> ## Documentation Index
> Fetch the complete documentation index at: https://rootea.es/llms.txt
> Use this file to discover all available pages before exploring further.

# Json

> Verified writeups for the Json machine of Hack The Box

# Json

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> JSON deser ysoserial.net → AppLocker bypass → Juicy Potato</p>

<div className="machine-meta">
  | ·                | ·                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
  | ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Operating system | Windows                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
  | Difficulty       | Medium                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
  | Vector           | <span className="vbadge vbadge-web">Web</span>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
  | IP               | `10.10.10.158`                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
  | Retirement date  | 2020-02-15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
  | Skills           | Abusing No Redirect Json Deserialization Exploitation - ysoserial.net \[RCE] AppLocker Bypass Abusing SeImpersonatePrivilege - JuicyPotato \[Privilege Escalation] Abusing SeImpersonatePrivilege - Creating a new user Abusing SeImpersonatePrivilege - Adding the user to the local administrators group Abusing SeImpersonatePrivilege - Modifying the registry entry LocalAccountTokenFilterPolicy Playing with psexec.py and wmiexec.py PassTheHash - wmiexec.py Executing commands with CrackMapExec Dumping the SAM with CrackMapExec Enabling RDP with CrackMapExec Playing with Remmina to gain access to the system |
</div>

## Writeups

| Language | Author                   | Format | Link                                                    |
| -------- | ------------------------ | ------ | ------------------------------------------------------- |
| 🇪🇸 ES  | **S4vitar**              | Vídeo  | [Open](https://www.youtube.com/watch?v=nAF0JnTGkNM)     |
| 🇪🇸 ES  | **El Pingüino de Mario** | Vídeo  | [Open](https://www.youtube.com/watch?v=pF7uz_ptuFc)     |
| 🇬🇧 EN  | **0xdf**                 | Texto  | [Open](https://0xdf.gitlab.io/2020/02/15/htb-json.html) |
| 🇬🇧 EN  | **IppSec**               | Vídeo  | [Open](https://www.youtube.com/watch?v=FPgK_udcBig)     |

## Skill resources

Curated documentation for each technique listed in the *Skills* column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

| Skill                       | Source      | Link                                                                          |
| --------------------------- | ----------- | ----------------------------------------------------------------------------- |
| Insecure Deserialization    | PortSwigger | [Open](https://portswigger.net/web-security/deserialization)                  |
| Remote Code Execution (RCE) | HackTricks  | [Open](https://book.hacktricks.wiki/en/pentesting-web/command-injection.html) |

## Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271)

## If you liked this machine, try

* [Celestial](/en/htb/machines/linux/medio/celestial) — Linux, Medium
* [Travel](/en/htb/machines/linux/dificil/travel) — Linux, Hard
* [Chaos](/en/htb/machines/linux/medio/chaos) — Linux, Medium
* [Jewel](/en/htb/machines/linux/medio/jewel) — Linux, Medium
* [Shibboleth](/en/htb/machines/linux/medio/shibboleth) — Linux, Medium

***

## Comments & tips

Did the official writeup not work? Found a smarter trick? Share it here — comments live in [GitHub Discussions](https://github.com/FFuson/HTB_Writeups/discussions).

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*Last updated: 2026-06-07*

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