Layered Defense Research Advisory: F-Secure Anti-Virus Client Security 6.02 Format String Vulnerability

[Deral Heiland <dh () layereddefense com>]

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Layered Defense Research Advisory 18 March 2007
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1) Affected Software
F-Secure Anti-Virus Client Security Version 6.02
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2) Severity Rating:
Low risk
Impact: Local read write arbitrary memory, denial of service.
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3) Description of Vulnerability
A format string vulnerability was discovered within F-Secure 
Anti-Virus Client Security Version 6.02. The vulnerability is due to 
improper processing of format strings when processing the Management 
Server name field. When special crafted format strings are entered 
into the Management Server name field under the Communication 
settings, an attacker can read/write arbitrary memory, and at a 
minimum can cause a denial of service condition.
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4) Solution
Fix: 
http://support.f-secure.com/enu/corporate/downloads/hotfixes/av-cs-hotfixes.shtml
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5) Time Table:
11/20/2006 Reported Vulnerability to Vendor.
11/29/2007 Vendor acknowledged the vulnerability
03/01/2007 Vendor published hot fix
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6) Credits Discovered by Deral Heiland, www.LayeredDefense.com
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7) Reference
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8) About Layered Defense Layered Defense, Is a group of security 
professionals that work together on ethical Research, Testing and 
Training within the information security arena. http://www.layereddefense.com
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