IEC 62443-4-2:2019

Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components

IEC 62443-4-2:2019

Name:IEC 62443-4-2:2019   Standard name:Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components
Standard number:IEC 62443-4-2:2019   language:English and French language
Release Date:26-Feb-2019   technical committee:TC 65 - Industrial-process measurement, control and automation
Drafting committee:WG 10 - TC 65/WG 10   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

IEC 62443-4-2
Edition 1.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Security for industrial automation and control systems –
Part 4-2: Technical security requirements for IACS components

Sécurité des systèmes d’automatisation et de commande industrielles –
Partie 4-2: Exigences de sécurité technique des composants IACS





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IEC 62443-4-2
Edition 1.0 2019-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Security for industrial automation and control systems –

Part 4-2: Technical security requirements for IACS components

Sécurité des systèmes d’automatisation et de commande industrielles –

Partie 4-2: Exigences de sécurité technique des composants IACS

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 35.030 ISBN 978-2-8322-6597-0

– 2 – IEC 62443-4-2:2019  IEC 2019
CONTENTS
FOREWORD . 12
INTRODUCTION . 14
1 Scope . 17
2 Normative references . 17
3 Terms, definitions, abbreviated terms, acronyms, and conventions . 18
3.1 Terms and definitions . 18
3.2 Abbreviated terms and acronyms . 24
3.3 Conventions . 26
4 Common component security constraints . 27
4.1 Overview. 27
4.2 CCSC 1: Support of essential functions . 27
4.3 CCSC 2: Compensating countermeasures . 27
4.4 CCSC 3: Least privilege . 27
4.5 CCSC 4: Software development process . 27
5 FR 1 – Identification and authentication control . 27
5.1 Purpose and SL-C(IAC) descriptions . 27
5.2 Rationale . 28
5.3 CR 1.1 – Human user identification and authentication . 28
5.3.1 Requirement . 28
5.3.2 Rationale and supplemental guidance. 28
5.3.3 Requirement enhancements . 28
5.3.4 Security levels . 29
5.4 CR 1.2 – Software process and device identification and authentication . 29
5.4.1 Requirement . 29
5.4.2 Rationale and supplemental guidance. 29
5.4.3 Requirement enhancements . 29
5.4.4 Security levels . 30
5.5 CR 1.3 – Account management . 30
5.5.1 Requirement . 30
5.5.2 Rationale and supplemental guidance. 30
5.5.3 Requirement enhancements . 30
5.5.4 Security levels . 30
5.6 CR 1.4 – Identifier management . 30
5.6.1 Requirement . 30
5.6.2 Rationale and supplemental guidance. 30
5.6.3 Requirement enhancements . 31
5.6.4 Security levels . 31
5.7 CR 1.5 – Authenticator management . 31
5.7.1 Requirement . 31
5.7.2 Rationale and supplemental guidance. 31
5.7.3 Requirement enhancements . 32
5.7.4 Security levels . 32
5.8 CR 1.6 – Wireless access management . 32

5.9 CR 1.7 – Strength of password-based authentication . 32
5.9.1 Requirement . 32
5.9.2 Rationale and supplemental guidance. 32
5.9.3 Requirement enhancements . 32
5.9.4 Security levels . 33
5.10 CR 1.8 – Public key infrastructure certificates . 33
5.10.1 Requirement . 33
5.10.2 Rationale and supplemental guidance. 33
5.10.3 Requirement enhancements . 33
5.10.4 Security levels . 33
5.11 CR 1.9 – Strength of public key-based authentication . 34
5.11.1 Requirement . 34
5.11.2 Rationale and supplemental guidance. 34
5.11.3 Requirement enhancements . 35
5.11.4 Security levels . 35
5.12 CR 1.10 – Authenticator feedback . 35
5.12.1 Requirement . 35
5.12.2 Rationale and supplemental guidance. 35
5.12.3 Requirement enhancements . 35
5.12.4 Security levels . 35
5.13 CR 1.11 – Unsuccessful login attempts . 35
5.13.1 Requirement . 35
5.13.2 Rationale and supplemental guidance. 36
5.13.3 Requirement enhancements . 36
5.13.4 Security levels . 36
5.14 CR 1.12 – System use notification . 36
5.14.1 Requirement . 36
5.14.2 Rationale and supplemental guidance. 36
5.14.3 Requirement enhancements . 36
5.14.4 Security levels . 37
5.15 CR 1.13 – Access via untrusted networks .
...

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