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Check: GEN004900

SUSE Linux Enterprise Server v11 for System z STIG: GEN004900 (in versions v1 r12 through v1 r9)

Title

The ftpusers file must contain account names not allowed to use FTP. (Cat II impact)

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/vfsftpd.ftpusers or /etc/vfsftpd/ftpusers file (as appropriate).

Additional Identifiers

Rule ID: SV-45880r1_rule

Vulnerability ID: V-841

Group Title: GEN004900

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege