
- •Acknowledgments
- •About the Authors
- •About the Technical Editors
- •Contents at a Glance
- •Contents
- •Foreword
- •Introduction
- •Overview of the CISSP Exam
- •The Elements of This Study Guide
- •Study Guide Exam Objectives
- •Objective Map
- •Reader Support for This Book
- •Security 101
- •Confidentiality
- •Integrity
- •Availability
- •Protection Mechanisms
- •Security Boundaries
- •Third-Party Governance
- •Documentation Review
- •Manage the Security Function
- •Alignment of Security Function to Business Strategy, Goals, Mission, and Objectives
- •Organizational Processes
- •Organizational Roles and Responsibilities
- •Security Control Frameworks
- •Due Diligence and Due Care
- •Security Policy, Standards, Procedures, and Guidelines
- •Security Policies
- •Security Standards, Baselines, and Guidelines
- •Security Procedures
- •Threat Modeling
- •Identifying Threats
- •Determining and Diagramming Potential Attacks
- •Performing Reduction Analysis
- •Prioritization and Response
- •Supply Chain Risk Management
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Job Descriptions and Responsibilities
- •Candidate Screening and Hiring
- •Onboarding: Employment Agreements and Policies
- •Employee Oversight
- •Compliance Policy Requirements
- •Privacy Policy Requirements
- •Understand and Apply Risk Management Concepts
- •Risk Terminology and Concepts
- •Asset Valuation
- •Identify Threats and Vulnerabilities
- •Risk Assessment/Analysis
- •Risk Responses
- •Cost vs. Benefit of Security Controls
- •Countermeasure Selection and Implementation
- •Applicable Types of Controls
- •Security Control Assessment
- •Monitoring and Measurement
- •Risk Reporting and Documentation
- •Continuous Improvement
- •Risk Frameworks
- •Social Engineering
- •Social Engineering Principles
- •Eliciting Information
- •Prepending
- •Phishing
- •Spear Phishing
- •Whaling
- •Smishing
- •Vishing
- •Spam
- •Shoulder Surfing
- •Invoice Scams
- •Hoax
- •Impersonation and Masquerading
- •Tailgating and Piggybacking
- •Dumpster Diving
- •Identity Fraud
- •Typo Squatting
- •Influence Campaigns
- •Awareness
- •Training
- •Education
- •Improvements
- •Effectiveness Evaluation
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Planning for Business Continuity
- •Project Scope and Planning
- •Organizational Review
- •BCP Team Selection
- •Resource Requirements
- •Legal and Regulatory Requirements
- •Business Impact Analysis
- •Identifying Priorities
- •Risk Identification
- •Likelihood Assessment
- •Impact Analysis
- •Resource Prioritization
- •Continuity Planning
- •Strategy Development
- •Provisions and Processes
- •Plan Approval and Implementation
- •Plan Approval
- •Plan Implementation
- •Training and Education
- •BCP Documentation
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Categories of Laws
- •Criminal Law
- •Civil Law
- •Administrative Law
- •Laws
- •Computer Crime
- •Intellectual Property (IP)
- •Licensing
- •Import/Export
- •Privacy
- •State Privacy Laws
- •Compliance
- •Contracting and Procurement
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Defining Sensitive Data
- •Defining Data Classifications
- •Defining Asset Classifications
- •Understanding Data States
- •Determining Compliance Requirements
- •Determining Data Security Controls
- •Data Maintenance
- •Data Loss Prevention
- •Marking Sensitive Data and Assets
- •Handling Sensitive Information and Assets
- •Data Collection Limitation
- •Data Location
- •Storing Sensitive Data
- •Data Destruction
- •Ensuring Appropriate Data and Asset Retention
- •Data Protection Methods
- •Digital Rights Management
- •Cloud Access Security Broker
- •Pseudonymization
- •Tokenization
- •Anonymization
- •Understanding Data Roles
- •Data Owners
- •Asset Owners
- •Business/Mission Owners
- •Data Processors and Data Controllers
- •Data Custodians
- •Administrators
- •Users and Subjects
- •Using Security Baselines
- •Comparing Tailoring and Scoping
- •Standards Selection
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Cryptographic Foundations
- •Goals of Cryptography
- •Cryptography Concepts
- •Cryptographic Mathematics
- •Ciphers
- •Modern Cryptography
- •Cryptographic Keys
- •Symmetric Key Algorithms
- •Asymmetric Key Algorithms
- •Hashing Algorithms
- •Symmetric Cryptography
- •Cryptographic Modes of Operation
- •Data Encryption Standard
- •Triple DES
- •International Data Encryption Algorithm
- •Blowfish
- •Skipjack
- •Rivest Ciphers
- •Advanced Encryption Standard
- •CAST
- •Comparison of Symmetric Encryption Algorithms
- •Symmetric Key Management
- •Cryptographic Lifecycle
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Asymmetric Cryptography
- •Public and Private Keys
- •ElGamal
- •Elliptic Curve
- •Diffie–Hellman Key Exchange
- •Quantum Cryptography
- •Hash Functions
- •RIPEMD
- •Comparison of Hash Algorithm Value Lengths
- •Digital Signatures
- •HMAC
- •Digital Signature Standard
- •Public Key Infrastructure
- •Certificates
- •Certificate Authorities
- •Certificate Lifecycle
- •Certificate Formats
- •Asymmetric Key Management
- •Hybrid Cryptography
- •Applied Cryptography
- •Portable Devices
- •Web Applications
- •Steganography and Watermarking
- •Networking
- •Emerging Applications
- •Cryptographic Attacks
- •Salting Saves Passwords
- •Ultra vs. Enigma
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Secure Design Principles
- •Objects and Subjects
- •Closed and Open Systems
- •Secure Defaults
- •Fail Securely
- •Keep It Simple
- •Zero Trust
- •Privacy by Design
- •Trust but Verify
- •Techniques for Ensuring CIA
- •Confinement
- •Bounds
- •Isolation
- •Access Controls
- •Trust and Assurance
- •Trusted Computing Base
- •State Machine Model
- •Information Flow Model
- •Noninterference Model
- •Take-Grant Model
- •Access Control Matrix
- •Bell–LaPadula Model
- •Biba Model
- •Clark–Wilson Model
- •Brewer and Nash Model
- •Goguen–Meseguer Model
- •Sutherland Model
- •Graham–Denning Model
- •Harrison–Ruzzo–Ullman Model
- •Select Controls Based on Systems Security Requirements
- •Common Criteria
- •Authorization to Operate
- •Understand Security Capabilities of Information Systems
- •Memory Protection
- •Virtualization
- •Trusted Platform Module
- •Interfaces
- •Fault Tolerance
- •Encryption/Decryption
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Shared Responsibility
- •Hardware
- •Firmware
- •Client-Based Systems
- •Mobile Code
- •Local Caches
- •Server-Based Systems
- •Large-Scale Parallel Data Systems
- •Grid Computing
- •Peer to Peer
- •Industrial Control Systems
- •Distributed Systems
- •Internet of Things
- •Edge and Fog Computing
- •Static Systems
- •Network-Enabled Devices
- •Cyber-Physical Systems
- •Elements Related to Embedded and Static Systems
- •Security Concerns of Embedded and Static Systems
- •Specialized Devices
- •Microservices
- •Infrastructure as Code
- •Virtualized Systems
- •Virtual Software
- •Virtualized Networking
- •Software-Defined Everything
- •Virtualization Security Management
- •Containerization
- •Serverless Architecture
- •Mobile Devices
- •Mobile Device Security Features
- •Mobile Device Deployment Policies
- •Process Isolation
- •Hardware Segmentation
- •System Security Policy
- •Covert Channels
- •Attacks Based on Design or Coding Flaws
- •Rootkits
- •Incremental Attacks
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Apply Security Principles to Site and Facility Design
- •Secure Facility Plan
- •Site Selection
- •Facility Design
- •Equipment Failure
- •Wiring Closets
- •Server Rooms/Data Centers
- •Intrusion Detection Systems
- •Cameras
- •Access Abuses
- •Media Storage Facilities
- •Evidence Storage
- •Restricted and Work Area Security
- •Utility Considerations
- •Fire Prevention, Detection, and Suppression
- •Perimeter Security Controls
- •Internal Security Controls
- •Key Performance Indicators of Physical Security
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •OSI Model
- •History of the OSI Model
- •OSI Functionality
- •Encapsulation/Deencapsulation
- •OSI Layers
- •TCP/IP Model
- •Common Application Layer Protocols
- •SNMPv3
- •Transport Layer Protocols
- •Domain Name System
- •DNS Poisoning
- •Domain Hijacking
- •Internet Protocol (IP) Networking
- •IP Classes
- •ICMP
- •IGMP
- •ARP Concerns
- •Secure Communication Protocols
- •Implications of Multilayer Protocols
- •Converged Protocols
- •Voice over Internet Protocol (VoIP)
- •Software-Defined Networking
- •Microsegmentation
- •Wireless Networks
- •Securing the SSID
- •Wireless Channels
- •Conducting a Site Survey
- •Wireless Security
- •Wi-Fi Protected Setup (WPS)
- •Wireless MAC Filter
- •Wireless Antenna Management
- •Using Captive Portals
- •General Wi-Fi Security Procedure
- •Wireless Communications
- •Wireless Attacks
- •Other Communication Protocols
- •Cellular Networks
- •Content Distribution Networks (CDNs)
- •Secure Network Components
- •Secure Operation of Hardware
- •Common Network Equipment
- •Network Access Control
- •Firewalls
- •Endpoint Security
- •Transmission Media
- •Network Topologies
- •Ethernet
- •Sub-Technologies
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Protocol Security Mechanisms
- •Authentication Protocols
- •Port Security
- •Quality of Service (QoS)
- •Secure Voice Communications
- •Voice over Internet Protocol (VoIP)
- •Vishing and Phreaking
- •PBX Fraud and Abuse
- •Remote Access Security Management
- •Remote Connection Security
- •Plan a Remote Access Security Policy
- •Multimedia Collaboration
- •Remote Meeting
- •Instant Messaging and Chat
- •Load Balancing
- •Virtual IPs and Load Persistence
- •Active-Active vs. Active-Passive
- •Manage Email Security
- •Email Security Goals
- •Understand Email Security Issues
- •Email Security Solutions
- •Virtual Private Network
- •Tunneling
- •How VPNs Work
- •Always-On
- •Common VPN Protocols
- •Switching and Virtual LANs
- •Switch Eavesdropping
- •Private IP Addresses
- •Stateful NAT
- •Automatic Private IP Addressing
- •Third-Party Connectivity
- •Circuit Switching
- •Packet Switching
- •Virtual Circuits
- •Fiber-Optic Links
- •Security Control Characteristics
- •Transparency
- •Transmission Management Mechanisms
- •Prevent or Mitigate Network Attacks
- •Eavesdropping
- •Modification Attacks
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Controlling Access to Assets
- •Controlling Physical and Logical Access
- •The CIA Triad and Access Controls
- •Managing Identification and Authentication
- •Comparing Subjects and Objects
- •Registration, Proofing, and Establishment of Identity
- •Authorization and Accountability
- •Authentication Factors Overview
- •Something You Know
- •Something You Have
- •Something You Are
- •Multifactor Authentication (MFA)
- •Two-Factor Authentication with Authenticator Apps
- •Passwordless Authentication
- •Device Authentication
- •Service Authentication
- •Mutual Authentication
- •Implementing Identity Management
- •Single Sign-On
- •SSO and Federated Identities
- •Credential Management Systems
- •Credential Manager Apps
- •Scripted Access
- •Session Management
- •Provisioning and Onboarding
- •Deprovisioning and Offboarding
- •Defining New Roles
- •Account Maintenance
- •Account Access Review
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Comparing Access Control Models
- •Comparing Permissions, Rights, and Privileges
- •Understanding Authorization Mechanisms
- •Defining Requirements with a Security Policy
- •Introducing Access Control Models
- •Discretionary Access Control
- •Nondiscretionary Access Control
- •Implementing Authentication Systems
- •Implementing SSO on the Internet
- •Implementing SSO on Internal Networks
- •Understanding Access Control Attacks
- •Crackers, Hackers, and Attackers
- •Risk Elements
- •Common Access Control Attacks
- •Core Protection Methods
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Security Testing
- •Security Assessments
- •Security Audits
- •Performing Vulnerability Assessments
- •Describing Vulnerabilities
- •Vulnerability Scans
- •Penetration Testing
- •Compliance Checks
- •Code Review and Testing
- •Interface Testing
- •Misuse Case Testing
- •Test Coverage Analysis
- •Website Monitoring
- •Implementing Security Management Processes
- •Log Reviews
- •Account Management
- •Disaster Recovery and Business Continuity
- •Training and Awareness
- •Key Performance and Risk Indicators
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Need to Know and Least Privilege
- •Separation of Duties (SoD) and Responsibilities
- •Two-Person Control
- •Job Rotation
- •Mandatory Vacations
- •Privileged Account Management
- •Service Level Agreements (SLAs)
- •Addressing Personnel Safety and Security
- •Duress
- •Travel
- •Emergency Management
- •Security Training and Awareness
- •Provision Resources Securely
- •Information and Asset Ownership
- •Asset Management
- •Apply Resource Protection
- •Media Management
- •Media Protection Techniques
- •Managed Services in the Cloud
- •Shared Responsibility with Cloud Service Models
- •Scalability and Elasticity
- •Provisioning
- •Baselining
- •Using Images for Baselining
- •Automation
- •Managing Change
- •Change Management
- •Versioning
- •Configuration Documentation
- •Managing Patches and Reducing Vulnerabilities
- •Systems to Manage
- •Patch Management
- •Vulnerability Management
- •Vulnerability Scans
- •Common Vulnerabilities and Exposures
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Conducting Incident Management
- •Defining an Incident
- •Incident Management Steps
- •Basic Preventive Measures
- •Understanding Attacks
- •Intrusion Detection and Prevention Systems
- •Specific Preventive Measures
- •Logging and Monitoring
- •The Role of Monitoring
- •Log Management
- •Egress Monitoring
- •Automating Incident Response
- •Understanding SOAR
- •Threat Intelligence
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •The Nature of Disaster
- •Natural Disasters
- •Human-Made Disasters
- •Protecting Hard Drives
- •Protecting Servers
- •Protecting Power Sources
- •Trusted Recovery
- •Quality of Service
- •Recovery Strategy
- •Business Unit and Functional Priorities
- •Crisis Management
- •Emergency Communications
- •Workgroup Recovery
- •Alternate Processing Sites
- •Database Recovery
- •Recovery Plan Development
- •Emergency Response
- •Personnel and Communications
- •Assessment
- •Backups and Off-site Storage
- •Software Escrow Arrangements
- •Utilities
- •Logistics and Supplies
- •Recovery vs. Restoration
- •Testing and Maintenance
- •Structured Walk-Through
- •Simulation Test
- •Parallel Test
- •Lessons Learned
- •Maintenance
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Investigations
- •Investigation Types
- •Evidence
- •Investigation Process
- •Major Categories of Computer Crime
- •Military and Intelligence Attacks
- •Business Attacks
- •Financial Attacks
- •Terrorist Attacks
- •Grudge Attacks
- •Thrill Attacks
- •Hacktivists
- •Ethics
- •Organizational Code of Ethics
- •(ISC)2 Code of Ethics
- •Ethics and the Internet
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Software Development
- •Systems Development Lifecycle
- •Lifecycle Models
- •Gantt Charts and PERT
- •Change and Configuration Management
- •The DevOps Approach
- •Application Programming Interfaces
- •Software Testing
- •Code Repositories
- •Service-Level Agreements
- •Third-Party Software Acquisition
- •Establishing Databases and Data Warehousing
- •Database Management System Architecture
- •Database Transactions
- •Security for Multilevel Databases
- •Open Database Connectivity
- •NoSQL
- •Expert Systems
- •Machine Learning
- •Neural Networks
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Malware
- •Sources of Malicious Code
- •Viruses
- •Logic Bombs
- •Trojan Horses
- •Worms
- •Spyware and Adware
- •Ransomware
- •Malicious Scripts
- •Zero-Day Attacks
- •Malware Prevention
- •Platforms Vulnerable to Malware
- •Antimalware Software
- •Integrity Monitoring
- •Advanced Threat Protection
- •Application Attacks
- •Buffer Overflows
- •Time of Check to Time of Use
- •Backdoors
- •Privilege Escalation and Rootkits
- •Injection Vulnerabilities
- •SQL Injection Attacks
- •Code Injection Attacks
- •Command Injection Attacks
- •Exploiting Authorization Vulnerabilities
- •Insecure Direct Object References
- •Directory Traversal
- •File Inclusion
- •Request Forgery
- •Session Hijacking
- •Application Security Controls
- •Input Validation
- •Web Application Firewalls
- •Database Security
- •Code Security
- •Secure Coding Practices
- •Source Code Comments
- •Error Handling
- •Hard-Coded Credentials
- •Memory Management
- •Summary
- •Exam Essentials
- •Written Lab
- •Review Questions
- •Chapter 2: Personnel Security and Risk Management Concepts
- •Chapter 3: Business Continuity Planning
- •Chapter 4: Laws, Regulations, and Compliance
- •Chapter 5: Protecting Security of Assets
- •Chapter 10: Physical Security Requirements
- •Chapter 11: Secure Network Architecture and Components
- •Chapter 12: Secure Communications and Network Attacks
- •Chapter 17: Preventing and Responding to Incidents
- •Chapter 18: Disaster Recovery Planning
- •Chapter 19: Investigations and Ethics
- •Chapter 20: Software Development Security
- •Chapter 21: Malicious Code and Application Attacks
- •Chapter 3: Business Continuity Planning
- •Chapter 5: Protecting Security of Assets
- •Chapter 6: Cryptography and Symmetric Key Algorithms
- •Chapter 12: Secure Communications and Network Attacks
- •Chapter 15: Security Assessment and Testing
- •Chapter 17: Preventing and Responding to Incidents
- •Chapter 18: Disaster Recovery Planning
- •Chapter 19: Investigations and Ethics
- •Chapter 21: Malicious Code and Application Attacks
- •Index
Personnel Security Policies and Procedures |
53 |
Outsourcing is the term often used to describe the use of an external third party, such as a vendor, consultant, or contractor, rather than performing the task or operation in-house. Outsourcing can be used as a risk response option known as transference or assignment (see the “Risk Response” section, later in this chapter). However, though the risk of operating
a function internally is transferred to a third party, other risks are taken on by using a third party. This aspect needs to be evaluated as to whether it is a benefit or a consequence of the SLA.
For more on service-level agreements (SLAs), see Chapter 16.
Vendors, consultants, and contractors also represent an increase in risk of trade secret theft or espionage. Outsiders often lack the organizational loyalty that internal employees typically have; thus, the temptation to take advantage of intellectual property access opportunities may seem to a perpetrator easier or less of an internal conflict. For more on espionage, see Chapter 17, “Preventing and Responding to Incidents.”
Some organizations may benefit from a vendor management system (VMS). A VMS is a software solution that assists with the management and procurement of staffing services, hardware, software, and other needed products and services. A VMS can offer ordering convenience, order distribution, order training, consolidated billing, and more. In regard to security, a VMS can potentially keep communications and contracts confidential, require encrypted and authenticated transactions, and maintain a detailed activity log of events related to vendors and suppliers.
Compliance Policy Requirements
Compliance is the act of conforming to or adhering to rules, policies, regulations, standards, or requirements. Compliance is an important concern of security governance. On a personnel level, compliance is related to whether individual employees follow company policy and perform their job tasks in accordance with defined procedures. Many organizations rely on employee compliance in order to maintain high levels of quality, consistency, efficiency, and cost savings. If employees do not maintain compliance, it could cost the organization in terms of profit, market share, recognition, and reputation. Employees need to be trained in regard to what they need to do (i.e., stay in line with company standards as defined in the security policy and remain in compliance with any contractual obligations such as Payment Card Industry Data Security Standard [PCI DSS] to maintain the ability to perform credit card processing); only then can they be held accountable for violations or lacking compliance. Compliance is a form of administrative or managerial security control because
it focuses on policies and people abiding by those policies (as well as whether the IT and physical elements of the organization comply with policies).
Compliance enforcement is the application of sanctions or consequences for failing to follow policy, training, best practices, and/or regulations. Such enforcement efforts could be performed by the chief information security officer (CISO) or chief security officer (CSO), worker managers and supervisors, auditors, and third-party regulators.
Compliance is also a regulation concern. That topic is covered in Chapter 4.
54 Chapter 2 ■ Personnel Security and Risk Management Concepts
Privacy Policy Requirements
Privacy can be a difficult concept to define. The term is used frequently in numerous contexts without much quantification or qualification. Here are some partial definitions of privacy:
■■Active prevention of unauthorized access to information that is personally identifiable (that is, data points that can be linked directly to a person or organization), known as personally identifiable information (PII)
■■Freedom from unauthorized access to information deemed personal or confidential
■■Freedom from being observed, monitored, or examined without consent or knowledge
When addressing privacy in the realm of IT, there is usually a balancing act between individual rights and the rights or activities of an organization. Some claim that individuals have the right to control whether information can be collected about them and what can be done with it. Others claim that any activity performed in public view—such as most activities performed over the internet or activities performed on company equipment—can be monitored without knowledge of or permission from the individuals being watched, and that the information gathered from such monitoring can be used for whatever purposes an organization deems appropriate or desirable. Some of these issues are determined by law based on country or context, whereas others are left up to organizations and individuals.
Protecting individuals from unwanted observation, direct marketing, and disclosure of private, personal, or confidential details is usually considered a worthy effort. However, some organizations profess that demographic studies, information gleaning, and
focused marketing improve business models, reduce advertising waste, and save money for all parties.
There are many legislative and regulatory compliance issues in regard to privacy. Many U.S. regulations—such as the Health Insurance Portability and Accountability Act (HIPAA), the Sarbanes–Oxley Act of 2002 (SOX), the Family Educational Rights and Privacy Act (FERPA), and the Gramm–Leach–Bliley Act—as well as the European Union’s General Data Protection Regulation (GDPR) (Regulation [EU] 2016/679)—include privacy requirements. It is important to understand all government regulations that your organization is required to adhere to and ensure compliance, especially in the areas of privacy protection.
Whatever your personal or organizational stance is on the issue of online privacy, it should be addressed in an organizational security policy. Privacy is an issue not just for external visitors to your online offerings but also for your customers, employees, suppliers, and contractors. If you gather any type of information about any person or company, you must address privacy.
In most cases, especially when privacy is being violated or restricted, the individuals and companies may need to be informed; otherwise, you may face legal ramifications. Privacy issues must also be addressed when allowing or restricting personal use of email, retaining email, recording phone conversations, gathering information about surfing or spending
habits, and so on. All this and more should be codified in a privacy policy (i.e., internal rules) and potentially a privacy statement/disclosure/notice (i.e., explanation to external entities).
Privacy and PII are covered more in Chapter 4.