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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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Squid Multiple Flaws

Vulnerability Assessment Summary Acertains squid version Detailed Explanation for this Vulnerability Assessment The remote squid caching proxy, according to its version number, is vulnerable to various security flaws : - There is a buffer overflow issue when handling the reply of a rogue gopher site. To exploit this issue, a possible hacker would need to use the remote proxy to visit a specially setup gopher site generating malformed replies - There is a denial of service vulnerability in the WCCP code of the remote proxy. To exploit this flaw, a possible hacker would need to guess the IP of the WCCP router used by the proxy and spoof a malformed UDP packet using the router IP address. - There is a buffer overflow in the WCCP code which may permit a possible hacker to execute arbitrary code on the remote host - There is a flaw in the 'squid_ldap_auth' module which may permit a possible hacker to bypass authentication and to gain access to the remote proxy - There is a flaw in the way Squid parses HTTP reply headers *** Given the way the Squid team handles releases, this may be a *** false positive. Make sure that all the appropriate patches *** have been applied. Solution : Upgrade to squid 2.5.STABLE8 (when available) or newer See also : http://www.squid-cache.org/Versions/v2/2.5/bugs/ Network Security Threat Level: High Networks Security ID: 12275, 12276, 12412, 12433, 12432, 12431, 13434, 13435 Vulnerability Assessment Copyright: This script is Copyright (C) 2005-2007 Tenable Network Security

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