{"description": "The Datagram Congestion Control Protocol (DCCP) is a\nrelatively new transport layer protocol, designed to support\nstreaming media and telephony.\n\nTo configure the system to prevent the <code>dccp</code>\nkernel module from being loaded, add the following line to the file <code>/etc/modprobe.d/dccp.conf</code>:\n<pre>install dccp /bin/false</pre>\nThis entry will cause a non-zero return value during a <code>dccp</code> module installation\nand additionally convey the meaning of the entry to the user in form of an error message.\nIf you would like to omit a non-zero return value and an error message, you may want to add a different line instead\n(both <code>/bin/true</code> and <code>/bin/false</code> are allowed by OVAL and will be accepted by the scan):\n<pre>install dccp /bin/true</pre>", "rationale": "Disabling DCCP protects\nthe system against exploitation of any flaws in its implementation.", "severity": "medium", "references": {"cis-csc": ["11", "14", "3", "9"], "cjis": ["5.10.1"], "cobit5": ["BAI10.01", "BAI10.02", "BAI10.03", "BAI10.05", "DSS05.02", "DSS05.05", "DSS06.06"], "cui": ["3.4.6"], "isa-62443-2009": ["4.3.3.5.1", "4.3.3.5.2", "4.3.3.5.3", "4.3.3.5.4", "4.3.3.5.5", "4.3.3.5.6", "4.3.3.5.7", "4.3.3.5.8", "4.3.3.6.1", "4.3.3.6.2", "4.3.3.6.3", "4.3.3.6.4", "4.3.3.6.5", "4.3.3.6.6", "4.3.3.6.7", "4.3.3.6.8", "4.3.3.6.9", "4.3.3.7.1", "4.3.3.7.2", "4.3.3.7.3", "4.3.3.7.4", "4.3.4.3.2", "4.3.4.3.3"], "isa-62443-2013": ["SR 1.1", "SR 1.10", "SR 1.11", "SR 1.12", "SR 1.13", "SR 1.2", "SR 1.3", "SR 1.4", "SR 1.5", "SR 1.6", "SR 1.7", "SR 1.8", "SR 1.9", "SR 2.1", "SR 2.2", "SR 2.3", "SR 2.4", "SR 2.5", "SR 2.6", "SR 2.7", "SR 7.6"], "iso27001-2013": ["A.12.1.2", "A.12.5.1", "A.12.6.2", "A.14.2.2", "A.14.2.3", "A.14.2.4", "A.9.1.2"], "nist": ["CM-7(a)", "CM-7(b)", "CM-6(a)"], "nist-csf": ["PR.IP-1", "PR.PT-3"], "pcidss": ["Req-1.4.2"], "srg": ["SRG-OS-000096-GPOS-00050", "SRG-OS-000378-GPOS-00163"], "cis": ["3.2.1"], "pcidss4": ["1.4.2", "1.4"]}, "control_references": {"cis": ["3.2.1"], "pcidss4": ["1.4.2", "1.4"]}, "components": [], "identifiers": {}, "ocil_clause": "no line is returned", "ocil": "\nIf the system is configured to prevent the loading of the <code>dccp</code> kernel module,\nit will contain lines inside any file in <code>/etc/modprobe.d</code> or the deprecated<code> /etc/modprobe.conf</code>.\nThese lines instruct the module loading system to run another program (such as <code>/bin/false</code>) upon a module <code>install</code> event.\n\nRun the following command to search for such lines in all files in <code>/etc/modprobe.d</code> and the deprecated <code>/etc/modprobe.conf</code>:\n<pre>$ grep -r dccp /etc/modprobe.conf /etc/modprobe.d</pre>", "oval_external_content": null, "fixtext": "Configure Ubuntu 22.04 to disable the Datagram Congestion Control Protocol (DCCP).\n\nTo configure the system to prevent the <code>dccp</code>\nkernel module from being loaded, add the following line to the file <code>/etc/modprobe.d/dccp.conf</code>:\n<pre>install dccp /bin/false</pre>\nThis entry will cause a non-zero return value during a <code>dccp</code> module installation\nand additionally convey the meaning of the entry to the user in form of an error message.\nIf you would like to omit a non-zero return value and an error message, you may want to add a different line instead\n(both <code>/bin/true</code> and <code>/bin/false</code> are allowed by OVAL and will be accepted by the scan):\n<pre>install dccp /bin/true</pre>", "checktext": "", "vuldiscussion": "", "srg_requirement": " The kernel module dccp must be disabled in Ubuntu 22.04.", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {}, "platform": null, "platforms": [], "sce_metadata": {}, "inherited_platforms": ["system_with_kernel"], "cpe_platform_names": [], "inherited_cpe_platform_names": ["system_with_kernel"], "bash_conditional": null, "fixes": {}, "title": "Disable DCCP Support", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/network/network-uncommon/kernel_module_dccp_disabled/rule.yml", "template": {"name": "kernel_module_disabled", "vars": {"kernmodule": "dccp"}, "backends": {}}}