The /etc/smb.conf file must not have an extended ACL.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000225

SV-64085r1_rule The /etc/smb.conf file must not have an extended ACL.

Vulnerability discussion

Excessive permissions could endanger the security of the Samba configuration file and, ultimately, the system and network.

Check content

Check the permissions of the Samba configuration file. # ls -lL /etc/samba/smb.conf If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix text

Remove the extended ACL from the file. # setfacl --remove-all /etc/samba/smb.conf

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