I - Mission Critical Public
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000018
<GroupDescription></GroupDescription>Group -
The IDPS must enforce approved authorizations by restricting or blocking the flow of harmful or suspicious communications traffic within the network as defined in the PPSM CAL and vulnerability assessments.
<VulnDiscussion>The flow of all communications traffic must be monitored and controlled so it does not introduce any unacceptable risk to the...Rule Medium Severity -
SRG-NET-000019
<GroupDescription></GroupDescription>Group -
The IDPS must restrict or block harmful or suspicious communications traffic between interconnected networks based on attribute- and content-based inspection of the source, destination, headers, and/or content of the communications traffic.
<VulnDiscussion>The IDPS enforces approved authorizations by controlling the flow of information between interconnected networks to prevent h...Rule Medium Severity -
SRG-NET-000019
<GroupDescription></GroupDescription>Group -
The IDPS must immediately use updates made to policy filters, rules, signatures, and anomaly analysis algorithms for traffic detection and prevention functions.
<VulnDiscussion>Information flow policies regarding dynamic information flow control include, for example, allowing or disallowing informatio...Rule Medium Severity -
SRG-NET-000074
<GroupDescription></GroupDescription>Group -
The IDPS must produce audit records containing sufficient information to establish what type of event occurred, including, at a minimum, event descriptions, policy filter, rule or signature invoked, port, protocol, and criticality level/alert code or description.
<VulnDiscussion>Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events l...Rule Medium Severity -
SRG-NET-000075
<GroupDescription></GroupDescription>Group -
The IDPS must produce audit records containing information to establish when (date and time) the events occurred.
<VulnDiscussion>Without establishing the time (date/time) an event occurred, it would be difficult to establish, correlate, and investigate t...Rule Medium Severity -
SRG-NET-000076
<GroupDescription></GroupDescription>Group -
The IDPS must produce audit records containing information to establish where the event was detected, including, at a minimum, network segment, destination address, and IDPS component which detected the event.
<VulnDiscussion>Associating where the event was detected with the event log entries provides a means of investigating an attack or identifyin...Rule Medium Severity -
SRG-NET-000077
<GroupDescription></GroupDescription>Group -
The IDPS must produce audit records containing information to establish the source of the event, including, at a minimum, originating source address.
<VulnDiscussion>Associating the source of the event with detected events in the logs provides a means of investigating an attack or suspected...Rule Medium Severity -
SRG-NET-000078
<GroupDescription></GroupDescription>Group -
The IDPS must produce audit records containing information to establish the outcome of events associated with detected harmful or potentially harmful traffic, including, at a minimum, capturing all associated communications traffic.
<VulnDiscussion>Associating event outcome with detected events in the log provides a means of investigating an attack or suspected attack. W...Rule Medium Severity -
SRG-NET-000089
<GroupDescription></GroupDescription>Group -
In the event of a logging failure, caused by loss of communications with the central logging server, the IDPS must queue audit records locally until communication is restored or until the audit records are retrieved manually or using automated synchronization tools.
<VulnDiscussion>It is critical that when the IDPS is at risk of failing to process audit logs as required, it take action to mitigate the fai...Rule Medium Severity -
SRG-NET-000089
<GroupDescription></GroupDescription>Group -
In the event of a logging failure caused by the lack of audit record storage capacity, the IDPS must continue generating and storing audit records if possible, overwriting the oldest audit records in a first-in-first-out manner.
<VulnDiscussion>It is critical that when the IDPS is at risk of failing to process audit logs as required, it takes action to mitigate the fa...Rule Medium Severity
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