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Guide to the Secure Configuration of Anolis OS 23

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Record Unsuccessful Access Attempts to Files - truncate

    At a minimum, the audit system should collect unauthorized file accesses for all users and root. If the <code>auditd</code> daemon is configured to...
    Rule Medium Severity
  • Record Information on Kernel Modules Loading and Unloading

    To capture kernel module loading and unloading events, use following lines, setting ARCH to either b32 for 32-bit system, or having two lines for b...
    Group
  • Ensure auditd Collects Information on Kernel Module Unloading - delete_module

    To capture kernel module unloading events, use following line, setting ARCH to either b32 for 32-bit system, or having two lines for both b32 and b...
    Rule Medium Severity
  • Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module

    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
  • Ensure auditd Collects Information on Kernel Module Loading - init_module

    To capture kernel module loading events, use following line, setting ARCH to either b32 for 32-bit system, or having two lines for both b32 and b64...
    Rule Medium Severity
  • Record Information on the Use of Privileged Commands

    At a minimum, the audit system should collect the execution of privileged commands for all users and root.
    Group
  • Ensure auditd Collects Information on the Use of Privileged Commands - init

    At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is con...
    Rule Medium Severity
  • Action for auditd to take when disk is full

    'The setting for disk_full_action in /etc/audit/auditd.conf, if multiple values are allowed write them separated by pipes as in "syslog|single|halt...
    Value
  • Ensure auditd Collects Information on the Use of Privileged Commands - poweroff

    At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is con...
    Rule Medium Severity
  • Ensure auditd Collects Information on the Use of Privileged Commands - reboot

    At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is con...
    Rule Medium Severity
  • Ensure auditd Collects Information on the Use of Privileged Commands - shutdown

    At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is con...
    Rule Medium Severity
  • Ensure auditd Collects Information on the Use of Privileged Commands

    The audit system should collect information about usage of privileged commands for all users. These are commands with suid or sgid bits on and they...
    Rule Medium Severity
  • Records Events that Modify Date and Time Information

    Arbitrary changes to the system time can be used to obfuscate nefarious activities in log files, as well as to confuse network services that are hi...
    Group
  • Record attempts to alter time through adjtimex

    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
  • Auditd priority for flushing data to disk

    The setting for flush in /etc/audit/auditd.conf
    Value
  • Number of Record to Retain Before Flushing to Disk

    The setting for freq in /etc/audit/auditd.conf
    Value
  • Maximum audit log file size for auditd

    The setting for max_log_file in /etc/audit/auditd.conf
    Value
  • Record Attempts to Alter Time Through clock_settime

    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
  • Record attempts to alter time through settimeofday

    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
  • Record Attempts to Alter Time Through stime

    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
  • Record Attempts to Alter the localtime File

    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
  • Configure auditd Data Retention

    The audit system writes data to <code>/var/log/audit/audit.log</code>. By default, <code>auditd</code> rotates 5 logs by size (6MB), retaining a ma...
    Group
  • Action for audispd to take when disk is full

    The setting for disk_full_action in /etc/audisp/audisp-remote.conf
    Value
  • Action for auditd to take when log files reach their maximum size

    The setting for max_log_file_action in /etc/audit/auditd.conf. The following options are available: <br>ignore - audit daemon does nothing. <br>sys...
    Value
  • Number of log files for auditd to retain

    The setting for num_logs in /etc/audit/auditd.conf
    Value
  • Size remaining in disk space before prompting space_left_action

    The setting for space_left (MB) in /etc/audit/auditd.conf
    Value
  • Action for auditd to take when disk space just starts to run low

    The setting for space_left_action in /etc/audit/auditd.conf
    Value
  • The percentage remaining in disk space before prompting space_left_action

    The setting for space_left as a percentage in /etc/audit/auditd.conf
    Value
  • Configure auditd to use audispd's syslog plugin

    To configure the <code>auditd</code> service to use the <code>syslog</code> plug-in of the <code>audispd</code> audit event multiplexor, set the <c...
    Rule Medium Severity
  • Configure auditd Disk Error Action on Disk Error

    The <code>auditd</code> service can be configured to take an action when there is a disk error. Edit the file <code>/etc/audit/auditd.conf</code>. ...
    Rule Medium Severity
  • Configure auditd Disk Error Action on Disk Error

    The <code>auditd</code> service can be configured to take an action when there is a disk error. Edit the file <code>/etc/audit/auditd.conf</code>. ...
    Rule Medium Severity
  • Configure auditd Disk Full Action when Disk Space Is Full

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Ed...
    Rule Medium Severity
  • Configure auditd Disk Full Action when Disk Space Is Full

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Ed...
    Rule Medium Severity
  • Configure auditd mail_acct Action on Low Disk Space

    The <code>auditd</code> service can be configured to send email to a designated account in certain situations. Add or correct the following line in...
    Rule Medium Severity
  • Configure auditd admin_space_left Action on Low Disk Space

    The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Ed...
    Rule Medium Severity
  • Configure auditd Max Log File Size

    Determine the amount of audit data (in megabytes) which should be retained in each log file. Edit the file <code>/etc/audit/auditd.conf</code>. Add...
    Rule Medium Severity
  • Configure auditd max_log_file_action Upon Reaching Maximum Log Size

    The default action to take when the logs reach their maximum size is to rotate the log files, discarding the oldest one. To configure the action ta...
    Rule Medium Severity
  • Configure auditd max_log_file_action Upon Reaching Maximum Log Size

    The default action to take when the logs reach their maximum size is to rotate the log files, discarding the oldest one. To configure the action ta...
    Rule Medium Severity
  • Configure auditd Number of Logs Retained

    Determine how many log files <code>auditd</code> should retain when it rotates logs. Edit the file <code>/etc/audit/auditd.conf</code>. Add or modi...
    Rule Medium Severity
  • Configure auditd space_left Action on Low Disk Space

    The <code>auditd</code> service can be configured to take an action when disk space <i>starts</i> to run low. Edit the file <code>/etc/audit/auditd...
    Rule Medium Severity
  • Set number of records to cause an explicit flush to audit logs

    To configure Audit daemon to issue an explicit flush to disk command after writing <xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_aud...
    Rule Medium Severity
  • Include Local Events in Audit Logs

    To configure Audit daemon to include local events in Audit logs, set <code>local_events</code> to <code>yes</code> in <code>/etc/audit/auditd.conf<...
    Rule Medium Severity
  • Resolve information before writing to audit logs

    To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set <co...
    Rule Low Severity
  • Appropriate Action Must be Setup When the Internal Audit Event Queue is Full

    The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit <code>/etc/audit/...
    Rule Medium Severity
  • Write Audit Logs to the Disk

    To configure Audit daemon to write Audit logs to the disk, set <code>write_logs</code> to <code>yes</code> in <code>/etc/audit/auditd.conf</code>. ...
    Rule Medium Severity
  • System Accounting with auditd

    The <code>auditd</code> program can perform comprehensive monitoring of system activity. This section makes use of recommended configuration settin...
    Group
  • AppArmor

    Many security vulnerabilities result from bugs in trusted programs. A trusted program runs with privileges that attackers want to possess. The prog...
    Group
  • AppArmor profiles mode

    enforce - Set all AppArmor profiles to enforce mode
    complain - Set all AppArmor profiles to complain mode
    Value
  • GRUB2 bootloader configuration

    During the boot process, the boot loader is responsible for starting the execution of the kernel and passing options to it. The boot loader allows ...
    Group
  • L1TF vulnerability mitigation

    Defines the L1TF vulneratility mitigations to employ.
    Value

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