]

This vulnerability was discovered by Nikita Tarakanov, Positive Technologies 
Research Team.

---[ References ]

Complete list of vulnerability reports published by Positive Technologies 
Research Team:

---[ About Positive Technologies ]

Positive Technologies is among the key players in the IT 
security market in Russia.
The principal activities of the company include the development of 
integrated tools for information security monitoring (MaxPatrol); providing 
IT security consulting services and technical support; the development of 
the Securitylab leading Russian information security 

Among the clients of Positive Technologies there are more than 40 state 
enterprises, more than 50 banks and financial organizations, 20 
telecommunication companies, more than 40 plant facilities, as well as IT, 
service and retail companies from Russia, CIS countries, Baltic States, 
China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, 
Mexico, South African Republic, Thailand, Turkey and USA.

Positive Technologies is a team of highly skilled developers, advisers and 
experts with years of vast hands-on experience. The company specialists 
possess professional titles and certificates; they are the members of 
various international societies and are actively involved in the IT security 
field development. 


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