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[Full-disclosure] Secunia Research: My Firewall Plus Privilege Escalation Vulnerability

From: Secunia Research (remove-vulnsecunia.com)
Date: Tue Nov 21 2006 - 09:44:28 CST


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                     Secunia Research 21/11/2006

      - My Firewall Plus Privilege Escalation Vulnerability -

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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

My Firewall Plus 5.0 Build 1119.

NOTE: Other versions may also be affected.

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2) Severity

Rating: Less critical
Impact: Privilege Escalation
Where: Local System

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3) Vendor's Description of Software

"Corporate strength firewall for your personal PC".

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4) Description of Vulnerability

Secunia Research has discovered a vulnerability in My Firewall Plus,
which can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to the application windows running
with SYSTEM privileges and the application not checking if
explorer.exe is running before performing certain actions. This can be
exploited to launch iexplore.exe with SYSTEM privileges by terminating
explorer.exe and then use the "Test Your Firewall" functionality.

Successful exploitation allows execution of arbitrary commands with
SYSTEM privileges.

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5) Solution

Enable the password protection to reduce the risk.

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6) Time Table

03/08/2006 - Vendor notified.
03/08/2006 - Vendor response.
16/08/2006 - Vendor reminder sent.
11/10/2006 - Vendor reminder sent.
21/11/2006 - Public disclosure.

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7) Credits

Discovered by Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2006-3973 for the vulnerability.

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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/

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10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-59/

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

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