| # 3.5.2 Ensure DCCP is disabled |
| # |
| # Description |
| # =========== |
| # The Datagram Congestion Control Protocol (DCCP) is a transport layer protocol |
| # that supports streaming media and telephony. DCCP provides a way to gain |
| # access to congestion control, without having to do it at the application |
| # layer, but does not provide in-sequence delivery. |
| # |
| # Rationale |
| # ========= |
| # If the protocol is not required, it is recommended that the drivers not be |
| # installed to reduce the potential attack surface. |
| # |
| # Audit |
| # ===== |
| # Run the following commands and verify the output is as indicated: |
| # |
| # # modprobe -n -v dccp |
| # install /bin/true |
| # # lsmod | grep dccp |
| # <No output> |
| # |
| # Remediation |
| # =========== |
| # Edit or create the file /etc/modprobe.d/CIS.conf and add the following line: |
| # |
| # install dccp /bin/true |
| # |
| parameters: |
| linux: |
| system: |
| kernel: |
| module: |
| dccp: |
| install: |
| command: /bin/true |
| |