# CIS 6.1.7 Ensure permissions on /etc/shadow- are configured # # Description # =========== # The /etc/shadow- file is used to store backup information about user # accounts that is critical to the security of those accounts, such as the # hashed password and other security information. # # Rationale # ========= # It is critical to ensure that the /etc/shadow- file is protected from # unauthorized access. Although it is protected by default, the file # permissions could be changed either inadvertently or through malicious actions. # # Audit # ===== # Run the following command and verify Uid and Gid are both 0/root and # Access is 600 or more restrictive: # # # stat /etc/shadow- # Access: (0600/-rw-------) Uid: (0/root) Gid: (0/root) # # Remediation # =========== # Run the following command to set permissions on /etc/shadow- : # # # chown root:root /etc/shadow- # # chmod 600 /etc/shadow- # parameters: linux: system: file: /etc/shadow-: user: 'root' group: 'root' mode: '0600'