Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
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JSON Master - Data Extraction
Mission
/app/users.json contains information of 100 users in JSON format. Extract users that meet these conditions: - age between 25 and 30 (inclusive) - country is "Japan" - is_active is true Extract all email addresses of matching users, sort them alphabetically, and wrap the first email in KINOCO{...} to make the flag. Hint: Use jq command
Hints
Hint 1 Show
jq is a powerful JSON processor
Hint 2 Show
Use select() for filtering: jq '.[] | select(.age >= 25)'
Hint 3 Show
Combine conditions with and: select(.age >= 25 and .age <= 30 and .country == "Japan" and .is_active == true)