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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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Vulnerability Assessment Details

DoSable squid proxy server

Vulnerability Assessment Summary
Acertains via ver. if a proxy server is DoSable

Detailed Explanation for this Vulnerability Assessment

A problem exists in the way the remote Squid proxy server handles a
special 'mkdir-only' PUT request, and causes denial of service to the proxy
server.

A possible hacker may use this flaw to prevent your LAN users from accessing
the web.

Solution: Apply the vendor released patch, for squid it is located here:
www.squid-cache.org. You can also protect yourself by enabling access lists
on your proxy.

*** Note that Nessus solely relied on the version number of the remote
*** proxy to issue this warning

Network Security Threat Level: Medium / High

Networks Security ID: 3354

Vulnerability Assessment Copyright: This script is Copyright (C) 2001 Adam Baldwin

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