Common SCADA vulnerabilities in SCADA systems - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a common vulnerability related to weak authentication in SCADA systems?

Weak authentication means SCADA systems use simple or default passwords, making it easy for attackers to gain unauthorized access.

beginner

Why is unencrypted communication a risk in SCADA systems?

Unencrypted communication allows attackers to intercept and read sensitive data or commands sent between devices, leading to data theft or manipulation.

beginner

How can outdated software create vulnerabilities in SCADA systems?

Outdated software may have known security flaws that attackers can exploit because patches or updates have not been applied.

intermediate

What is the risk of having poor network segmentation in SCADA environments?

Poor network segmentation allows attackers to move easily from one part of the network to another, increasing the impact of a breach.

intermediate

Explain the vulnerability caused by lack of monitoring in SCADA systems.

Without proper monitoring, suspicious activities or attacks can go unnoticed, delaying response and increasing damage.

Which of the following is a common vulnerability in SCADA systems?

A Use of default passwords

B Strong encryption of all data

C Regular software updates

D Strict network segmentation

Default passwords are a common weakness that attackers exploit to gain access.

Why is unencrypted communication dangerous in SCADA systems?

A It reduces system complexity

B It speeds up data transfer

C It allows attackers to intercept data

D It improves device compatibility

Unencrypted data can be intercepted and read by attackers, risking data theft or manipulation.

What happens if SCADA software is not updated regularly?

A System becomes faster

B Network traffic decreases

C System uses less memory

D Known security flaws remain exploitable

Without updates, attackers can exploit known vulnerabilities in outdated software.

Poor network segmentation in SCADA systems can lead to:

A Better system performance

B Easier attacker movement within the network

C Reduced attack surface

D Improved data encryption

Lack of segmentation allows attackers to move freely, increasing breach impact.

What is the risk of not monitoring SCADA systems properly?

A Suspicious activities may go unnoticed

B Faster detection of attacks

C Reduced system downtime

D Improved user experience

Without monitoring, attacks can remain hidden, delaying response and increasing damage.

Describe three common vulnerabilities found in SCADA systems and explain why they are risky.

Think about how attackers can gain access or intercept data.

Explain how poor network segmentation and lack of monitoring can increase the impact of a SCADA system attack.

Consider how attackers exploit network design and visibility.