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ExamsSY0-301Questions#247
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SY0-301 · Question #247

SY0-301 Question #247: Real Exam Question with Answer & Explanation

The correct answer is B: Cross-site request forgery. This is a classic Cross-Site Request Forgery (CSRF) attack. The victim is authenticated to their router's admin interface in one browser tab, meaning the browser holds a valid session cookie for 192.168.1.1. When the victim clicks a malicious link on the forum, the link contains

Question

A victim is logged onto a popular home router forum site in order to troubleshoot some router configuration issues. The router is a fairly standard configuration and has an IP address of 192.168.1.1. The victim is logged into their router administrative interface in one tab and clicks a forum link in another tab. Due to clicking the forum link, the home router reboots. Which of the following attacks MOST likely occurred?

Options

  • ABrute force password attack
  • BCross-site request forgery
  • CCross-site scripting
  • DFuzzing

Explanation

This is a classic Cross-Site Request Forgery (CSRF) attack. The victim is authenticated to their router's admin interface in one browser tab, meaning the browser holds a valid session cookie for 192.168.1.1. When the victim clicks a malicious link on the forum, the link contains a crafted HTTP request (e.g., targeting http://192.168.1.1/reboot) that the victim's browser executes automatically, including the valid session cookie. The router sees the request as legitimate because it comes with a valid authenticated session. CSRF exploits the trust a website places in the user's browser. Brute Force (A) would require many repeated login attempts, not a single click. Cross-Site Scripting (C) injects malicious scripts into a trusted site's content to execute in the victim's browser, which is a different mechanism. Fuzzing (D) is a testing technique that sends random/invalid data to find bugs - it is not an end-user attack.

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