The operating system must protect against an individual falsely denying having performed a particular action. In order to do so the system must be configured to send audit records to a remote audit server.

Description

<VulnDiscussion>Keeping audit records on a remote system reduces the likelihood of audit records being changed or corrupted. Duplicating and protecting the audit trail on a separate system reduces the likelihood of an individual being able to deny performing an action. Solaris has supported rsyslog since version 11.1 and the differences between syslog and rsyslog are numerous. Solaris 11.4 installs rsyslog by default, but previous versions require a manual installation. When establishing a rsyslog server to forward to, it is important to consider the network requirements for this action. Note the following configuration options: There are three ways to forward message: the traditional UDP transport, which is extremely lossy but standard; the plain TCP based transport, which loses messages only during certain situations but is widely available; and the RELP transport, which does not lose messages but is currently available only as part of the rsyslogd 3.15.0 and above. Examples of each configuration: UDP *.* @remotesystemname TCP *.* @@remotesystemname RELP *.* :omrelp:remotesystemname:2514 Please note that a port number was given as there is no standard port for RELP.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>