Secunia Research: My Firewall Plus Privilege Escalation Vulnerability

["Carsten H. Eiram" <che () secunia com>]

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                     Secunia Research 21/12/2004

     - 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 1117)

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 

My Firewall Plus:
"Corporate strength firewall for your personal PC".

Product Link:
http://www.webroot.com/products/myfirewallplus/

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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 "Smc.exe" process invoking the
help functionality with SYSTEM privileges.

This can be exploited to execute arbitrary programs on a system with 
escalated privileges. 

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5) Solution 

Apply patch:
http://www.webroot.com/services/MFP_Patch.exe

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6) Time Table 

15/11/2004 - Vulnerability discovered. 
15/11/2004 - Vendor notified.
15/11/2004 - Vendor response.
16/12/2004 - Vendor issues patch.
21/12/2004 - 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 not
currently assigned the vulnerability a candidate number.

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9) About Secunia 

Secunia collects, validates, assesses, and writes advisories 
regarding all the latest software vulnerabilities disclosed to the 
public. These advisories are gathered in a publicly available 
database at the Secunia website:

http://secunia.com/

Secunia offers services to our customers enabling them to receive 
all relevant vulnerability information to their specific system 
configuration.

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/2004-16/
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