CVE-2026-21990: Oracle VM VirtualBox Core组件高危权限提升漏洞

# CVE-2026-21990 PoC - Oracle VM VirtualBox Core Component Exploitation # Note: This is a conceptual PoC for educational purposes only # Actual exploitation requires specific conditions and environment import ctypes import os import sys def check_virtualbox_version(): """Check if VirtualBox version is vulnerable""" try: # Attempt to get VirtualBox version # Vulnerable versions: 7.1.14, 7.2.4 version_check = "VBoxManage --version" return True # In real scenario, parse version output except Exception as e: print(f"[-] Error checking version: {e}") return False def exploit_cve_2026_21990(): """ Conceptual exploitation steps for CVE-2026-21990: 1. Attacker gains high-privileged access to host system 2. Attacker identifies vulnerable VirtualBox installation 3. Attacker crafts malicious input to Core component 4. Privilege escalation to VirtualBox process context 5. Potential VM escape or host compromise """ print("[*] CVE-2026-21990 - Oracle VM VirtualBox Core Exploitation") print("[*] Target: Oracle VM VirtualBox < 7.1.14 or < 7.2.4") if not check_virtualbox_version(): print("[-] VirtualBox not found or not vulnerable") return False print("[+] Vulnerable VirtualBox installation detected") print("[+] This vulnerability requires high-privileged local access") print("[+] Exploitation leads to complete system compromise") print("[-] PoC demonstration complete - patch immediately") return True if __name__ == "__main__": print("WARNING: This is for authorized security testing only") exploit_cve_2026_21990()