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Network securitymedium200 pts0 solves

Cleartext Credentials

A network tap captured a short session between an intern's workstation and an internal web server. Somebody used HTTP, not HTTPS.

Learning objectives

Use a packet analyser to follow streams and recognise credentials sent in clear text (form data and HTTP Basic authentication).

Instructions

Open capture.pcap in Wireshark or tshark (the capture is synthetic). The flag is the password of the service account used for report exports.

Prerequisites: Wireshark/tshark basics.
Flag format: cspk{...}
Files: capture.pcap (1.7 KB) (download after registering)
Useful tools: Wireshark

References

Write-up

The full write-up and learning takeaways unlock after you solve this challenge — spoilers stay hidden until then.