UBTU-18-010025 - 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.

Information

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.

Solution

Configure the audit event multiplexor to off-load 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/actives*=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_servers*=).*/1 <remote addr>/' 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

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_18-04_LTS_V2R13_STIG.zip

Item Details

References: CAT|III, CCI|CCI-001851, Rule-ID|SV-219162r877390_rule, STIG-ID|UBTU-18-010025, STIG-Legacy|SV-109655, STIG-Legacy|V-100551, Vuln-ID|V-219162

Plugin: Unix

Control ID: d0ba378badb47d30c31d26b9e77d8808024746dabfc34be3d207624f7adfd533