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Rules and Groups employed by this XCCDF Profile

  • SRG-APP-000090-AU-000070

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must allow only the individuals appointed by the Information System Security Manager (ISSM) to have full admin rights to the system.

    &lt;VulnDiscussion&gt;Without restricting which roles and individuals can select which events are audited, unauthorized personnel may be able to pr...
    Rule Low Severity
  • SRG-APP-000358-AU-000100

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must be configured to offload log records onto a different system or media than the system being audited.

    &lt;VulnDiscussion&gt;Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Offloading is a common ...
    Rule Medium Severity
  • SRG-APP-000359-AU-000120

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must be configured to send an immediate alert to the system administrator (SA) and information system security officer (ISSO) (at a minimum) when allocated log record storage volume reaches 75 percent of the repository maximum log record storage capacity.

    &lt;VulnDiscussion&gt;If security personnel are not notified immediately upon storage volume utilization reaching 75 percent, they are unable to pl...
    Rule Low Severity
  • SRG-APP-000360-AU-000130

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must notify the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) of all audit failure events, such as loss of communications with hosts and devices, or if log records are no longer being received.

    &lt;VulnDiscussion&gt;It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....
    Rule Low Severity
  • SRG-APP-000361-AU-000140

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must notify the System Administrator (SA) or Information System Security Officer (ISSO) if communication with the host and devices within its scope of coverage is lost.

    &lt;VulnDiscussion&gt;If the system were to continue processing after audit failure, actions could be taken on the system that could not be tracked...
    Rule Low Severity
  • SRG-APP-000118-AU-000100

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise installation directories must be secured.

    &lt;VulnDiscussion&gt;If audit data were to become compromised, then competent forensic analysis and discovery of the true source of potentially ma...
    Rule Medium Severity
  • SRG-APP-000125-AU-000300

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must be configured to back up the log records repository at least every seven days onto a different system or system component other than the system or component being audited.

    &lt;VulnDiscussion&gt;Protection of log data includes ensuring log data is not accidentally lost or deleted. Backing up log records to a different ...
    Rule Low Severity
  • SRG-APP-000516-AU-000330

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must be configured to retain the identity of the original source host or device where the event occurred as part of the log record.

    &lt;VulnDiscussion&gt;In this case the information producer is the device based on IP address or some other identifier of the device producing the ...
    Rule Medium Severity
  • SRG-APP-000516-AU-000340

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must use TCP for data transmission.

    &lt;VulnDiscussion&gt;If the UDP protocol is used for communication, then data packets that do not reach the server are not detected as a data loss...
    Rule Medium Severity
  • SRG-APP-000516-AU-000350

    <GroupDescription></GroupDescription>
    Group
  • Splunk Enterprise must be configured with a report to notify the System Administrator (SA) and Information System Security Officer (ISSO), at a minimum, when an attack is detected on multiple devices and hosts within its scope of coverage.

    &lt;VulnDiscussion&gt;Detecting when multiple systems are showing anomalies can often indicate an attack. Notifying appropriate personnel can initi...
    Rule Medium Severity

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