| Dmitry Teselkin | 11ef373 | 2018-09-03 15:32:07 +0300 | [diff] [blame] | 1 | # CIS 6.1.3 Ensure permissions on /etc/shadow are configured |
| 2 | # |
| 3 | # Description |
| 4 | # =========== |
| 5 | # The /etc/shadow file is used to store the information about user accounts |
| 6 | # that is critical to the security of those accounts, such as the hashed |
| 7 | # password and other security information. |
| 8 | # |
| 9 | # Rationale |
| 10 | # ========= |
| 11 | # If attackers can gain read access to the /etc/shadow file, they can easily |
| 12 | # run a password cracking program against the hashed password to break it. |
| 13 | # Other security information that is stored in the /etc/shadow file (such |
| 14 | # as expiration) could also be useful to subvert the user accounts. |
| 15 | # |
| 16 | # Audit |
| 17 | # ===== |
| 18 | # Run the following command and verify Uid is 0/root , Gid is <gid>/shadow , |
| 19 | # and Access is 640 or more restrictive: |
| 20 | # |
| 21 | # # stat /etc/shadow |
| 22 | # Access: (0640/-rw-r-----) Uid: (0/root) Gid: (42/shadow) |
| 23 | # |
| 24 | # Remediation |
| 25 | # =========== |
| 26 | # Run the one following commands to set permissions on /etc/shadow : |
| 27 | # |
| 28 | # # chown root:shadow /etc/shadow |
| 29 | # # chmod o-rwx,g-wx /etc/shadow |
| 30 | # |
| 31 | parameters: |
| 32 | linux: |
| 33 | system: |
| 34 | file: |
| 35 | /etc/shadow: |
| 36 | user: 'root' |
| 37 | group: 'shadow' |
| 38 | mode: '0640' |
| 39 | |