User authentication and authorization in SCADA systems - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is user authentication in SCADA systems?

User authentication is the process of verifying the identity of a user before granting access to the SCADA system. It ensures that only authorized users can log in.

beginner

Define user authorization in the context of SCADA systems.

User authorization determines what actions or resources a verified user is allowed to access within the SCADA system after authentication.

intermediate

Name two common methods of user authentication used in SCADA systems.

Two common methods are: 1) Password-based authentication, where users enter a secret password. 2) Two-factor authentication, which adds a second verification step like a code sent to a device.

intermediate

Why is role-based access control (RBAC) important in SCADA authorization?

RBAC assigns permissions based on user roles, simplifying management and ensuring users only access what they need, reducing security risks.

advanced

What could happen if authentication and authorization are weak in a SCADA system?

Weak authentication and authorization can lead to unauthorized access, manipulation of control systems, data breaches, and potentially dangerous operational failures.

What does user authentication verify in a SCADA system?

A The user's permissions

B The identity of the user

C The system's uptime

D The network speed

Authentication checks who the user is before allowing access.

Which method adds an extra step beyond password entry for user verification?

A Single sign-on

B Encryption

C Role-based access control

D Two-factor authentication

Two-factor authentication requires a second verification step, like a code.

What does authorization control in a SCADA system?

A User permissions and access levels

B User identity

C System hardware

D Network configuration

Authorization defines what a user can do after they are authenticated.

Role-based access control (RBAC) is used to:

A Assign permissions based on user roles

B Encrypt user passwords

C Monitor network traffic

D Backup system data

RBAC simplifies permission management by grouping users into roles.

What is a risk of poor authentication in SCADA systems?

A Faster system performance

B Improved user experience

C Unauthorized system access

D Reduced power consumption

Poor authentication can allow attackers to access the system illegally.

Explain the difference between user authentication and authorization in SCADA systems.

Think about 'who you are' vs 'what you can do'.

Describe why strong authentication and authorization are critical for SCADA system security.

Consider the impact of a security breach on real-world infrastructure.