The answer is to send a request with a URL parameter pointing to an internal IP address. This SSRF detection technique works by tricking the server into making a request to a resource it should not normally access, such as 127.0.0.1, and then observing whether the response contains data from that internal host, which confirms the server is blindly fetching user-supplied URLs. On the Certified Ethical Hacker CEH exam, this tests your understanding of how SSRF exploits trust relationships between the server and internal networks, often appearing in scenario-based questions where you must choose the most direct proof of vulnerability. A common trap is to select a payload that triggers an outbound connection to an external site, which tests for blind SSRF but does not immediately confirm internal resource access. Remember the mnemonic "Fetch the Loopback" to recall that targeting 127.0.0.1 is the classic litmus test for SSRF.
CEH Web Application and Injection Attacks Practice Question
This CEH practice question tests your understanding of web application and injection attacks. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A security analyst wants to check if a web application is vulnerable to Server-Side Request Forgery (SSRF). Which of the following actions would be most effective?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Send a request with a URL parameter pointing to an internal IP address
Crafting a request that makes the server fetch an internal IP address (like 127.0.0.1) and observing if the response includes data from that internal resource is a good test for SSRF.
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.
✗
Submit a base64-encoded payload in a cookie
Why it's wrong here
This is more relevant to deserialization or injection attacks, not SSRF.
✗
Use SQLMap with a time-based payload
Why it's wrong here
SQLMap is for SQL injection, not SSRF.
✗
Modify the Host header to point to localhost
Why it's wrong here
Modifying the Host header is used for host header injection, not SSRF.
✓
Send a request with a URL parameter pointing to an internal IP address
Why this is correct
SSRF occurs when the server fetches a URL provided by the attacker; pointing to an internal IP tests for SSRF.
Related concept
Read the scenario before looking for a memorised answer.
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 CEH 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CEH question in full detail.
Identify which CEH 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.
Web Application and Injection Attacks — This question tests Web Application and Injection Attacks — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Send a request with a URL parameter pointing to an internal IP address — Crafting a request that makes the server fetch an internal IP address (like 127.0.0.1) and observing if the response includes data from that internal resource is a good test for SSRF.
What should I do if I get this CEH question wrong?
Identify which CEH 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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