Google Professional Cloud Security Engineer Exam - Topic 1 Question 101 Discussion

Actual exam question for Google's Professional Cloud Security Engineer exam

Question #: 101
Topic #: 1

[All Professional Cloud Security Engineer Questions]

You are on your company's development team. You noticed that your web application hosted in staging on GKE dynamically includes user data in web pages without first properly validating the inputted dat

a. This could allow an attacker to execute gibberish commands and display arbitrary content in a victim user's browser in a production environment.

How should you prevent and fix this vulnerability?

AUse Cloud IAP based on IP address or end-user device attributes to prevent and fix the vulnerability.

BSet up an HTTPS load balancer, and then use Cloud Armor for the production environment to prevent the potential XSS attack.

CUse Web Security Scanner to validate the usage of an outdated library in the code, and then use a secured version of the included library.

DUse Web Security Scanner in staging to simulate an XSS injection attack, and then use a templating system that supports contextual auto-escaping.

Show Suggested Answer

Suggested Answer: D

There is mention about simulating in Web Security Scanner. 'Web Security Scanner cross-site scripting (XSS) injection testing *simulates* an injection attack by inserting a benign test string into user-editable fields and then performing various user actions.' https://cloud.google.com/security-command-center/docs/how-to-remediate-web-security-scanner-findings#xss

by Avery at Apr 05, 2025, 10:45 PM

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Billye

3 months ago

Cloud Armor is great, but we still need to validate inputs too.

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Gladys

3 months ago

I think using a templating system is a solid approach!

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Ailene

3 months ago

Not sure if just using Cloud IAP is enough to fix this.

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Svetlana

3 months ago

Surprised this wasn't caught earlier in staging!

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Pansy

4 months ago

Definitely need to validate user input to avoid XSS attacks.

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Staci

4 months ago

I feel like we had a similar question on the practice exam, and I chose something related to scanning for vulnerabilities. Was it option C?

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Loren

4 months ago

I'm a bit confused about whether using Cloud Armor really helps with the XSS issue. I thought it was more about DDoS protection?

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Lezlie

4 months ago

I think option D sounds familiar; we practiced using templating systems that auto-escape input to prevent XSS attacks.

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Maile

4 months ago

I remember we discussed the importance of input validation in our last class, but I'm not sure which option directly addresses that.

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Benton

5 months ago

This is a tricky one. I'm not sure if the IP-based access control or the HTTPS setup is the right solution here. I think I'll need to dig deeper into the code and understand how the user data is being included before I can decide on the best fix.

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Cristal

5 months ago

Okay, I think I've got a plan. I'll use the Web Security Scanner to test for potential XSS attacks in the staging environment, and then implement a templating system that supports contextual auto-escaping to properly sanitize the user input.

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Melodie

5 months ago

Hmm, I'm a bit unsure about the best approach here. Should I focus on the network security aspects like the HTTPS load balancer and Cloud Armor, or go straight to the code-level fixes like the templating system?

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Sunshine

5 months ago

This looks like a classic XSS vulnerability. I'd start by using a web security scanner to identify the specific areas where user input is being included without proper validation.

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An

10 months ago

Hmm, I wonder if the attacker will try to execute a 'git push origin master' command. Better go with option D to be safe!

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Oretha

9 months ago

Let's also make sure to use a templating system that supports contextual auto-escaping to further secure the web application.

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Jules

9 months ago

Agreed, using Web Security Scanner to simulate an XSS injection attack in staging is a good idea.

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Pearlie

9 months ago

I think we should go with option D to prevent any potential XSS attack.

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Micheal

10 months ago

This is a classic case of 'garbage in, garbage out.' Option D is the way to go! Gotta love those templating systems with auto-escaping.

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Jennie

9 months ago

We should also consider using the Web Security Scanner to simulate potential attacks and catch any vulnerabilities early on.

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Jose

9 months ago

Using a templating system with auto-escaping is crucial in preventing XSS attacks. Let's implement that as soon as possible.

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Shaunna

10 months ago

I agree, option D is definitely the best choice. We need to make sure our web application is secure.

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Valentin

10 months ago

I'm leaning towards option B. Setting up an HTTPS load balancer and using Cloud Armor seems like a robust solution to prevent the potential XSS attack.

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Ronna

10 months ago

It's important to prioritize security measures like this to keep our web application safe from vulnerabilities.

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Tegan

10 months ago

I agree, setting up an HTTPS load balancer and using Cloud Armor can definitely help protect against potential attacks.

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Starr

10 months ago

That sounds like a good idea. Option B seems like a strong choice to prevent XSS attacks.

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Alyssa

11 months ago

I believe setting up an HTTPS load balancer and using Cloud Armor is also a good option to prevent XSS attacks.

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Tonja

11 months ago

Definitely go with option D! Simulating the attack in the staging environment is the best way to identify and fix the vulnerability before it reaches production.

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