+SI-04 [M] System Monitoring
---+SI-04(02) [M] Automated Tools and Mechanisms for Real-time Analysis
---+SI-04(04) [M] Inbound and Outbound Communications Traffic
---+SI-04(05) [M] System-generated Alerts

SI-04 [M] System Monitoring

Control

  1. Monitor the system to detect:
    1. Attacks and indicators of potential attacks in accordance with the following monitoring objectives: [Assignement: monitoring objectives] ; and
    2. Unauthorized local, network, and remote connections;
  2. Identify unauthorized use of the system through the following techniques and methods: [Assignement: techniques and methods];
  3. Invoke internal monitoring capabilities or deploy monitoring devices:
    1. Strategically within the system to collect organization-determined essential information; and
    2. At ad hoc locations within the system to track specific types of transactions of interest to the organization;
  4. Analyze detected events and anomalies;
  5. Adjust the level of system monitoring activity when there is a change in risk to organizational operations and assets, individuals, other organizations, or the Nation;
  6. Obtain legal opinion regarding system monitoring activities; and
  7. Provide [Assignement: system monitoring information] to [Assignement: personnel or roles] [Selection(one-or-more): as needed; {{ insert: param, si-04_odp.06 }} ].

Discussion

System monitoring includes external and internal monitoring. External monitoring includes the observation of events occurring at external interfaces to the system. Internal monitoring includes the observation of events occurring within the system. Organizations monitor systems by observing audit activities in real time or by observing other system aspects such as access patterns, characteristics of access, and other actions. The monitoring objectives guide and inform the determination of the events. System monitoring capabilities are achieved through a variety of tools and techniques, including intrusion detection and prevention systems, malicious code protection software, scanning tools, audit record monitoring software, and network monitoring software. Depending on the security architecture, the distribution and configuration of monitoring devices may impact throughput at key internal and external boundaries as well as at other locations across a network due to the introduction of network throughput latency. If throughput management is needed, such devices are strategically located and deployed as part of an established organization-wide security architecture. Strategic locations for monitoring devices include selected perimeter locations and near key servers and server farms that support critical applications. Monitoring devices are typically employed at the managed interfaces associated with controls [SC-7](#sc-7) and [AC-17](#ac-17) . The information collected is a function of the organizational monitoring objectives and the capability of systems to support such objectives. Specific types of transactions of interest include Hypertext Transfer Protocol (HTTP) traffic that bypasses HTTP proxies. System monitoring is an integral part of organizational continuous monitoring and incident response programs, and output from system monitoring serves as input to those programs. System monitoring requirements, including the need for specific types of system monitoring, may be referenced in other controls (e.g., [AC-2g](#ac-2_smt.g), [AC-2(7)](#ac-2.7), [AC-2(12)(a)](#ac-2.12_smt.a), [AC-17(1)](#ac-17.1), [AU-13](#au-13), [AU-13(1)](#au-13.1), [AU-13(2)](#au-13.2), [CM-3f](#cm-3_smt.f), [CM-6d](#cm-6_smt.d), [MA-3a](#ma-3_smt.a), [MA-4a](#ma-4_smt.a), [SC-5(3)(b)](#sc-5.3_smt.b), [SC-7a](#sc-7_smt.a), [SC-7(24)(b)](#sc-7.24_smt.b), [SC-18b](#sc-18_smt.b), [SC-43b](#sc-43_smt.b) ). Adjustments to levels of system monitoring are based on law enforcement information, intelligence information, or other sources of information. The legality of system monitoring activities is based on applicable laws, executive orders, directives, regulations, policies, standards, and guidelines.

Assessment Objective

    1. the system is monitored to detect attacks and indicators of potential attacks in accordance with [Assignement: monitoring objectives];
      1. the system is monitored to detect unauthorized local connections;
      2. the system is monitored to detect unauthorized network connections;
      3. the system is monitored to detect unauthorized remote connections;
  1. unauthorized use of the system is identified through [Assignement: techniques and methods];
    1. internal monitoring capabilities are invoked or monitoring devices are deployed strategically within the system to collect organization-determined essential information;
    2. internal monitoring capabilities are invoked or monitoring devices are deployed at ad hoc locations within the system to track specific types of transactions of interest to the organization;
    1. detected events are analyzed;
    2. detected anomalies are analyzed;
  2. the level of system monitoring activity is adjusted when there is a change in risk to organizational operations and assets, individuals, other organizations, or the Nation;
  3. a legal opinion regarding system monitoring activities is obtained;
  4. [Assignement: system monitoring information] is provided to [Assignement: personnel or roles] [Selection(one-or-more): as needed; {{ insert: param, si-04_odp.06 }} ].

Assessment Method

Examine

System and information integrity policy system and information integrity procedures procedures addressing system monitoring tools and techniques continuous monitoring strategy facility diagram/layout system design documentation system monitoring tools and techniques documentation locations within the system where monitoring devices are deployed system configuration settings and associated documentation system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities organizational personnel installing, configuring, and/or maintaining the system organizational personnel responsible for monitoring the system

1. Επισκόπηση

Τίτλος Πρότυπο
SI-04(02) [M] Automated Tools and Mechanisms for Real-time Analysis

Control

Employ automated tools and mechanisms to support near real-time analysis of events.

Discussion

Automated tools and mechanisms include host-based, network-based, transport-based, or storage-based event monitoring tools and mechanisms or security information and event management (SIEM) technologies that provide real-time analysis of alerts and notifications generated by organizational systems. Automated monitoring techniques can create unintended privacy risks because automated controls may connect to external or otherwise unrelated systems. The matching of records between these systems may create linkages with unintended consequences. Organizations assess and document these risks in their privacy impact assessment and make determinations that are in alignment with their privacy program plan.

Assessment Objective

automated tools and mechanisms are employed to support a near real-time analysis of events.

Assessment Method

Examine

System and information integrity policy system and information integrity procedures procedures addressing system monitoring tools and techniques system design documentation system monitoring tools and techniques documentation system configuration settings and associated documentation system audit records system security plan privacy plan privacy program plan privacy impact assessment privacy risk management documentation other relevant documents or records

Interview

System/network administrators organizational personnel with information security and privacy responsibilities organizational personnel installing, configuring, and/or maintaining the system organizational personnel responsible for monitoring the system organizational personnel responsible for incident response/management
SI-04(04) [M] Inbound and Outbound Communications Traffic

Control

  1. Determine criteria for unusual or unauthorized activities or conditions for inbound and outbound communications traffic;
  2. Monitor inbound and outbound communications traffic [Assignement: organization-defined frequency] for [Assignement: organization-defined unusual or unauthorized activities or conditions].

Discussion

Unusual or unauthorized activities or conditions related to system inbound and outbound communications traffic includes internal traffic that indicates the presence of malicious code or unauthorized use of legitimate code or credentials within organizational systems or propagating among system components, signaling to external systems, and the unauthorized exporting of information. Evidence of malicious code or unauthorized use of legitimate code or credentials is used to identify potentially compromised systems or system components.

Assessment Objective

    1. criteria for unusual or unauthorized activities or conditions for inbound communications traffic are defined;
    2. criteria for unusual or unauthorized activities or conditions for outbound communications traffic are defined;
    1. inbound communications traffic is monitored [Assignement: frequency] for [Assignement: unusual or unauthorized activities or conditions];
    2. outbound communications traffic is monitored [Assignement: frequency] for [Assignement: unusual or unauthorized activities or conditions].

Assessment Method

Examine

System and information integrity policy system and information integrity procedures procedures addressing system monitoring tools and techniques system design documentation system monitoring tools and techniques documentation system configuration settings and associated documentation system protocols system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities organizational personnel installing, configuring, and/or maintaining the system organizational personnel responsible for monitoring the system organizational personnel responsible for the intrusion detection system
SI-04(05) [M] System-generated Alerts

Control

Alert [Assignement: personnel or roles] when the following system-generated indications of compromise or potential compromise occur: [Assignement: compromise indicators].

Discussion

Alerts may be generated from a variety of sources, including audit records or inputs from malicious code protection mechanisms, intrusion detection or prevention mechanisms, or boundary protection devices such as firewalls, gateways, and routers. Alerts can be automated and may be transmitted telephonically, by electronic mail messages, or by text messaging. Organizational personnel on the alert notification list can include system administrators, mission or business owners, system owners, information owners/stewards, senior agency information security officers, senior agency officials for privacy, system security officers, or privacy officers. In contrast to alerts generated by the system, alerts generated by organizations in [SI-4(12)](#si-4.12) focus on information sources external to the system, such as suspicious activity reports and reports on potential insider threats.

Assessment Objective

[Assignement: personnel or roles] are alerted when system-generated [Assignement: compromise indicators] occur.

Assessment Method

Examine

System and information integrity policy system and information integrity procedures procedures addressing system monitoring tools and techniques system monitoring tools and techniques documentation system configuration settings and associated documentation list of personnel selected to receive alerts documentation of alerts generated based on compromise indicators system audit records system security plan privacy plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security and privacy responsibilities system developers organizational personnel installing, configuring, and/or maintaining the system organizational personnel responsible for monitoring the system organizational personnel on the system alert notification list organizational personnel responsible for the intrusion detection system

1.1 Παραπομπές

1.2 Εντοπισμένες απαιτήσεις

1.3 Σχετικοί κανονισμοί

2. Εντοπισμένες απαιτήσεις

Απαιτήσεις
Πηγή Απαίτηση

3. Σχετικοί κανονισμοί

Κανονισμοί
Πηγή Κανονισμός

Συνδεδεμένα ζητήματα