Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
Exhibit
Reverse proxy config excerpt: proxy_set_header X-Original-URL $request_uri; proxy_set_header X-Forwarded-User $remote_user; Access log: GET /app/report HTTP/1.1 200 X-Original-URL: /admin/export X-Forwarded-User: jlee Backend log: 09:41:11 GET /admin/export user=jlee role=analyst response=200 09:41:13 POST /admin/export user=jlee role=analyst response=200
Based on the exhibit, which vulnerability is being exploited?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Cross-site scripting (XSS)
XSS requires script injection into content rendered by another user’s browser, which is not shown here.
B
Distractor review
Cross-site request forgery (CSRF)
CSRF abuses a victim’s browser to send unintended authenticated requests, usually without changing trusted proxy headers.
C
Best answer
Authentication bypass
The backend is trusting client-influenced headers and a forwarded path value to reach an administrative endpoint. The logs show a normal analyst account reaching /admin/export after supplying X-Original-URL, which indicates the application or proxy is failing to enforce access controls consistently. That is an authentication or authorization bypass caused by trusting data the client can manipulate.
D
Distractor review
Command injection
Command injection would involve hostile shell metacharacters or system command execution, which the logs do not show.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Authentication bypass — This is an authentication bypass caused by trusting a header and path value that should not come from the client. The reverse proxy or backend uses X-Original-URL to route a request to an administrative endpoint, and the analyst account receives a 200 response. The key clue is that a user with limited role information can still execute admin actions because the application’s access control is being skipped or misapplied. Why others are wrong: XSS would require malicious script execution in a browser, not proxy routing behavior. CSRF would involve a browser being tricked into sending a legitimate request, but not header-based path override. Command injection would show shell commands or command separators reaching an interpreter, which is not present in the exhibit.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
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