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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

FTPd tells if a user exists

Vulnerability Assessment Summary
CWD ~root

Detailed Explanation for this Vulnerability Assessment

It is possible to acertain the existence of a user on the remote
system by issuing the command CWD ~, like :

CWD ~root

A possible hacker may use this to acertain the existence of known to be
vulnerable accounts (like guest) or to acertain which system you
are running.

Solution : inform your vendor, and ask for a patch, or change your FTP server
Network Security Threat Level: Low

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 1999 Renaud Deraison

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