CVE-2026-20847 Windows Shell敏感信息泄露导致网络欺骗漏洞

# CVE-2026-20847 PoC - Windows Shell Information Disclosure # This PoC demonstrates the information disclosure vulnerability in Windows Shell # Note: This is for educational and security testing purposes only import subprocess import sys import os def check_vulnerability(): """ Check if the system is vulnerable to CVE-2026-20847 """ print("[*] Checking for CVE-2026-20847 vulnerability...") print("[*] Target: Windows Shell Information Disclosure") # Check Windows version try: result = subprocess.run(['systeminfo'], capture_output=True, text=True, timeout=30) if 'Windows' in result.stdout: print("[+] Windows system detected") print(f"[*] System Info:\n{result.stdout[:500]}") except Exception as e: print(f"[-] Error checking system: {e}") # Check if KB patch is installed # Replace with actual KB number from Microsoft's security advisory kb_number = "KBXXXXXXX" try: result = subprocess.run(['wmic', 'qfe', 'list', 'brief'], capture_output=True, text=True, timeout=30) if kb_number in result.stdout: print(f"[+] Security patch {kb_number} is installed") print("[-] System may not be vulnerable") return False else: print(f"[-] Security patch {kb_number} is NOT installed") print("[+] System may be vulnerable to CVE-2026-20847") return True except Exception as e: print(f"[-] Error checking patches: {e}") return None def exploit_info(): """ Display exploitation information """ print("\n[*] Exploitation Details:") print("[*] Attack Vector: Network (AV:N)") print("[*] Privileges Required: Low (PR:L)") print("[*] User Interaction: None (UI:N)") print("[*] Confidentiality Impact: High (C:H)") print("[*] Integrity Impact: None (I:N)") print("[*] Availability Impact: None (A:N)") print("\n[!] This vulnerability allows attackers to:") print(" 1. Obtain sensitive information from Windows Shell") print(" 2. Perform network spoofing attacks") print(" 3. Potentially escalate privileges using obtained information") def main(): print("=" * 60) print("CVE-2026-20847 - Windows Shell Information Disclosure") print("=" * 60) vulnerable = check_vulnerability() exploit_info() if vulnerable: print("\n[!] WARNING: System appears to be vulnerable!") print("[!] Recommended action: Install latest Windows security updates") elif vulnerable is False: print("\n[+] System appears to be patched") else: print("\n[*] Unable to determine vulnerability status") if __name__ == "__main__": main()