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Risk Management Framework - RMF SP 800-37

Risk Management Framework for Information Systems and Organizations: A System Life Cycle Approach for Security and Privacy (nist.gov)

Prepare Essential activities to prepare the organization to manage security and privacy risks.

Implement the controls and document how controls are deployed.

Categorize the system and information processed, stored, and transmitted based on impact analysis. 

Assess to determine if the controls are in place, operating as intended, and producing the desired results. 

Select the set of NIST SP 800-53 controls to protect the system based on risk assessment(s)

Authorize: Senior official makes a risk-based decision to authorize the system (to operate).

Monitor: Continuously monitor control implementation and risks to the system. 
Table 1: RMF Steps Including Resources for Implementers and Supporting NIST Publications *Read More at Risk Management Framework (RMF) Overview - Risk Management | CSRC

Cybersecurity Framework

Cybersecurity Framework (CSF) Framework Core (nist.gov)

Identify –   Develop an organizational understanding to manage cybersecurity risk to systems, people, assets, data, and capabilities. The activities in the Identify Function are foundational for effective use of the Framework. Understanding the business context, the resources that support critical functions, and the related cybersecurity risks enables an organization to focus and prioritize its efforts, consistent with its risk management strategy and business needs. Examples of outcome Categories within this Function include Asset Management; Business Environment; Governance; Risk Assessment; and Risk Management Strategy.

Protect – Develop and implement appropriate safeguards to ensure delivery of critical services. The Protect Function supports the ability to limit or contain the impact of a potential cybersecurity event. Examples of outcome Categories within this Function include Identity Management and Access Control; Awareness and Training; Data Security; Information Protection Processes and Procedures; Maintenance; and Protective Technology.

Detect – Develop and implement appropriate activities to identify the occurrence of a cybersecurity event. The Detect Function enables the timely discovery of cybersecurity events. Examples of outcome Categories within this Function include Anomalies and Events; Security Continuous Monitoring; and Detection Processes. 

Respond – Develop and implement appropriate activities to take action regarding a detected cybersecurity incident. The Respond Function supports the ability to contain the impact of a potential cybersecurity incident. Examples of outcome Categories within this Function include Response Planning; Communications; Analysis; Mitigation; and Improvements.

Recover – Develop and implement appropriate activities to maintain plans for resilience and to restore any capabilities or services that were impaired due to a cybersecurity incident. The Recover Function supports timely recovery to normal operations to reduce the impact of a cybersecurity incident. Examples of outcome Categories within this Function include Recovery Planning; Improvements; and Communications. 

Read more about NIST Cybersecurity Framework CSF

Training & Professional Development

PAT meet NAT - know this stuff for your CISSP Exam (Firewall) - Application Gateways

Details
Written by: Robin Basham - from a text book somewhere
Parent Category: Services
Category: Training & Professional Development

Article Index

Page 9 of 11

Application Gateways

The application gateway, also known as an application-level firewall or application firewall, is frequently installed on a dedicated computer, separate from the filtering router, but is commonly used in conjunction with a filtering router. The application firewall is also known as a proxy server since it runs special software that acts as a proxy for a service request.

Since the proxy server is often placed in an unsecured area of the network or in the DMZ, it—rather than the Web server—is exposed to the higher levels of risk from the less trusted networks.

Additional filtering routers can be implemented behind the proxy server, limiting access to the more secure internal system and thereby further protecting internal systems.

Circuit Gateways

The circuit gateway firewall operates at the transport layer. Connections are authorized based on addresses. Like filtering firewalls, circuit gateway firewalls do not usually look at data traffic flowing between one network and another, but they do prevent direct connections between one network and another.

They accomplish this by creating tunnels that connect specific processes or systems on each side of the firewall and then allowing only authorized traffic, such as a specific type of TCP connection for only authorized users, in these tunnels.

MAC Layer Firewalls

While not as well known or widely referenced as the firewall approaches above, MAC layer firewalls are designed to operate at the media access control layer of the OSI network model. This gives these firewalls the ability to consider the specific host computer’s identity in its filtering decisions.

Using this approach, the MAC addresses of specific host computers are linked to ACL entries that identify the specific types of packets that can be sent to each host, and all other traffic is blocked.

Hybrid Firewalls

Hybrid firewalls combine the elements of other types of firewalls—that is, the elements of packet filtering and proxy services or of packet filtering and circuit gateways.

Alternately, a hybrid firewall system can consist of two separate firewall devices; each is a separate firewall system, but they are connected so that they work in tandem.

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FIPS PUB 200 Minimum Security Requirements

FIPS PUB 200 Minimum Security Requirements - Visit FIPS 200, Minimum Security Requirements for Federal Info and Info Systems | CSRC (nist.gov)
  • Access Control (AC)
  • Awareness and Training (AT)
  • Audit and Accountability (AU)
  • Certification, Accreditation, and Security Assessments (CA)
  • Configuration Management (CM)
  • Contingency Planning (CP)
  • Identification and Authentication (IA)
  • Incident Response (IR)

Read FIPS PUB 200 Minimum Security Requirements
  • Maintenance (MA)
  • Media Protection (MP)
  • Physical and Environmental Protection (PE)
  • Planning (PL)
  • Personnel Security (PS)
  • Risk Assessment (RA)
  • System and Services Acquisition (SA)
  • System and Communications Protection (SC)
  • System and Information Integrity (SI)

Standards.gov | NIST

Standards.gov | NIST
Documentary Standards can specify the definition of terms; classifications of components; delineation of procedures; specification of dimensions, materials, processes, products, systems, services, or practices; test methods and sampling procedures; or descriptions of fit and measurements of size or strength. Under the National Technology Transfer and Advancement Act (NTTAA), NIST is assigned the responsibility to coordinate federal, state, and local documentary standards and conformity assessment activities.
Standards.gov | Federal Use of Standards | Standards Incorporated by Reference (SIBR) | Industry Standards | International Standards | Military Standards | Standards Issued or Adopted by Federal Agencies | Standards Search Engines | Voluntary Product Standards

NIST Reading

Whether you're preparing for Cybersecurity certification, working with government standards, or simply starting your career in compliance, these are the NIST Federal Information Processing Standards (FIPS), Special Publication (SP), and Interagency Report (IR) topics you need to know. (The Perils of Mount Must Read™ Confessions of a Cliff Note Junky) These resources go onto the "Mountain of Must Read". If you don't recognize the standard reference, you've missed critical understanding. As of 2022, this is the minimum NIST alphabet. All of these documents are found at https://csrc.nist.gov/publications/ Be very careful about static content. Look at links before you launch them. Never use alternate sites for the Computer Security Resource Center. Get the full list here <NIST Reading Extended>

FIPS Publication 140-2 Security Requirements for Cryptographic Modules [FIPS 140-2]
FIPS Publication 199 Standards for Security Categorization of Federal Information and Information Systems [FIPS 199]
FIPS Publication 200 Minimum Security Requirements for Federal Information and Information Systems [FIPS 200]
FIPS Publication 201-1 Personal Identity Verification (PIV) of Federal Employees and Contractors [FIPS 201-1]		 NISTIR 8212 ISCMA: An Information Security Continuous Monitoring Program Assessment
NIST SP 800-18 Guide for Developing Security Plans for Federal Information Systems [SP 800-18]
NIST SP 800-30 Risk Management Guide for Information Technology Systems [NIST SP 800-30]
NIST SP 800-34 Contingency Planning Guide for Federal Information Systems [SP 800-34]

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