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Guide to the Secure Configuration of Red Hat Enterprise Linux 7

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Sensible umask

    Enter default user umask
    Value
    Show

  • Ensure the Default Bash Umask is Set Correctly

    To ensure the default umask for users of the Bash shell is set properly, add or correct the <code>umask</code> setting in <code>/etc/bashrc</code> ...
    Rule Medium Severity
    Show

  • Ensure the Default C Shell Umask is Set Correctly

    To ensure the default umask for users of the C shell is set properly, add or correct the <code>umask</code> setting in <code>/etc/csh.cshrc</code> ...
    Rule Medium Severity
    Show

  • Ensure the Default Umask is Set Correctly in login.defs

    To ensure the default umask controlled by <code>/etc/login.defs</code> is set properly, add or correct the <code>UMASK</code> setting in <code>/etc...
    Rule Medium Severity
    Show

  • Ensure the Default Umask is Set Correctly in /etc/profile

    To ensure the default umask controlled by <code>/etc/profile</code> is set properly, add or correct the <code>umask</code> setting in <code>/etc/pr...
    Rule Medium Severity
    Show

  • Ensure the Default Umask is Set Correctly For Interactive Users

    Remove the UMASK environment variable from all interactive users initialization files.
    Rule Medium Severity
    Show

  • System Accounting with auditd

    The audit service provides substantial capabilities for recording system activities. By default, the service audits about SELinux AVC denials and c...
    Group
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  • Install audispd-plugins Package

    The audispd-plugins package can be installed with the following command: 
    $ sudo yum install audispd-plugins
    Rule Medium Severity
    Show

  • Ensure the default plugins for the audit dispatcher are Installed

    The audit-audispd-plugins package should be installed.
    Rule Medium Severity
    Show

  • Ensure the audit-libs package as a part of audit Subsystem is Installed

    The audit-libs package should be installed.
    Rule Medium Severity
    Show

  • Ensure the audit Subsystem is Installed

    The audit package should be installed.
    Rule Medium Severity
    Show

  • Enable auditd Service

    The <code>auditd</code> service is an essential userspace component of the Linux Auditing System, as it is responsible for writing audit records to...
    Rule Medium Severity
    Show

  • Enable Auditing for Processes Which Start Prior to the Audit Daemon

    To ensure all processes can be audited, even those which start prior to the audit daemon, add the argument <code>audit=1</code> to the default GRUB...
    Rule Low Severity
    Show

  • Make the auditd Configuration Immutable

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Vendor Approved Time Servers

    The list of vendor-approved time servers
    Value
    Show

  • Extend Audit Backlog Limit for the Audit Daemon

    To improve the kernel capacity to queue all log events, even those which occurred prior to the audit daemon, add the argument <code>audit_backlog_l...
    Rule Low Severity
    Show

  • Configure auditd Rules for Comprehensive Auditing

    The <code>auditd</code> program can perform comprehensive monitoring of system activity. This section describes recommended configuration settings ...
    Group
    Show

  • Audit failure mode

    This variable is the setting for the -f option in Audit configuration which sets the failure mode of audit. This option lets you determine how you ...
    Value
    Show

  • Record Events that Modify User/Group Information via open syscall - /etc/group

    The audit system should collect write events to /etc/group file for all users and root. If the <code>auditd</code> daemon is configured to use the ...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open_by_handle_at syscall - /etc/group

    The audit system should collect write events to /etc/group file for all group and root. If the <code>auditd</code> daemon is configured to use the ...
    Rule Medium Severity
    Show

  • Record Events that Modify the System's Mandatory Access Controls

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via openat syscall - /etc/group

    The audit system should collect write events to /etc/group file for all users and root. If the <code>auditd</code> daemon is configured to use the ...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open syscall - /etc/gshadow

    The audit system should collect write events to /etc/gshadow file for all users and root. If the <code>auditd</code> daemon is configured to use th...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open_by_handle_at syscall - /etc/gshadow

    The audit system should collect write events to /etc/gshadow file for all users and root. If the <code>auditd</code> daemon is configured to use th...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via openat syscall - /etc/gshadow

    The audit system should collect write events to /etc/gshadow file for all users and root. If the <code>auditd</code> daemon is configured to use th...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open syscall - /etc/passwd

    The audit system should collect write events to /etc/passwd file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open_by_handle_at syscall - /etc/passwd

    The audit system should collect write events to /etc/passwd file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via openat syscall - /etc/passwd

    The audit system should collect write events to /etc/passwd file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open syscall - /etc/shadow

    The audit system should collect write events to /etc/shadow file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via open_by_handle_at syscall - /etc/shadow

    The audit system should collect write events to /etc/shadow file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information via openat syscall - /etc/shadow

    The audit system should collect write events to /etc/shadow file for all users and root. If the <code>auditd</code> daemon is configured to use the...
    Rule Medium Severity
    Show

  • Record Events that Modify the System's Mandatory Access Controls in usr/share

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Ensure auditd Collects Information on Exporting to Media (successful)

    At a minimum, the audit system should collect media exportation events for all users and root. If the <code>auditd</code> daemon is configured to u...
    Rule Medium Severity
    Show

  • Record Events that Modify the System's Network Environment

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Attempts to Alter Process and Session Initiation Information

    The audit system already collects process information for all users and root. If the <code>auditd</code> daemon is configured to use the <code>auge...
    Rule Medium Severity
    Show

  • Record Events When Privileged Executables Are Run

    Verify the system generates an audit record when privileged functions are executed. If audit is using the "auditctl" tool to load the rules, run t...
    Rule Medium Severity
    Show

  • Ensure auditd Collects System Administrator Actions

    At a minimum, the audit system should collect administrator actions for all users and root. If the <code>auditd</code> daemon is configured to use ...
    Rule Medium Severity
    Show

  • Shutdown System When Auditing Failures Occur

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information - /etc/group

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information - /etc/gshadow

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information - /etc/security/opasswd

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information - /etc/passwd

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Events that Modify User/Group Information - /etc/shadow

    If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program to read audit rules during daemon startup (the default),...
    Rule Medium Severity
    Show

  • Record Access Events to Audit Log Directory

    The audit system should collect access events to read audit log directory. The following audit rule will assure that access to audit log directory ...
    Rule Medium Severity
    Show

  • System Audit Logs Must Have Mode 0750 or Less Permissive

    If <code>log_group</code> in <code>/etc/audit/auditd.conf</code> is set to a group other than the <code>root</code> group account, change the mode...
    Rule Medium Severity
    Show

  • Audit Configuration Files Must Be Owned By Group root

    All audit configuration files must be owned by group root. 
    chown :root /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*
    Rule Medium Severity
    Show

  • Audit Configuration Files Must Be Owned By Root

    All audit configuration files must be owned by root user. To properly set the owner of <code>/etc/audit/</code>, run the command: <pre>$ sudo chow...
    Rule Medium Severity
    Show

  • System Audit Logs Must Be Owned By Root

    All audit logs must be owned by root user and group. By default, the path for audit log is <pre>/var/log/audit/</pre>. To properly set the owner o...
    Rule Medium Severity
    Show

  • Audit Configuration Files Permissions are 640 or More Restrictive

    All audit configuration files permissions must be 640 or more restrictive. 
    chmod 0640 /etc/audit/audit*.{rules,conf} /etc/audit/rules.d/*
    Rule Medium Severity
    Show

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