| Dmitry Teselkin | ee7b811 | 2018-08-22 12:46:08 +0300 | [diff] [blame] | 1 | # 1.1.1.3 Ensure mounting of jffs2 filesystems is disabled |
| 2 | # |
| 3 | # Description |
| 4 | # =========== |
| 5 | # The jffs2 (journaling flash filesystem 2) filesystem type is a |
| 6 | # log-structured filesystem used in flash memory devices. |
| 7 | # |
| 8 | # Rationale |
| 9 | # ========= |
| 10 | # Removing support for unneeded filesystem types reduces the local attack |
| 11 | # surface of the system. If this filesystem type is not needed, disable it. |
| 12 | # |
| 13 | # Audit |
| 14 | # ===== |
| 15 | # Run the following commands and verify the output is as indicated: |
| 16 | # |
| 17 | # # modprobe -n -v jffs2 |
| 18 | # install /bin/true |
| 19 | # # lsmod | grep jffs2 |
| 20 | # <No output> |
| 21 | # |
| 22 | # Remediation |
| 23 | # =========== |
| 24 | # Edit or create the file /etc/modprobe.d/CIS.conf and add the following line: |
| 25 | # |
| 26 | # install jffs2 /bin/true |
| 27 | # |
| 28 | parameters: |
| 29 | linux: |
| 30 | system: |
| 31 | kernel: |
| 32 | module: |
| 33 | jffs2: |
| 34 | install: |
| 35 | command: /bin/true |
| 36 | |