Title: Computer Associates Virus Definition Downgrade Vulnerability
Severity: HIGH
Description:
Computer Associates WebScan is a web-based virus scanner for the Microsoft Windows operating system.
A flaw in the Computer Associates WebScan product reportedly could cause the application's virus definitions to be downgraded to a previous version. A remote attacker can exploit the issue by modifying the timestamp value in an update server's file listing, and can then enticing a victim user to visit a site and download a malicious version of the WebScan virus definition file or WebScan engine component.
This presents a security risk because the virus definitions in question may be out of date and may not effectively detect newer variants of malicious code.
Affected Products:
- Computer Associates eTrust Antivirus WebScan 1.1.0.1045
- Computer Associates eTrust Antivirus WebScan 1.1.0.1047
References:
- Computer Associates: CA 34509 : CA eTrust Antivirus WebScan multiple vulnerabilities
- Computer Associates: Computer Associates Web Site
- TippingPoint: TippingPoint Advisory TSRT-06-05
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