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.
108 lines
3.9 KiB
Python
108 lines
3.9 KiB
Python
from .Challenge import Challenge
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import requests
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class Pasta(Challenge):
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flag_location = 'flags/pasta.txt'
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history_location = 'history/pasta.txt'
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def distribute(self, flag):
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try:
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with open(self.flag_location, 'w') as f:
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f.write(flag)
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with open(self.history_location, 'a') as f:
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f.write(flag + '\n')
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self.logger.info(f'Flag {flag} written to {self.flag_location}')
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return True
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except Exception as e:
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self.logger.error(f'Could not write flag to {self.flag_location}: {e}')
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return False
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def check(self):
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try:
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url = self.url()
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username = f"checker-{self.random_string(8)}"
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pwd = self.random_string(12)
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flag = open(self.flag_location).read()
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admin_data = {
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'username': 'deomkicer_number_1_fans',
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'password': getattr(self.settings, f'PASSWORD_{self.port}'),
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}
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# login admin and check flag
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response = requests.post(
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f"{url}/auth",
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json=admin_data).json()
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token = response.get('token')
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assert token, "Token is missing in login admin"
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check_flag = requests.get(f"{url}/flag", headers={'Authorization': f"Bearer {token}"}).json()
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assert check_flag.get('flag') == flag, "Flag is missing/mismatch"
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# register
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response = requests.post(
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f"{url}/register",
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json={
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"username": f"{username}",
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"password": f"{pwd}"}).json()
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assert response.get('success') == "User registered succesfully", "Register failed"
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# login with version 1
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response = requests.post(
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f"{url}/auth?version=1",
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json={
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"username": f"{username}",
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"password": f"{pwd}"}).json()
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token = response.get('token')
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assert token, "Token is missing in login v1"
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check_home = requests.get(f"{url}/", headers={'Authorization': f"Bearer {token}"}).json()
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assert check_home.get('username') == username, "Different username found in login v1"
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# login with version 2
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response = requests.post(
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f"{url}/auth?version=2",
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json={
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"username": f"{username}",
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"password": f"{pwd}"}).json()
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token = response.get('token')
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assert token, "Token is missing in login v2"
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check_home = requests.get(f"{url}/", headers={'Authorization': f"Bearer {token}"}).json()
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assert check_home.get('username') == username, "Different username found in login v2"
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# login with version 3
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response = requests.post(
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f"{url}/auth?version=3",
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json={
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"username": f"{username}",
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"password": f"{pwd}"}).json()
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token = response.get('token')
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assert token, "Token is missing in login v3"
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check_home = requests.get(f"{url}/", headers={'Authorization': f"Bearer {token}"}).json()
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assert check_home.get('username') == username, "Different username found in login v3"
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# login with version 4
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response = requests.post(
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f"{url}/auth?version=4",
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json={
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"username": f"{username}",
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"password": f"{pwd}"}).json()
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token = response.get('token')
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assert token, "Token is missing in login v4"
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check_home = requests.get(f"{url}/", headers={'Authorization': f"Bearer {token}"}).json()
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assert check_home.get('username') == username, "Different username found in login v4"
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return True
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except Exception as e:
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self.logger.error(f'Could not check pasta: {e}')
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return False
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