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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

Linux FTP backdoor

Vulnerability Assessment Summary
Checks for the NULL ftpd backdoor

Detailed Explanation for this Vulnerability Assessment
There is a backdoor in the old ftp daemons of
Linux, which permits remote users to log in as 'NULL', with password 'NULL',
and to get root rights over FTP.

Solution : Update your FTP server to the latest version available.

Network Security Threat Level: High

Networks Security ID:

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

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