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Vulnerability Assessment Details

Solaris finger disclosure

Vulnerability Assessment Summary
Enumerates users with finger

Detailed Explanation for this Vulnerability Assessment

There is a bug in the remote finger service which, when triggered, permits
a user to force the remote finger daemon to display the list of the accounts
that have never been used, by issuing the request :

finger 'a b c d e f g h'@target

This list will help a possible hacker to guess the operating system type. It will
also tell him which accounts have never been used, which will often make him
focus his attacks on these accounts.

Solution : disable the finger service in /etc/inetd.conf and restart the inetd
process, or apply the relevant patches from Sun Microsystems.

Network Security Threat Level: Medium

Networks Security ID: 3457

Vulnerability Assessment Copyright: This script is Copyright (C) 2001 Renaud Deraison

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