PACTF_2017: Dinosaur Never-Forget System

Category: Points: 30 Description:

Those Dinosaurs… The dinosaurs need some way to archive their messages and news for the future, so they created the Dinosaur Never-forget System. They wanted the login to be public, but they also didn’t want it to be too easy to find. So they hid it in a system more antiquated than the dinosaurs themselves. dinosaurneverforgetsystem.tk

Hint:

They kept records, too.

Write-up

A simple challenge involving TXT DNS records.

$ dig TXT dinosaurneverforgetsystem.tk

; <<>> DiG 9.8.3-P1 <<>> TXT dinosaurneverforgetsystem.tk
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57478
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;dinosaurneverforgetsystem.tk.  IN  TXT

;; ANSWER SECTION:
dinosaurneverforgetsystem.tk. 14439 IN  TXT "edger entry available at LEDGER subdomain -- flag: dinosaurs_must_stay_informed"

;; Query time: 347 msec
;; SERVER: 164.78.239.15#53(164.78.239.15)
;; WHEN: Tue Apr 18 13:29:49 2017
;; MSG SIZE  rcvd: 138

Therefore, the flag is dinosaurs_must_stay_informed.

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