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The Ubuntu operating system audit event multiplexor must be configured to off-load audit logs onto a different system or storage media from the system being audited.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-238306UBTU-20-010216SV-238306r958754_ruleCCI-001851low
Description
Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
STIGDate
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide2025-05-16

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MON-08.1Event Log Backup on Separate Physical Systems / Components
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (34) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-10Non-repudiation
1.00
AU-12Audit Record Generation
1.00
AU-12(1)System-wide and Time-correlated Audit Trail
1.00
AU-12(3)Changes by Authorized Individuals
1.00
AU-14(1)System Start-up
1.00

+24 more (top 10 by confidence shown)

CCI1 mapping
CCI-001851
1.00

Details

Check Text (C-238306r958754_chk)

Verify the audit event multiplexor is configured to offload audit records to a different system or storage media from the system being audited. Check that audisp-remote plugin is installed: $ sudo dpkg -s audispd-plugins If status is "not installed", this is a finding. Check that the records are being offloaded to a remote server with the following command: $ sudo grep -i active /etc/audisp/plugins.d/au-remote.conf active = yes If "active" is not set to "yes", or the line is commented out, this is a finding. Check that audisp-remote plugin is configured to send audit logs to a different system: $ sudo grep -i ^remote_server /etc/audisp/audisp-remote.conf remote_server = 192.168.122.126 If the "remote_server" parameter is not set, is set with a local address, or is set with an invalid address, this is a finding.

Fix Text (F-41475r654092_fix)

Configure the audit event multiplexor to offload audit records to a different system or storage media from the system being audited. Install the audisp-remote plugin: $ sudo apt-get install audispd-plugins -y Set the audisp-remote plugin as active by editing the "/etc/audisp/plugins.d/au-remote.conf" file: $ sudo sed -i -E 's/active\s*=\s*no/active = yes/' /etc/audisp/plugins.d/au-remote.conf Set the address of the remote machine by editing the "/etc/audisp/audisp-remote.conf" file: $ sudo sed -i -E 's/(remote_server\s*=).*/\1 <remote addr>/' /etc/audisp/audisp-remote.conf where <remote addr> must be substituted by the address of the remote server receiving the audit log. Make the audit service reload its configuration files: $ sudo systemctl restart auditd.service