Description:
System monitoring includes external and internal monitoring. External monitoring includes the observation of events occurring at the system boundary (i.e., part of perimeter defense and boundary protection). Internal monitoring includes the observation of events occurring within the system. Organizations can monitor systems, for example, by observing audit record activities in real-time or by observing other system aspects such as access patterns, characteristics of access, and other actions. The monitoring objectives may guide the determination of the events. System monitoring capability is achieved through a variety of tools and techniques (e.g., intrusion detection systems, intrusion prevention systems, malicious code protection software, scanning tools, audit record monitoring software, and network monitoring software). Strategic locations for monitoring devices include selected perimeter locations and near server farms supporting critical applications, with such devices being employed at managed system interfaces. The granularity of monitoring information collected is based on organizational monitoring objectives and the capability of systems to support such objectives. System monitoring is an integral part of continuous monitoring and incident response programs. Output from system monitoring serves as input to continuous monitoring and incident response programs. A network connection is any connection with a device that communicates through a network (e.g., local area network, Internet). A remote connection is any connection with a device communicating through an external network (e.g., the Internet). Local, network and remote connections can be either wired or wireless. Unusual or unauthorized activities or conditions related to inbound/outbound communications traffic include internal traffic that indicates the presence of malicious code in systems or propagating among system components, the unauthorized exporting of information, or signaling to external systems. Evidence of malicious code is used to identify potentially compromised systems or system components. System monitoring requirements, including the need for specific types of system monitoring, may be referenced in other requirements. [SP 800-94] provides guidance on intrusion detection and prevention systems.
Priority: High
Category: Situational Awareness
Services Associated with AWS:
- Amazon GuardDuty
- AWS WAF
- AWS Security Hub
- AWS CloudTrail
- Amazon Inspector
- AWS Systems Manager
Objective Evidence:
- Administrative: documented policies, standards & procedures
- Administrative: supporting documentation to demonstrate Indicators of Compromise (IoC)
- Administrative: supporting documentation to demonstrate how Network Intrusion Detection / Prevention (NIDS/NIPS) are deployed and maintained
- Administrative: supporting documentation to demonstrate how File Integrity Monitoring (FIM) are deployed and maintained
- Administrative: supporting documentation of threat intelligence feeds to maintain situational awareness
- Administrative: supporting documentation of role-based security training being performed
- Administrative: supporting documentation of professional competence by individual(s) performing event log analysis and response roles
- Technical: screen shot of logs from SIEM
- Technical: screen shot of logs from NIDS/NIPS
- Technical: screen shot of logs from FIM
Possible Technology Considerations :
- Security Information & Event Management (SIEM)
- Network Baselines
What needs to be answered?
Does the company monitor the information system to detect attacks and indicators of potential attacks, as well as unauthorized local, network, and remote connections? Will the company strategically deploy monitoring devices within the information system to collect essential information? Is the information gained from these monitoring tools protected from unauthorized access, modification, and deletion? Does the system monitor inbound and outbound communications for unusual or unauthorized activities or conditions?
- External System Monitoring Check
Description: This check verifies that external monitoring of system events occurring at the system boundary is in place. It ensures that tools and techniques, such as intrusion detection systems and network monitoring software, are used to observe events and detect potential attacks targeting perimeter defenses and boundary protections.
Internal System Monitoring Check
Description: This check ensures that internal monitoring of system events occurring within the system is implemented. It verifies that tools and techniques, such as audit record monitoring software and intrusion prevention systems, are used to observe events and detect unauthorized access, unusual activities, or the presence of malicious code within the system.
Check Name: Continuous Monitoring Integration Check
Description: This check verifies that system monitoring is integrated as part of the continuous monitoring and incident response programs. It ensures that the output from system monitoring serves as valuable input for continuous monitoring and incident response, enabling prompt detection and response to security incidents.
More Details:
Inbound and outbound communications monitored and proactively reviewed by IT support staff.