{"description": "\nTo configure the system to prevent the <code>vfat</code>\nkernel module from being loaded, add the following line to the file <code>/etc/modprobe.d/vfat.conf</code>:\n<pre>install vfat /bin/false</pre>\nThis entry will cause a non-zero return value during a <code>vfat</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 vfat /bin/true</pre>\n\nThis effectively prevents usage of this uncommon filesystem.\n\nThe <tt>vFAT</tt> filesystem format is primarily used on older\nwindows systems and portable USB drives or flash modules. It comes\nin three types <tt>FAT12</tt>, <tt>FAT16</tt>, and <tt>FAT32</tt>\nall of which are supported by the <tt>vfat</tt> kernel module.", "rationale": "Removing support for unneeded filesystems reduces the local attack\nsurface of the system.", "severity": "low", "references": {"cis-csc": ["11", "14", "3", "9"], "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"]}, "control_references": {}, "components": [], "identifiers": {}, "ocil_clause": null, "ocil": null, "oval_external_content": null, "fixtext": "", "checktext": "", "vuldiscussion": "", "srg_requirement": "", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {}, "platform": "system_with_kernel and non-uefi", "platforms": ["system_with_kernel and non-uefi"], "sce_metadata": {}, "inherited_platforms": [], "cpe_platform_names": ["non-uefi_and_system_with_kernel"], "inherited_cpe_platform_names": [], "bash_conditional": null, "fixes": {}, "title": "Disable Mounting of vFAT filesystems", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/permissions/mounting/kernel_module_vfat_disabled/rule.yml", "template": {"name": "kernel_module_disabled", "vars": {"kernmodule": "vfat"}, "backends": {}}}