The Official (ISC)2 Guide to the SSCP CBK

Foreword xvii
Introduction xix
DOMAIN 1: ACCESS CONTROLS 1
Objectives 3
Access Control Concepts 3
Applying Logical Access Control in Terms of Subjects 4
Applying Logical Access Control in Terms of Objects or Object Groups 9
Implementing Access Controls 11
Discretionary Access Control 11
Role-Based Access Controls 14
Nondiscretionary Access Control 21
Mandatory Access Control 21
Attribute-Based Access Control 22
Security Architecture and Models 23
Bell-LaPadula Confidentiality Model 23
Biba and Clark-Wilson Integrity Models 24
Additional Models 26
Implementing Authentication Mechanisms--Identification, Authentication, Authorization, and Accountability 27
Identification (Who Is the Subject?) 27
Authentication (Proof of Identity) 29
Authorization 51
Authentication Using Kerberos 55
User/Device Authentication Policies 58
Comparing Internetwork Trust Architectures 59
Internet 59
Intranet 60
Extranet 60
Demilitarized Zone (DMZ) 60
Trust Direction 61
One-Way Trust 62
Two-Way Trust 62
Trust Transitivity 62
Administering the Identity Management Lifecycle 62
Authorization 62
Proofing 63
Provisioning 63
Maintenance 63
Entitlement 63
Summary 63
Sample Questions 64
Notes 67
DOMAIN 2: SECURITY OPERATIONS 71
Objectives 73
Code of Ethics 74
Code of Ethics Preamble 74
Code of Ethics Canons 75
Applying a Code of Ethics to Security Practitioners 76
Security Program Objectives: The C-I-A Triad and Beyond 77
Confidentiality 77
Integrity 78
Availability 79
Non-Repudiation 80
Privacy 80
Security Best Practices 82
Designing a Security Architecture 82
Secure Development and Acquisition Lifecycles 95
System Vulnerabilities, Secure Development, and Acquisition Practices 101
Hardware/Software 104
Data 106
Disclosure Controls: Data Leakage Prevention 118
Technical Controls 119
Operational Controls 121
Managerial Controls 121
Implementation and Release Management 130
Systems Assurance and Controls Validation 132
Change Control and Management 132
Configuration Management 135
Security Impact Assessment 139
System Architecture/Interoperability of Systems 139
Patch Management 140
Monitoring System Integrity 142
Security Awareness and Training 142
Interior Intrusion Detection Systems 146
Building and Inside Security 152
Securing Communications and Server Rooms 166
Restricted and Work Area Security 169
Data Center Security 170
Summary 177
Sample Questions 178
Notes 181
DOMAIN 3: RISK IDENTIFICATION, MONITORING, AND ANALYSIS 185
Objectives 187
Introduction to Risk Management 187
Risk Management Concepts 187
Security Auditing Overview 203
Responding to an Audit 208
Exit Interview 208
Presentation of Audit Findings 208
Management Response 208
Security Assessment Activities 209
Vulnerability Scanning and Analysis 209
Penetration Testing 224
Operating and Maintaining Monitoring Systems 239
Security Monitoring Concepts 239
Attackers 245
Intrusions 246
Events 247
Types of Monitoring 247
Log Files 249
Source Systems 257
Security Analytics, Metrics, and Trends 258
Visualization 260
Event Data Analysis 261
Communication of Findings 266
Going Hands-on--Risk Identification Exercise 266
Virtual Testing Environment 267
Creating the Environment 268
Summary 279
Sample Questions 280
Notes 283
DOMAIN 4: INCIDENT RESPONSE AND RECOVERY 285
Objectives 287
Incident Handling 287
Preparation 289
Detection and Analysis 296
Containment, Eradication, and Recovery 306
Post-Incident Activity 308
Recovery and Business Continuity 319
Business Continuity Planning 319
Disaster Recovery Planning 326
Plan Testing 330
Plan Review and Maintenance 333
Summary 340
Sample Questions 341
Notes 344
DOMAIN 5: CRYPTOGRAPHY 345
Objectives 346
Encryption Concepts 347
Key Concepts and Definitions 347
Foundational Concepts 350
Evaluation of Algorithms 355
Hashing 356
Encryption and Decryption 361
Symmetric Cryptography 361
Asymmetric Cryptography 376
Hybrid Cryptography 381
Message Digests 382
Message Authentication Code 382
HMAC 383
Digital Signatures 383
Non-Repudiation 384
Methods of Cryptanalytic Attack 385
Data Sensitivity and Regulatory Requirements 390
Legislative and Regulatory Compliance 390
End-User Training 394
Public Key Infrastructure (PKI) 395
Fundamental Key Management Concepts 397
Management and Distribution of Keys 404
Secure Protocols 413
Going Hands-on with Cryptography--Cryptography Exercise 417
Requirements 417
Setup 418
Key Exchange and Sending Secure E-mail 431
Conclusion 439
Summary 439
Sample Questions 440
End Notes 443
DOMAIN 6: NETWORKS AND COMMUNICATIONS SECURITY 447
Objectives 449
Security Issues Related to Networks 449
OSI and TCP/IP Models 450
IP Networking 460
Network Topographies and Relationships 467
Commonly Used Ports and Protocols 477
Telecommunications Technologies 496
Converged Communications 496
VoIP 499
POTS and PBX 500
Cellular 501
Attacks and Countermeasures 501
Control Network Access 503
Hardware 507
Wired Transmission Media 509
Endpoint Security 513
Voice Technologies 513
Multimedia Collaboration 515
Open Protocols, Applications, and Services 516
Remote Access 517
Data Communication 522
LAN-Based Security 522
Separation of Data Plane and Control Plane 522
Segmentation 523
Media Access Control Security (IEEE 802.1AE) 526
Secure Device Management 527
Network-Based Security Devices 530
Network Security Objectives and Attack Modes 531
Firewalls and Proxies 534
Network Intrusion Detection/Prevention Systems 537
IP Fragmentation Attacks and Crafted Packets 544
DoS/DDoS 547
Spoofing 551
Wireless Technologies 555
Wireless Technologies, Networks, and Methodologies 555
Transmission Security and Common Vulnerabilities and Countermeasures 558
Summary 563
Sample Questions 564
End Notes 568
DOMAIN 7: SYSTEMS AND APPLICATION SECURITY 577
Objectives 580
Identifying and Analyzing Malicious Code and Activity 580
CIA Triad: Applicability to Malcode 581
Malcode Naming Conventions and Types 582
Malicious Code Countermeasures 598
Vectors of Infection 611
Malicious Activity 614
How to Do It for Yourself: Using the Social Engineer Toolkit (SET) 615
Long File Extensions 619
Double File Extensions 619
Fake Related Extension 622
Fake Icons 623
Password-Protected ZIP Files/RAR 624
Hostile Codecs 624
E-mail 624
Insider Human Threats 626
Insider Hardware and Software Threats 628
Spoofing, Phishing, Spam, and Botnets 630
Spoofing 630
Phishing 631
Spam 633
Botnets 635
Malicious Web Activity 638
Cross-Site Scripting (XSS) Attacks 639
Zero-Day Exploits and Advanced Persistent Threats (APTs) 639
Brute-Force Attacks 641
Instant Messaging 643
Peer-to-Peer Networks 643
Internet Relay Chat 644
Rogue Products and Search Engines 645
Infected Factory Builds and Media 645
Web Exploitation Frameworks 645
Payloads 646
Backdoor Trojans 646
Man-in-the-Middle Malcode 647
Identifying Infections 649
Malicious Activity Countermeasures 652
Third-Party Certifi cations 655
The Wildlist 656
Questionable Behavior on a Computer 656
Inspection of Processes 658
Inspection of the Windows Registry 659
How to Do It for Yourself: Installing Strawberry Perl in Windows 7 or Windows 8 659
Inspection of Common File Locations 661
Behavioral Analysis of Malcode 666
Static File Analysis 669
Testing Remote Websites Found in Network Log Files 677
Testing of Samples in Virtualized Environments 683
Free Online Sandbox Solutions 686
Interactive Behavioral Testing 687
Malcode Mitigation 687
Strategic 687
Tactical 689
Implementing and Operating End-Point Device Security 691
Host-Based Intrusion Detection System 691
Host-Based Firewalls 692
Application Whitelisting 692
Endpoint Encryption 693
Trusted Platform Module 693
Mobile Device Management 694
Secure Browsing 695
Operating and Confi guring Cloud Security 696
The Five Essential Characteristics of Clouds 696
Deployment Models 697
Service Models 699
Virtualization 702
Legal and Privacy Concerns 704
Classifi cation of Discovered Sensitive Data 709
Mapping and Defi nition of Controls 710
Application of Defined Controls for Personally Identifiable Information (PII) 711
Data Storage and Transmission 712
Threats to Storage Types 716
Technologies Available to Address Threats 716
DLP 716
Encryption 719
Sample Use Cases for Encryption 720
Cloud Encryption Challenges 720
Encryption Architecture 722
Data Encryption in IaaS 722
Key Management 724
Encryption Alternatives and Other Data Protection Technologies 726
Data Masking/Data Obfuscation 726
Data Anonymization 727
Tokenization 728
Third-Party/Outsourcing Implications 729
Data Retention Policies 729
Data Deletion Procedures and Mechanisms 730
Data Archiving Procedures and Mechanisms 731
Event Sources 732
Data Event Logging and Event Attributes 735
Storage and Analysis of Data Events 736
Securing Big Data Systems 738
Operating and Securing Virtual Environments 740
Software-Defined Network (SDN) 741
Virtual Appliances 741
Continuity and Resilience 742
Attacks and Countermeasures 743
Security Virtualization Best Practices 744
Summary 750
Sample Questions 750
End Notes 757
APPENDIX A: ANSWERS TO SAMPLE QUESTIONS 769
Domain 1: Access Controls 770
Domain 2: Security Operations 777
Domain 3: Risk, Identification, Monitoring, and Analysis 785
Domain 4: Incident Response and Recovery 793
Domain 5: Cryptography 798
Domain 6: Networks and Communications Security 805
Domain 7: Systems and Application Security 814
APPENDIX B: DNSSEC WALKTHROUGH 831
Hardware and Software Requirements 832
Configuring the Test Lab 832
Configuring DC1 832
Creating a Domain Administrator Account 834
Configuring the sec.isc2.com DNS Zone 834
Enabling Remote Desktop on DC1 835
Configuring DNS1 835
Installing the OS and Configuring TCP/IP on DC1 836
Installing and Configuring DNS on DNS1 836
Signing a Zone on DC1 and Distributing
Trust Anchors 837
Distributing a Trust Anchor to DNS1 838
Verifying Trust Anchors 838
Querying a Signed Zone with DNSSEC Validation Required 838
Unsigning the Zone 839
Resigning the Zone with Custom Parameters 840
APPENDIX C: GLOSSARY OF TERMS RELATED TO THE SSCP 841
Index 873