| Dmitry Teselkin | ee7b811 | 2018-08-22 12:46:08 +0300 | [diff] [blame] | 1 | # 1.1.1.7 Ensure mounting of udf filesystems is disabled |
| 2 | # |
| 3 | # Description |
| 4 | # =========== |
| 5 | # The udf filesystem type is the universal disk format used to implement |
| 6 | # ISO/IEC 13346 and ECMA-167 specifications. This is an open vendor filesystem |
| 7 | # type for data storage on a broad range of media. This filesystem type is |
| 8 | # necessary to support writing DVDs and newer optical disc formats. |
| 9 | # |
| 10 | # Rationale |
| 11 | # ========= |
| 12 | # Removing support for unneeded filesystem types reduces the local attack |
| 13 | # surface of the server. If this filesystem type is not needed, disable it. |
| 14 | # |
| 15 | # Audit |
| 16 | # ===== |
| 17 | # Run the following commands and verify the output is as indicated: |
| 18 | # |
| 19 | # # modprobe -n -v udf |
| 20 | # install /bin/true |
| 21 | # # lsmod | grep udf |
| 22 | # <No output> |
| 23 | # |
| 24 | # Remediation |
| 25 | # =========== |
| 26 | # Edit or create the file /etc/modprobe.d/CIS.conf and add the following line: |
| 27 | # |
| 28 | # install udf /bin/true |
| 29 | # |
| 30 | parameters: |
| 31 | linux: |
| 32 | system: |
| 33 | kernel: |
| 34 | module: |
| 35 | udf: |
| 36 | install: |
| 37 | command: /bin/true |
| 38 | |