CVE-2021-34527 PoC — Windows Print Spooler Remote Code Execution Vulnerability

Source

https://github.com/d0rb/CVE-2021-34527

Associated Vulnerability

Title: Windows Print Spooler Remote Code Execution Vulnerability (CVE-2021-34527)
Description: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. UPDATE July 7, 2021: The security update for Windows Server 2012, Windows Server 2016 and Windows 10, Version 1607 have been released. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. In addition to installing the updates, in order to secure your system, you must confirm that the following registry settings are set to 0 (zero) or are not defined (Note: These registry keys do not exist by default, and therefore are already at the secure setting.), also that your Group Policy setting are correct (see FAQ): HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint NoWarningNoElevationOnInstall = 0 (DWORD) or not defined (default setting) UpdatePromptSettings = 0 (DWORD) or not defined (default setting) Having NoWarningNoElevationOnInstall set to 1 makes your system vulnerable by design. UPDATE July 6, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. See also KB5005010: Restricting installation of new printer drivers after applying the July 6, 2021 updates. Note that the security updates released on and after July 6, 2021 contain protections for CVE-2021-1675 and the additional remote code execution exploit in the Windows Print Spooler service known as “PrintNightmare”, documented in CVE-2021-34527.

Description

CVE-2021-34527 PrintNightmare PoC

Readme

# 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.
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## ⚠️ Important Notes
Use responsibly: This script is intended for educational purposes only. Do not use it for unauthorized or malicious activities.
Payload: The payload included in the script is a sample and may not work against all targets or scenarios.
Legal implications: Unauthorized scanning, testing, or exploiting of systems is illegal and unethical. Ensure you have proper authorization before using this script.
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## 📜 License
This project is licensed under the MIT License.

File Snapshot

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