The ftpusers file must contain account names not allowed to use FTP.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000225

SV-62981r1_rule The ftpusers file must contain account names not allowed to use FTP.

Vulnerability discussion

The ftpusers file contains a list of accounts not allowed to use FTP to transfer files. If the file does not contain the names of all accounts not authorized to use FTP, then unauthorized use of FTP may take place.

Check content

Check the contents of the ftpusers file. For gssftp: # more /etc/ftpusers For vsftp: # more /etc/vsftpd.ftpusers /etc/vfsftpd/ftpusers If the system has accounts not allowed to use FTP and not listed in the ftpusers file, this is a finding.

Fix text

For gssftp: Add accounts not allowed to use FTP to the /etc/ftpusers file. For vsftp: Add accounts not allowed to use FTP to the /etc/vsftpd.ftpusers or /etc/vsftpd/ftpusers file (as appropriate).

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