The Ubuntu operating system audit event multiplexor must be configured to off-load audit logs onto a different system in real time, if the system is interconnected.

An XCCDF Rule

Description

<VulnDiscussion>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.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

ID: SV-219153r853361_rule
Severity: Low
References: CCI-001851
Updated: 9 months ago

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/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>/' 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

The Ubuntu operating system audit event multiplexor must be configured to off-load audit logs onto a different system in real time, if the system is interconnected.

Description

Remediation - Manual Procedure