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     Layered Defense Advisory 13 September 2006
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1) Affected Software
Symantec AntiVirus Corporate Edition 10.0
Symantec AntiVirus Corporate Edition  9.0
Symantec AntiVirus Corporate Edition  8.1
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2) Severity
Rating: Medium risk
Impact: Execution of arbitrary code, rights 
escalation and at a minimum, denial of service.
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3) Description of Vulnerability
A format string vulnerability was discovered 
within Symantec AntiVirus Corporate Edition. The 
vulnerability is due to improper processing of 
format strings within Tamper Protection and Virus 
Alert Notification message fields. A local user 
could replace the Tamper Protection and Virus 
Alert Notification messages with a specially 
crafted format string which could allow access to 
the process stack. If successfully exploited, 
this could allow the user to execute code of the 
attacker’s choice with elevated privileges, on the local system.

Other effected software identified by vendor:
Symantec Client Security 3.0
Symantec Client Security 2.x
Symantec Client Security 1.x

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4) Solution

Solutions to fix vulnerability are addressed within Symantec Advisory
http://www.symantec.com/avcenter/security/Content/2006.09.13.html
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5) Time Table
01/08/2006 – Reported Vulnerability to Vendor.
09/13/2006 – Vendor Public disclosure.
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6) Credits
Discovered by Deral Heiland, www.LayeredDefense.com
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7) References
CVE Reference:
CVE-2006-3454 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3454
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9) 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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