Intrusion Detection and Prevention Systems Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000018
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SRG-NET-000019
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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.
The IDPS enforces approved authorizations by controlling the flow of information between interconnected networks to prevent harmful or suspicious traffic does spread to these interconnected network...Rule Medium Severity -
SRG-NET-000019
Group -
SRG-NET-000074
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SRG-NET-000075
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The IDPS must produce audit records containing information to establish when (date and time) the events occurred.
Without establishing the time (date/time) an event occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Associating the date and ti...Rule Medium Severity -
SRG-NET-000076
Group -
SRG-NET-000077
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The IDPS must produce audit records containing information to establish the source of the event, including, at a minimum, originating source address.
Associating the source of the event with detected events in the logs provides a means of investigating an attack or suspected attack. While auditing and logging are closely related, they are not t...Rule Medium Severity -
SRG-NET-000078
Group -
SRG-NET-000091
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The IDPS must provide log information in a format that can be extracted and used by centralized analysis tools.
Centralized review and analysis of log records from multiple IDPS components gives the organization the capability to better detect distributed attacks and provides increased data points for behavi...Rule Medium Severity -
SRG-NET-000113
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SRG-NET-000113
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The IDPS must provide audit record generation capability for events where communication traffic is blocked or restricted based on policy filters, rules, signatures, and anomaly analysis.
Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident, or identify those responsible for one. While au...Rule Medium Severity -
SRG-NET-000113
Group -
The IDPS must provide audit record generation with a configurable severity and escalation level capability.
Without the capability to generate audit records with a severity code it is difficult to track and handle detection events. While auditing and logging are closely related, they are not the same. L...Rule Medium Severity -
SRG-NET-000131
Group -
The IDPS must be configured to remove or disable non-essential capabilities which are not required for operation or not related to IDPS functionality (e.g., DNS, email client or server, FTP server, or web server).
An IDPS can be capable of providing a wide variety of capabilities. Not all of these capabilities are necessary. Unnecessary services, functions, and applications increase the attack surface (sum o...Rule Medium Severity
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