{"description": "Single user mode is used for recovery when the system detects an\nissue during boot or by manual selection from the bootloader.", "rationale": "Requiring authentication in single user mode prevents an unauthorized\nuser from rebooting the system into single user to gain root privileges\nwithout credentials.", "severity": "medium", "references": {"pcidss4": ["2.2.2", "2.2"]}, "control_references": {"pcidss4": ["2.2.2", "2.2"]}, "components": [], "identifiers": {}, "ocil_clause": "Perform the following to determine if a password is set for the\nroot user:\n<pre># grep -Eq '^root:\\$[0-9]' /etc/shadow || echo \"root is locked\"</pre>\nNo results should be returned.\nOtherwise, run the following command and follow the prompts to set a\npassword for the root user:\n<pre># passwd root</pre>", "ocil": "root password is not set", "oval_external_content": null, "fixtext": "", "checktext": "", "vuldiscussion": "", "srg_requirement": "", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {}, "platform": "system_with_kernel", "platforms": ["system_with_kernel"], "sce_metadata": {}, "inherited_platforms": [], "cpe_platform_names": ["system_with_kernel"], "inherited_cpe_platform_names": [], "bash_conditional": null, "fixes": {}, "title": "Ensure Authentication Required for Single User Mode", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/system/accounts/accounts-restrictions/root_logins/ensure_root_password_configured/rule.yml", "template": null}