athack-ctf/chall2026-telneted[AtHack 2026] Pwn challenge about telnetd CVE-2026-24061
Authored by Harsh.
Pwn34/120beginnertelnetRecon team has found another endpoint in the Aliens' network, but we can't seem to be able to connect to it with our tools.
Network captures show a user 'astrax' using it smuggle secret data into and out of their systems.
However, we were able to extract a set of credentials from these captures: "astrax:astraxsverycomplexp4sswd".
Find a way to get in and extract their secrets.
Run challenge container using docker compose
docker compose up -d
Connect using telnet
telnet localhost 53021
To stop the challenge run
docker compose stop
To restart the challenge run
docker compose restart
Did you try solving this challenge?
Did you REALLY try solving this challenge?
ATHACKCTF{73Ln37_1n_7h15_d4y_4n_4g3?}@Hack is an annual CTF (Capture The Flag) competition hosted by HEXPLOIT ALLIANCE and TECHNATION at Concordia University in Montreal, Canada.