Cyrene
ae50acfe40
Passwords failed on 10/16 challenges while state.json looked correct:
- only the 6 native GEMASTIK XVIII images provision 'ctfuser'; every imported
XVI/XVII image does 'echo root:${PASSWORD} | chpasswd' and logs in as root.
set_ssh_passwords() hardcoded ctfuser, so chpasswd set a password on an
account nobody uses -> 'Permission denied' everywhere.
Registry gains a per-challenge 'ssh_user'; chpasswd now targets the real
login (and ctfuser/ctf when present) and reports failures loudly.
- phew checker: chall.py block-buffers stdout through the docker exec pipe
(PYTHONUNBUFFERED now set) and leaks chall.py inside the container on
timeout (26 orphans, container saturated) -> reaps the whole exec process
group. Startup does a fresh Pailier keygen (~12 s) so crypto reads need
_CRYPTO_TIMEOUT, not the 5 s prompt default.
Adds panel/verify_ssh_creds.py (proves the state->container binding from
inside via a real login), audit_ssh_users.sh, reset_runtime.sh.
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
import requests
|
|
from base64 import b64decode
|
|
|
|
from .Challenge import Challenge
|
|
|
|
|
|
class Hirnfick(Challenge):
|
|
flag_location = 'flags/hirnfick.txt'
|
|
history_location = 'history/hirnfick.txt'
|
|
|
|
def distribute(self, flag):
|
|
try:
|
|
with open(self.flag_location, 'w') as f:
|
|
f.write(flag)
|
|
|
|
with open(self.history_location, 'a') as f:
|
|
f.write(flag + '\n')
|
|
|
|
self.logger.info(f'Flag {flag} written to {self.flag_location}')
|
|
return True
|
|
|
|
except Exception as e:
|
|
self.logger.error(
|
|
f'Could not write flag to {self.flag_location}: {e}')
|
|
return False
|
|
|
|
def check(self):
|
|
try:
|
|
res = requests.post(
|
|
self.url(f'/api/run'),
|
|
timeout=5,
|
|
json={
|
|
"code":
|
|
"+[-->-[>>+>-----<<]<--<---]>-.>>>+.>>..+++[.>]<<<<.+++.------.<<-.>>>>+."
|
|
})
|
|
|
|
assert b64decode(res.json()["output"]) == b"HirnFick 1.0\nHello, World!"
|
|
|
|
return True
|
|
except Exception as e:
|
|
self.logger.error(f'Could not check hirnfick: {e}')
|
|
return False
|