The correct answer is directory traversal, as the GET request in the exhibit contains the classic ../ pattern to navigate up directories and access the sensitive /etc/passwd file, which is the hallmark of a directory traversal attack. This vulnerability exploits insufficient input validation, allowing an attacker to manipulate file paths and read arbitrary files on the server. On the CompTIA SecurityX CAS-004 exam, this question tests your ability to distinguish directory traversal from other web attacks by analyzing raw HTTP request syntax—a common trap is confusing path traversal with SQL injection or XSS, but remember that SQL injection includes SQL keywords like SELECT or UNION, while XSS contains script tags or event handlers. A useful memory tip is to think of the dot-dot-slash (../) as the "ladder" that climbs out of the web root, so whenever you see repeated ../ sequences in a URI, immediately flag it as directory traversal.
CAS-004 Security Operations Practice Question
This CAS-004 practice question tests your understanding of security operations. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
192.168.1.10 - - [27/Feb/2025:10:30:15 +0000] "GET /../../../etc/passwd HTTP/1.1" 200 2345
Based on the exhibit, which vulnerability is being exploited?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Directory traversal
Option D is correct because the GET request uses ../ to traverse directories and access /etc/passwd, typical of directory traversal attack. Option A is wrong because SQL injection would show SQL syntax. Option B is wrong because XSS would contain scripts. Option C is wrong because CSRF requires cross-site requests.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Cross-site request forgery (CSRF)
Why it's wrong here
CSRF tricks user into actions, not direct file access.
✗
SQL injection
Why it's wrong here
The request does not contain SQL syntax.
✓
Directory traversal
Why this is correct
The path contains ../ to escape web root and read system files.
Related concept
Read the scenario before looking for a memorised answer.
✗
Cross-site scripting (XSS)
Why it's wrong here
XSS involves injecting scripts, not file paths.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CAS-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Directory traversal — Option D is correct because the GET request uses ../ to traverse directories and access /etc/passwd, typical of directory traversal attack. Option A is wrong because SQL injection would show SQL syntax. Option B is wrong because XSS would contain scripts. Option C is wrong because CSRF requires cross-site requests.
What should I do if I get this CAS-004 question wrong?
Identify which CAS-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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