8.8
CVSSv3

CVE-2021-34527

Published: 02/07/2021 Updated: 02/02/2024
CVSS v2 Base Score: 9 | Impact Score: 10 | Exploitability Score: 8
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 833
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Vulnerability Summary

Windows Print Spooler Remote Code Execution Vulnerability (PrintNightmare). A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attack must involve an authenticated user calling RpcAddPrinterDriverEx().

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

microsoft windows server 2008 r2

microsoft windows server 2012 r2

microsoft windows 8.1 -

microsoft windows server 2008 -

microsoft windows 7 -

microsoft windows rt 8.1 -

microsoft windows server 2012 -

microsoft windows server 2019

microsoft windows server 20h2

microsoft windows 10 1809

microsoft windows 10 20h2

microsoft windows 10 1507

microsoft windows 10 1607

microsoft windows server 2016

microsoft windows server 2022

microsoft windows 11 21h2

microsoft windows 10 21h2

microsoft windows 11 22h2

microsoft windows 10 22h2

Vendor Advisories

Check Point Reference: CPAI-2021-1666 Date Published: 26 Feb 2023 Severity: High ...

Exploits

The print spooler service can be abused by an authenticated remote attacker to load a DLL through a crafted DCERPC request, resulting in remote code execution as NT AUTHORITY\SYSTEM This module uses the MS-RPRN vector which requires the Print Spooler service to be running ...

Github Repositories

Powershell script to flip a windows service

Powershell serviceflipper script for Spool service Powershell script to flip the windows spool service on/off to mitigate CVE-2021-34527 Disclaimer I quickly wrote this to mitigate the PrintNightmare thing, so that a user with admin rights can turn on the service on demand quickly It is no solution to the problem and to activate it one needs to lower the powershell security, s

To fight against Windows security breach PrintNightmare! (CVE-2021-34527, CVE-2021-1675)

PrintNightmare Here is a project that will help to fight against Windows security breach PrintNightmare! (CVE-2021-34527) You have to know that a patch has been released by Microsoft against this breach but is not fully functional and fight only RCE (Remote code execution) while LPE (Local privilege elevation) is still working for potential attackers Here are some things to do

RDP Breaker Tool Authors @samir Features Key Features Fetch RDP Hosts: The tool allows users to specify the number of RDP hosts they want to fetch for further assessment Masscan Integration: Users can choose to use masscan, a fast port scanning tool, to identify hosts with open RDP ports Metasploit Integration: Users can choose to use Metasploit, a popular penetration

PrintNightmare (CVE-2021-34527) PoC Exploit

PrintNightmare (CVE-2021-34527) This version of the PrintNightmare exploit is based on the code created by Cube0x0, with the following features: Ability to target multiple hosts Built-in SMB server for payload delivery, removing the need for open file shares Exploit includes both MS-RPRN & MS-PAR protocols (define in CMD args) Implements @gentilkiwi's UNC bypas

A PrintNightmare (CVE-2021-34527) Python Scanner. Scan entire subnets for hosts vulnerable to the PrintNightmare RCE

It Was All A Dream A CVE-2021-34527 (aka PrintNightmare) Python Scanner Allows you to scan entire subnets for the PrintNightmare RCE (not the LPE) and generates a CSV report with the results Tests exploitability over MS-PAR and MS-RPRN This tool has "de-fanged" versions of the Python exploits, it does not actually exploit the hosts however it does use the same vu

My stars, organized

Awesome Stars A curated list of my GitHub stars! Generated by starred Contents ASL Batchfile C C# C++ CSS Clojure Crystal Cuda Dart Dockerfile Elixir Go Groovy HTML Handlebars Haskell Java JavaScript Jinja Jupyter Notebook Kotlin Lua Nim Others PHP Pascal Perl PowerShell Python Rich Text Format Ruby Rust SCSS SVG Scala Shell Svelte Swift TeX TypeScript V Vim Script Vue Zig

A patch for PrintNightmare vulnerability that occurs to print spooler service for Windows machines [CVE-2021-34527]

Introduction PrintNightmare-Patcher, a simple tool that resolves the PrintNightmare vulnerability, which occurs to print spooler service for Windows machines [CVE-2021-34527] In addition, it checks if your system has the relevant security update for it or not Installation git clone githubcom/0xirison/PrintNightmare-Patchergit

An in-depth approach to obfuscating the individual components of a PowerShell payload whether you're on Windows or Kali Linux.

Invoke-PSObfuscation Traditional obfuscation techniques tend to add layers to encapsulate standing code, such as base64 or compression These payloads do continue to have a varied degree of success, but they have become trivial to extract the intended payload and some launchers get detected often, which essentially introduces chokepoints The approach this tool introduces is a

CVE-Reporting Tool

CVE Report Generator Overview This Python script fetches details of Common Vulnerabilities and Exposures (CVEs) from the National Vulnerability Database (NVD) API, processes the data, and generates a detailed HTML report The report includes summaries of CVEs by severity level and attack vector, and detailed information for each CVE Prerequisites Python 3x requests library (

Invoke-PrinterNightmareCheck Resources for the identification and mitigation of CVE-2021-34527

A collection of scripts to help set the appropriate registry keys for CVE-2021-34527

PowerShell-PrintNightmare A collection of scripts to help set the appropriate registry keys for CVE-2021-34527 shared as part of our blogs outlining various mitigation options serversps1 contains the registry settings related to PointAndPrint You still need to install the patch! workstationsps1 is more a hardening script to blocking inbound remote printing on devices you do

CTF flags that were capped

this repo is for challanges in playpicoctforg/practice?originalEvent=70&page=1 sure the code can be made 100x better buuuuuut it's gotta do one thing once so ¯/(°_o)/¯ i've already done Includes ; once while the teacher was talking and the other watching him, so i'm not gonna include it challange basic_file_exploit (2nd):

Various PowerShell scripts created from May 2021 to Sept 2021

PowerShell Collection of PowerShell scripts I created from May 2021 to Sept 2021 Assign-CalendarPermissionps1: Assign-CalendarPermission assigns calendar permissions for one user to another user The use case for this script was a HR applicant tracking program that needed to be able to view every user's calendar availability The HR system was an Azure AD-only user, which

Trabalho_Grau_B Instalação de Dependencias: #pip install requests Url Codigo consulta: wwwcircllu/services/cve-search/ Definição do Trabalho: Data de entrega: 10/06/2022 - Aula 16, até as 19h30 pelo Moodle Data da apresentação: 10/06/2022 - Aula 16, até as 19h30 Itens a serem entregues: código-fonte da i

A patch for PrintNightmare vulnerability that occurs to print spooler service for Windows machines [CVE-2021-34527]

Introduction PrintNightmare-Patcher, a simple tool that resolves the PrintNightmare vulnerability, which occurs to print spooler service for Windows machines [CVE-2021-34527] In addition, it checks if your system has the relevant security update for it or not Installation git clone githubcom/0xirison/PrintNightmare-Patchergit

This is a basic example of how to setup two agents a researcher and a writer. This example uses a local llm setup with Ollama. Your responsible for setting up all the requirements and the local llm, this is just some example code.

A simple crewai example This code uses a simple example of employing two AI agents and a local llm to do work for you In simple terms: *Crew AI used agents to do work for you *We define tasks and assign those tasks to our agents *The agents may also use tools to assist in their tasks This simple example we setup two agents: A security researcher A security writer I used

Just a collection of random scripts

random-scripts Just a collection of random scripts nothing much for now nightmaresh scans a subnet for a potential endpoint that is vulnerable to CVE-2021-34527 saves the ip of possible vulnerable host to a file named "reportcsv" NOTE: Use at your own risk as this was only tested on a lab environment this requires impacket library rpcdumppy installed in your ma

CVE-2021-34527 implementation

printnightmare CVE-2021-34527 implementation

This is a scanner for the service Windows-Print-Spooler in risk Based on CVE-2021-34527 PoC originally created by cube0x0

This is a scanner for the service Windows-Print-Spooler in risk Based on CVE-2021-34527 PoC originally created by cube0x0

PrintNightmare This repo is inteded to help sysadmins to find and mitigate the vulnerability known as "PrintNightmare" (CVE-2021-34527) Module: PrintNightmareCheck Written in bash, it uses RPC server mapping to check if hosts are potentially vulnerable to CVE-2021-34527 It has some dependencies Just run it and read the output, the dependencies will be preventivel

my research about cve

CVE My research about cve: List of cve: CVE-2021-34527 ref: githubcom/JohnHammond/CVE-2021-34527 PPLKiller: githubcom/Mattiwatti/PPLKiller No Import: bidouillesecuritycom/windows-peb-parsing-a-binary-with-no-imports/

How to fix the PrintNightmare vulnerability

PrintNightmare CVE-2021-34527 By now you most probably already heard of the CVE-2021-34527 zero-day vulnerability in all Windows builds since 2003 While there's a fix being pushed by Microsoft, you might still want to restrict devices in your network to be vulnerable These Intune (or Microsoft Endpoint Manager) Remediation scripts might be able to help you resolve the ma

This is a basic example of how to setup two agents a researcher and a writer. This example uses a local llm setup with Ollama. Your responsible for setting up all the requirements and the local llm, this is just some example code.

Crew AI Examples Example 1 local llm no tools This code uses a simple example of employing two AI agents and a local llm to do work for you In simple terms: Crew AI used agents to do work for you We define tasks and assign those tasks to our agents The agents may also use tools to assist in their tasks This simple example we setup two agents: A security researcher A secu

# Fix-CVE-2021-34527 Fix for the security Script Changes ACL in the directory Stop Service PrintSpooler Spooler Changes StartupType to Disabled Add every server in the serverlist.csv and run script.

PsFix-CVE-2021-34527 Fix-CVE-2021-34527 Fix for the security Script Changes ACL in the directory Stop Service PrintSpooler Spooler Changes StartupType to Disabled Add every server in the serverlistcsv and run script

Windows PrintNightmare vulnerability mitigation tool. A tool to start or stop print spooler service with ease for immediate workaround on system flaw. Keep spooler service "ON" during use only. "DISABLE" service startup. CODE BY SRINATH S BHAUMIK

Printnightmare Safe Tool Windows PrintNightmare vulnerability mitigation tool A tool to start or stop print spooler service with ease for immediate workaround on system flaw Keep spooler service "ON" during use only "DISABLE" service startup CODE BY SRINATH S BHAUMIK Available in "releases" extract all files in one directory execute Runbat A

Simple batch script to disable the Microsoft Print Spooler service from system

Disable-Spooler-Service-PrintNightmare-CVE-2021-34527 Simple batch script to disable the Microsoft Print Spooler service from system Run Open the Command and Prompt with elevated privileges, administrative privileges are required to disable the service Run the script \Disable_Spoolerbat

HardeningKitty - Checks and hardens your Windows configuration

HardeningKitty This is the stable version of HardeningKitty from the Windows Hardening Project by Michael Schneider The stable version of HardeningKitty is signed with the code signing certificate of scip AG Since this is the stable version, we do not accept pull requests in this repo, please send them to the development repo HardeningKitty supports hardening of a Windows sy

HardeningKitty and Windows 10 Hardening Introduction The project started as a simple hardening list for Windows 10 After some time, HardeningKitty was created to simplify the hardening of Windows Now, HardeningKitty supports guidelines from Microsoft, CIS Benchmarks, DoD STIG and BSI SiSyPHuS Win10 And of course my own hardening list This is a hardening checklist that can b

HardeningKitty and Windows Hardening settings and configurations

HardeningKitty and Windows 10 Hardening Introduction The project started as a simple hardening list for Windows 10 After some time, HardeningKitty was created to simplify the hardening of Windows Now, HardeningKitty supports guidelines from Microsoft, CIS Benchmarks, DoD STIG and BSI SiSyPHuS Win10 And of course my own hardening list This is a hardening checklist that can b

A central place for offensive (and sometimes not) cybersecurity tools and resources.

Offensive Cybersecurity Toolkit This repository was created to host tools and resources for offensive cybersecurity The section headers below are inspired by the Mitre ATT&CK Framework Other resources that don't fit neatly within one of these categories or those that may not be offensive tools can be found in the overflow page, All Things Cybersecurity This proj

To check if Spooler is on and whether is it vulnerable to CVE 2021-34527

PrintNightMareChecker Quick check to see if Spooler is on and whether is it vulnerable to CVE 2021-34527 nightmarecheckeros1 checks and do a quick fixed to the vulnerability resetps1 enable the Spooler service to allow printing Screenshot

Invoke-PrinterNightmareCheck Resources for the identification and mitigation of CVE-2021-34527

HardeningKitty This is the stable version of HardeningKitty from the Windows Hardening Project by Michael Schneider The stable version of HardeningKitty is signed with the code signing certificate of scip AG HardeningKitty supports hardening of a Windows system The configuration of the system is retrieved and assessed using a finding list In addition, the system can be hard

CVE-2021-34527 AddPrinterDriverEx() Privilege Escalation

CVE-2021-34527 CVE-2021-34527 LPE exploit using AddPrinterDriverEx() - this is a weaponized version of the LPE that can be used to escalate a DLL to SYSTEM and will also clean up artifacts The LPE impacts Windows Desktop 7,8,81,10,11 & Server 2008,2012,2016,2019 This visual studio project will create statically compiled x86 and x64 binaries for testing purposes Thes

Inert test code for print nightmare expolit

It Was All A Dream A CVE-2021-34527 (aka PrintNightmare) Python Scanner Allows you to scan entire subnets for the PrintNightmare RCE (not the LPE) and generates a CSV report with the results Tests exploitability over MS-PAR and MS-RPRN This tool has "de-fanged" versions of the Python exploits, it does not actually exploit the hosts however it does use the same vu

Fix for PrintNightmare CVE-2021-34527

Printnightmare Fix for PrintNightmare CVE-2021-34527 Run disable-spoolerps1 file as administrator to disable spooler powershellexe -executionpolicy bypass -file \disable-spoolerps1 For batch disabling, make a server list with the names of all your servers (eg serverlisttxt) and run the file disable-spoolercmd as administrator to

CVE-2021-34527 PrintNightmare PoC

CVE-2021-34527 PrintNightmare PoC 👾 📝 Description This simple Python script allows you to send a payload to a target IP address and port using the SMB protocol It's designed to demonstrate the use of an SMB exploit payload for educational purposes The payload is a hard-coded SMB message containing a specific sequence of bytes ⚠️ Important Notes Use responsibl

Various PowerShell scripts created from May 2021 to Sept 2021

PowerShell Collection of PowerShell scripts I created from May 2021 to Sept 2021 Assign-CalendarPermissionps1: Assign-CalendarPermission assigns calendar permissions for one user to another user The use case for this script was a HR applicant tracking program that needed to be able to view every user's calendar availability The HR system was an Azure AD-only user, which

Github profile

Welcome to Hacker House open-source releases All files released by Hacker House are available under a Attribution-NonCommercial-NoDerivatives 40 International license unless otherwise explicitly stated These repositories provide educational content for ethical hacking and cyber security practioners Use in ANY criminal activity is strictly prohibited and against the terms of

cve_scraper python script to scrape tenable website for plugin data associated with a CVE import data via excel workbook (xlsx) exports plugin data via csv create workbook with no field headers, just list the CVE numbers in the column A, starting with A1; ensure to save as workbook (xlsx); for example: (cell A1), type "CVE-2019-0708" (without quotes), (cell A2) &qu

PowerShell-Scripts Please read the header descriptions and comments in each script body, some contain important instructions or warnings ALECps1: - Application List Extractor & Comparator: Extract List of Installed Application from any computer and output results to C:\Temp & Compare differences between installed applications from two computers extracted Inst

Tools, Resources, Guides, Infographics, etc

Hacker Arsenal Tookit (HaRT) Table of Contents Introduction 🌟 Active Directory 🔒 Adversarial Operations 🛡️ Aerospace ✈️ AI 🤖 Attack Surface Management 📡 Biological Security (BioSec/Biohacking) 🧬 Binary Exploitation 💾 Bitlocker 🔐 Burp Suite 🕷️ Car Hacking 🚗 Career 🌐 Charitable 🎁 CTF 🚩 Cloud ☁️ Conferences 🎙️ Content Gen

This simple PowerShell script is in response to the "PrintNightmare" vulnerability. This was designed to give a end user the ability to stop and disable the "Print Spooler" service on their computer while awaiting a fix from Microsoft.

CVE-2021-34527-PrintNightmare-Workaround This simple PowerShell script is in response to the "PrintNightmare" vulnerability This was designed to give a end user the ability to stop and disable the "Print Spooler" service on their computer while awaiting a fix from Microsoft When the service is not running and a user runs the script, it gives them the optio

Workaround for Windows Print Spooler Remote Code Execution Vulnerability(CVE-2021-34527). See: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527

disable-RegisterSpoolerRemoteRpcEndPoint Workaround for Windows Print Spooler Remote Code Execution Vulnerability(CVE-2021-34527) See: msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 Update 2021-07-08: Microsoft released a patch Microsoft already released a patch for this vulnerability, so keeping your system up to date should be enough However, you can s

HardeningKitty This is the stable version of HardeningKitty from the Windows Hardening Project by Michael Schneider The stable version of HardeningKitty is signed with the code signing certificate of scip AG HardeningKitty supports hardening of a Windows system The configuration of the system is retrieved and assessed using a finding list In addition, the system can be hard

HardeningKitty This is the stable version of HardeningKitty from the Windows Hardening Project by Michael Schneider The stable version of HardeningKitty is signed with the code signing certificate of scip AG Since this is the stable version, we do not accept pull requests in this repo, please send them to the development repo HardeningKitty supports hardening of a Windows sy

A patch for PrintNightmare vulnerability that occurs to print spooler service for Windows machines [CVE-2021-34527]

Introduction PrintNightmare-Patcher, a simple tool that resolves the PrintNightmare vulnerability, which occurs to print spooler service for Windows machines [CVE-2021-34527] In addition, it checks if your system has the relevant security update for it or not Installation git clone githubcom/0xirison/PrintNightmare-Patchergit

Windows Print Spooler Service RCE CVE-2021-1675 (PrintNightmare)

Windows Print Spooler Service RCE CVE-2021-1675 (PrintNightmare) How to disable the Print Spooler service ? CMD Shell net start | findstr -i "spooler" net stop spooler REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\Spooler" /v "Start " /t REG_DWORD /d "4" /f PowerShell Get-Service -Name Spooler Stop-Service -Name Spooler -Force Set-Serv

PowerShell script to check if system is vulnerable to the PrintNightmare vulnerability, along with some manual checks.

PrintNightmareCheck This repository contains some manul checks to see if the system is vulnerable to the PrintNightmare vulnerability (CVE-2021-1675, CVE-2021-34527) and also a PowerShell script to automate the process Please note that this is the first PowerShell script I have ever written myself so do not rely on it! Manual checks Check if Print Spooler service is running #

Set of EVTX samples (>270) mapped to MITRE Att@k tactic and techniques to measure your SIEM coverage or developed new use cases.

EVTX to MITRE Att@ck Project purpose EVTX to MITRE Att@ck is a Security Information Management System orientated project It provides >270 Windows IOCs indicators classified per Tactic and Technique in order to address different security scenarios with your SIEM: Measure your security coverage Enhance your detection capacities Identify security gaps or uncovered threats

OKU 2105 Capstone Research on PrintNightmare

Welcome to our PrintNightmare exploit Capstone writeup This is our final project for the OKU 2105 Fullstack Academy Cybersecurity course We hope we will educate you on this exploit and how to mitigate it This project centers on CVE-2021-1675 + CVE-2021-34527, also known as the zero-day exploit "PrintNightmare" There have been subsequent exploits related to this,

A curated list of awesome C-Sharp frameworks, libraries and software.

awesome-c-sharp A curated list of awesome C-Sharp frameworks, libraries and software shadowsocks/shadowsocks-windows - A C# port of shadowsocks Ryujinx/Ryujinx - Experimental Nintendo Switch Emulator written in C# dotnet-architecture/eShopOnContainers - Cross-platform NET sample microservices and container based application that runs on Linux Windows and macOS Powered by N

microsoft-vulnerabilidades Vulnerabilidade de execução remota de código do Spooler de Impressão do Windows CVE-2021-34527 fonte: msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 Vulnerabilidade de Segurança Lançado: 01/07/2021 Last updated: 15 de jul de 2021 Assigning CNA: Microsoft MITRE CVE-2021-34527 CVSS:30 88

Collection of C# projects. Useful for pentesting and redteaming.

RedCsharp Offensive C# tools CasperStager PoC for persisting NET payloads in Windows Notification Facility (WNF) state names using low-level Windows Kernel API calls CSExec An implementation of PSExec in C# CSharpCreateThreadExample C# code to run PIC using CreateThread CSharpScripts Collection of C# scripts CSharpSetThreadContext C# Shellcode Runner to execute

Repository for scripts of cyber security correlates

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Installation Before running the exploit you need to install my version of Impacket and after that you're gucc

Mitigation for CVE-2021-34527 RCE by setting WRITE ACLs

CVE-2021-34527_mitigation Mitigation for CVE-2021-34527 RCE by setting WRITE ACLs These scripts are both to add and remove CVE-2021-34527(PrintNightmare) ACL mitigations that I wrote with assistance from /u/AforAnonymous from the reddit thread by Huntress in /r/MSP I've personally tested this using a vulnerable Windows 1909 Host Implementing the ACL mitigation caused Pr

Porting of mimikatz sekurlsa::logonpasswords, sekurlsa::ekeys and lsadump::dcsync commands

SharpKatz Porting of mimikatz sekurlsa::logonpasswords, sekurlsa::ekeys and lsadump::dcsync commands Usage Ekeys SharpKatzexe --Command ekeys list Kerberos encryption keys Msv SharpKatzexe --Command msv Retrive user credentials from Msv provider Kerberos SharpKatzexe --Command kerberos Retrive user credentials from Kerberos provider Tspkg SharpKatzexe --Command tspk

CVE-2021-1675 / CVE-2021-34527 - PrintNightmare Python, C# and PowerShell Exploits Implementations (LPE & RCE)

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Patch update Microsoft has released a patch to mitigate against these attacks but if these values below are presen

Small Powershell Script to detect Running Printer Spoolers on Domain Controller

CVE-2021-1675 / CVE-2021-34527 Two mini Script to check if the PrintSpooler Serivce is running within the Forest CVE-2021-1675: msrcmicrosoftcom/update-guide/en-US/vulnerability/CVE-2021-1675 CVE-2021-34527 aka PrintNightmare msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 Scripts Detect running Printer Spooler Service on DCs: githubcom/

Python implementation for PrintNightmare (CVE-2021-1675 / CVE-2021-34527)

PrintNightmare Python implementation for PrintNightmare (CVE-2021-1675 / CVE-2021-34527) using standard Impacket Installtion $ pip3 install impacket Usage Impacket v0923 - Copyright 2021 SecureAuth Corporation usage: printnightmarepy [-h] [-debug] [-port [destination port]] [-target-ip ip address] [-hashes LMHASH:NTHASH] [-no-pass] [-

Cve-2021-1675 or cve-2021-34527? Detailed analysis and exploitation of windows print spooler 0day vulnerability!!!

CVE-2021-34527-1675 Cve-2021-1675 or cve-2021-34527? Detailed analysis and exploitation of windows print spooler 0day vulnerability!!!

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Installation Before running the exploit you need to install my version of Impacket and after that you're gucc

Use to build an anonymous SMB file server.

Invoke-BuildAnonymousSMBServer Use to build an anonymous SMB file server This is useful for testing CVE-2021-1675 and CVE-2021-34527 Test is successful on the following system: Windows 7 Windows 8 Windows 10 Windows Server 2012 Windows Server 2012 R2 Windows Server 2016 渗透技巧——通过命令行开启Windows系统的匿名访问共享

Mitigation for CVE-2021-34527 RCE by setting WRITE ACLs

CVE-2021-34527_mitigation Mitigation for CVE-2021-34527 RCE by setting WRITE ACLs These scripts are both to add and remove CVE-2021-34527(PrintNightmare) ACL mitigations that I wrote with assistance from /u/AforAnonymous from the reddit thread by Huntress in /r/MSP I've personally tested this using a vulnerable Windows 1909 Host Implementing the ACL mitigation caused Pr

PrintNightmare (CVE-2021-1675) This Zeek script detects successful RpcAddPrinterDriver{,Ex} DCE RPC events, which are required to successfully exploit the vulnerability Tests are based on exploit PCAP from Lares Lab Tested with Zeek versions 302 and 401 Notices Printer_Driver_Changed_Successfully indicates the printer driver was changed successfully Suricata We have a

CVE-2021-1675 Detection Info

From Lares Labs: Detection & Remediation Information for CVE-2021-1675 & CVE-2021-34527 🚨 Patch released: msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 The patch has been confirmed to fix RCE however local priviledge escalation appears to not be patched as of yet Therefore the workarounds listed below are still recommended This repo c

see https://github.com/cube0x0/CVE-2021-1675

Print Nightmare 分析报告 Table of Contents 漏洞基本信息 CVE-2021-1675 调用流程 Windows 打印后台处理程序体系架构 函数版本选择 API 函数发送 RPC 请求到 spooler 服务器上 MSRPC 机制 spoolsvexe 处理 API 请求 本地打印提供程序的函数实现逻辑 漏洞的利用方法 利用程序的使用方法 利用程序的运行结果

PrintNightmare - Windows Print Spooler RCE/LPE Vulnerability (CVE-2021-34527, CVE-2021-1675) proof of concept exploits

PrintNightmare - Windows Print Spooler RCE/LPE Vulnerability (CVE-2021-34527, CVE-2021-1675) Summary This is a remote code execution vulnerability that can be used to obtain SYSTEM level privileges by an authenticated remote user against Windows machines running the print spooler service An attacker could then use that access to create new accounts, attempt to install programs

A collection of Windows print spooler exploits containerized with other utilities for practical exploitation.

SpoolSploit A collection of Windows print spooler exploits containerized with other utilities for practical exploitation Summary SpoolSploit is a collection of Windows print spooler exploits containerized with other utilities for practical exploitation A couple of highly effective methods would be relaying machine account credentials to escalate privileges and execute malicio

PrintNightmare exploit CVE-2021-1675 / CVE-2021-34527 exploit Reflective Dll implementation of the PrintNightmare PoC by Cornelis de Plaa (@Cneelis) The exploit was originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) It can be used as Remote Code Execution (RCE) exploit (screenshot 1), It can be used for Privilege Escalation (screenshot 2)

PrintNightmare This is an adaptation of the original CVE-2021-1675 / CVE-2021-34527 python code from Cube0x0 (githubcom/cube0x0/CVE-2021-1675) and the code that was Benjamin Deply incorporated into Mimikatz (githubcom/gentilkiwi/mimikatz/) Some of the PAR functionality was incorporated from byt3bl33d3r's ItWasAllADream (githubcom/byt3bl33d3r/It

Kritische Sicherheitslücke PrintNightmare CVE-2021-34527

Kritische Sicherheitslücke PrintNightmare CVE-2021-1675, CVE-2021-34527 Out-of-Band (OOB) Security Update available for CVE-2021-34527 MSRC / By MSRC Team / July 6, 2021 *** Today Microsoft released an Out-of-Band (OOB) security update for CVE-2021-34527, which is being discussed externally as PrintNightmare This is a cumulative update release, so it contains all previous

Python implementation for PrintNightmare (CVE-2021-1675 / CVE-2021-34527)

PrintNightmare Python implementation for PrintNightmare (CVE-2021-1675 / CVE-2021-34527) using standard Impacket Installtion $ pip3 install impacket Usage Impacket v0923 - Copyright 2021 SecureAuth Corporation usage: printnightmarepy [-h] [-debug] [-port [destination port]] [-target-ip ip address] [-hashes LMHASH:NTHASH] [-no-pass] [-

OKU 2105 Capstone Research on PrintNightmare

Welcome to our PrintNightmare exploit Capstone writeup This is our final project for the OKU 2105 Fullstack Academy Cybersecurity course We hope we will educate you on this exploit and how to mitigate it This project centers on CVE-2021-1675 + CVE-2021-34527, also known as the zero-day exploit "PrintNightmare" There have been subsequent exploits related to this,

PrintNightmare - Windows Print Spooler RCE/LPE Vulnerability (CVE-2021-34527, CVE-2021-1675) proof of concept exploits

PrintNightmare - Windows Print Spooler RCE/LPE Vulnerability (CVE-2021-34527, CVE-2021-1675) Summary This is a remote code execution vulnerability that can be used to obtain SYSTEM level privileges by an authenticated remote user against Windows machines running the print spooler service An attacker could then use that access to create new accounts, attempt to install programs

Small Powershell Script to detect Running Printer Spoolers on Domain Controller

CVE-2021-1675 / CVE-2021-34527 Two mini Script to check if the PrintSpooler Serivce is running within the Forest CVE-2021-1675: msrcmicrosoftcom/update-guide/en-US/vulnerability/CVE-2021-1675 CVE-2021-34527 aka PrintNightmare msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 Scripts Detect running Printer Spooler Service on DCs: githubcom/

Small Powershell Script to detect Running Printer Spoolers on Domain Controller

CVE-2021-1675 / CVE-2021-34527 Two mini Script to check if the PrintSpooler Serivce is running within the Forest CVE-2021-1675: msrcmicrosoftcom/update-guide/en-US/vulnerability/CVE-2021-1675 CVE-2021-34527 aka PrintNightmare msrcmicrosoftcom/update-guide/vulnerability/CVE-2021-34527 Scripts Detect running Printer Spooler Service on DCs: githubcom/

Set of SIGMA rules (>320) mapped to MITRE Att@k tactic and techniques

SIGMA detection rules Project purpose: SIGMA detection rules provides a free set of >320 advanced correlation rules to be used for suspicious hunting activities How to use the rules: The SIGMA rules can be used in different ways together with your SIEM: Using the native SIGMA converter: githubcom/SigmaHQ/sigma Using SOC Prime online SIGMA converter: un

Sponsored by       PowerSharpPack Many useful offensive CSharp Projects wraped into Powershell for easy usage Why? In my personal opinion offensive Powershell is not dead because of AMSI, Script-block-logging, Constrained Language Mode or other protection features Any of these mechanisms can be bypassed Since most new innovative offensive security projects ar

SpoolSploit A collection of Windows print spooler exploits containerized with other utilities for practical exploitation Summary SpoolSploit is a collection of Windows print spooler exploits containerized with other utilities for practical exploitation A couple of highly effective methods would be relaying machine account credentials to escalate privileges and execute malicio

CVE-2021-34527 - PrintNightmare LPE (PowerShell) Caleb Stewart | John Hammond | June 1, 2021 UPDATE June 2 2021: Microsoft has released an advisory on CVE-2021-34527, correctly terming that specific identifier as the PrintNightmare vulnerability exploit Previously, the community was assuming CVE-2021-1675 "was PrintNightmare" as the June 8 path did not resolve th

Local Privilege Escalation Edition for CVE-2021-1675/CVE-2021-34527

Local Privilege Escalation Edition of CVE-2021-1675/CVE-2021-34527 Local Privilege Escalation implementation of the CVE-2021-1675/CVE-2021-34527 (aka PrintNightmare) The exploit is edited from published by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Open the project on MSVC and compile with x64 Release mode Exploit automatically finds UNIDRVDLL, no ch

C# and Impacket implementation of PrintNightmare CVE-2021-1675/CVE-2021-34527

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Patch update Microsoft has released a patch to mitigate against these attacks but if these values below are presen

PrintNightmare-Windows Print Spooler RCE/LPE Vulnerability(CVE-2021-34527, CVE-2021-1675) ABOUT THE WINDOWS PRINT SPOOLER A printer spooler is an application which manages the paper printing jobs sent from a computer to a printer and also this service allows the system to act as print clients or print servers It’s a definite to have a print spooler service on the compute

Learn about the vulnerability known as PrintNightmare (CVE-2021-1675) and (CVE-2021-34527)

TryHackMe | PrintNightmare PrintNightmare Learn about the vulnerability known as PrintNightmare (CVE-2021-1675) and (CVE-2021-34527) Task 6 Detection: Windows Event Logs Event Viewer > Applications and Services Logs > Microsoft > Windows > PrintService > Admin %SystemRoot%\System32\Winevt\Logs\Microsoft-Windows-PrintService%4Adminevtx Lo

Sponsored by       PowerSharpPack Many useful offensive CSharp Projects wraped into Powershell for easy usage Why? In my personal opinion offensive Powershell is not dead because of AMSI, Script-block-logging, Constrained Language Mode or other protection features Any of these mechanisms can be bypassed Since most new innovative offensive security projects ar

SpoolSploit A collection of Windows print spooler exploits containerized with other utilities for practical exploitation Summary SpoolSploit is a collection of Windows print spooler exploits containerized with other utilities for practical exploitation A couple of highly effective methods would be relaying machine account credentials to escalate privileges and execute malicio

CVE-2021-34527 - PrintNightmare LPE (PowerShell) Caleb Stewart | John Hammond | June 1, 2021 UPDATE June 2 2021: Microsoft has released an advisory on CVE-2021-34527, correctly terming that specific identifier as the PrintNightmare vulnerability exploit Previously, the community was assuming CVE-2021-1675 "was PrintNightmare" as the June 8 path did not resolve th

This is a PrintNightmare POC I wrote in my endeavour to better learn C, the WinAPI, and exploit/malware dev

CNightmare - CVE-2021-1675 POC Warning Obviously, this exploit has long been patched, however, I have no doubt there would still be systems around that are vulnerable to this kind of attack Therefore, under no circumstances is this exploit to be used on a system which the individual running the exploit either does not own or does not have explicit permission to do so Descript

PoC test case Windows Vulnerabilities PrintNightmare CVE-2021-34527/CVE-2021-1675 andrewroderoscom/exploiting-printnightmare/ pencerio/hacking/hack-printnightmare/ wwwinfosecmattercom/metasploit-module-library/?mm=exploit/windows/dcerpc/cve_2021_1675_printnightmare EthernalBlue MS-17-010 sparshjazzmediumcom/hack-the-box-blue-e9c0b0e4b33d

PowerSharpPack Many useful offensive CSharp Projects wraped into Powershell for easy usage Why? In my personal opinion offensive Powershell is not dead because of AMSI, Script-block-logging, Constrained Language Mode or other protection features Any of these mechanisms can be bypassed Since most new innovative offensive security projects are written in C# I decided to make t

INTRODUCTION TO ACTIVE DIRECTORY xfreerdp /v:10129202146 /u:htb-student_adm /p:Academy_student_DA! Para este modulo se van a hacer tareas que haria alguien que administra un active directory primero xfreerdp /v:10129202146 /u:htb-student_adm /p:Academy_student_DA! Estructura La estructura basica de active directory es FOREST (que

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Patch update Microsoft has released a patch to mitigate against these attacks but if these values below are presen

Sponsored by       PowerSharpPack Many useful offensive CSharp Projects wraped into Powershell for easy usage Why? In my personal opinion offensive Powershell is not dead because of AMSI, Script-block-logging, Constrained Language Mode or other protection features Any of these mechanisms can be bypassed Since most new innovative offensive security projects a

Usefull escalation of privilege Windows

usefull-elevation-of-privilege English | 中文简体 Category instruction Author 0x727 Team 0x727 Open source tools will continue for some time to come Position This is used to store information about Windows privilege escalation exploits Language C++、C# Windows Elevation of Privilege CVE Verified Exploit Comment CVE-2021-1675 true CVE-2021-1675 ⚡

The LPE technique does not need to work with remote RPC or SMB, as it is only working with the functions of Print Spooler. * This script embeds a Base64-encoded GZIPped payload for a custom DLL, that is patched according to your arguments, to easily add a new user to the local administrators group. * This script embeds methods from PowerSploit/…

CVE-2021-34527 - PrintNightmare LPE (PowerShell) Caleb Stewart | John Hammond | June 1, 2021 UPDATE June 2 2021: Microsoft has released an advisory on CVE-2021-34527, correctly terming that specific identifier as the PrintNightmare vulnerability exploit Previously, the community was assuming CVE-2021-1675 "was PrintNightmare" as the June 8 path did not resolve th

Sponsored by       PowerSharpPack Many useful offensive CSharp Projects wraped into Powershell for easy usage Why? In my personal opinion offensive Powershell is not dead because of AMSI, Script-block-logging, Constrained Language Mode or other protection features Any of these mechanisms can be bypassed Since most new innovative offensive security projects ar

CVE-2021-1675 / CVE-2021-34527 Impacket implementation of the PrintNightmare PoC originally created by Zhiniang Peng (@edwardzpeng) & Xuefeng Li (@lxf02942370) Tested on a fully patched 2019 Domain Controller Execute malicious DLL's remote or locally Patch update Microsoft has released a patch to mitigate against these attacks but if these values below are presen

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