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

# RedCross

> Verified writeups for the RedCross machine of Hack The Box

# RedCross

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> XSS admin cookie → injection RCE → BOF x64 ROP privesc</p>

<div className="machine-meta">
  | ·                | ·                                                                                                                                                                                                                                       |
  | ---------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Operating system | Linux                                                                                                                                                                                                                                   |
  | Difficulty       | Medium                                                                                                                                                                                                                                  |
  | Vector           | <span className="vbadge vbadge-binary-exploitation">Binary</span>                                                                                                                                                                       |
  | IP               | `10.10.10.113`                                                                                                                                                                                                                          |
  | Retirement date  | 2019-04-13                                                                                                                                                                                                                              |
  | Skills           | Subdomain Enumeration XSS Injection - Stealing the admin user cookie Injection RCE Abusing Custom Binary - Binary Exploitation Buffer Overflow \[x64] \[ROP Attacks using PwnTools] \[NX Bypass] \[ASLR Bypass] \[Privilege Escalation] |
</div>

## Writeups

| Language | Author      | Format | Link                                                                       |
| -------- | ----------- | ------ | -------------------------------------------------------------------------- |
| 🇪🇸 ES  | **S4vitar** | Vídeo  | [Open](https://www.youtube.com/watch?v=prg88ajxAPc)                        |
| 🇬🇧 EN  | **0xdf**    | Texto  | [Open](https://0xdf.gitlab.io/2019/04/13/htb-redcross.html)                |
| 🇬🇧 EN  | **IppSec**  | Vídeo  | [Open](https://www.youtube.com/@ippsec/search?query=HackTheBox%20RedCross) |

## Skill resources

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

| Skill                       | Source      | Link                                                                                                              |
| --------------------------- | ----------- | ----------------------------------------------------------------------------------------------------------------- |
| Subdomain Enumeration       | HackTricks  | [Open](https://book.hacktricks.wiki/en/generic-methodologies-and-resources/external-recon-methodology/index.html) |
| Buffer Overflow (BoF / ROP) | HackTricks  | [Open](https://book.hacktricks.wiki/en/binary-exploitation/stack-overflow/index.html)                             |
| Remote Code Execution (RCE) | HackTricks  | [Open](https://book.hacktricks.wiki/en/pentesting-web/command-injection.html)                                     |
| Cross-Site Scripting (XSS)  | HackTricks  | [Open](https://book.hacktricks.wiki/en/pentesting-web/xss-cross-site-scripting/index.html)                        |
| Cross-Site Scripting (XSS)  | PortSwigger | [Open](https://portswigger.net/web-security/cross-site-scripting)                                                 |

## Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271) · SQL Injection · Server-Side Request Forgery

## If you liked this machine, try

* [Stacked](/en/htb/machines/linux/insano/stacked) — Linux, Insane
* [Buff](/en/htb/machines/windows/facil/buff) — Windows, Easy
* [Schooled](/en/htb/machines/linux/medio/schooled) — Linux, Medium
* [Undetected](/en/htb/machines/linux/medio/undetected) — Linux, Medium
* [CrossFit](/en/htb/machines/linux/insano/crossfit) — Linux, Insane

***

## 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).

<div className="rootea-giscus-wrap" data-giscus-term="machine:redcross" data-giscus-lang="en" />

*Last updated: 2026-07-13*

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"TechArticle","headline":"RedCross — HTB Writeup Index","name":"RedCross","url":"https://rootea.es/en/htb/machines/linux/medio/redcross","inLanguage":"en","datePublished":"2019-04-13","dateModified":"2026-07-13","about":{"@type":"Thing","name":"Hack The Box (HTB)"},"keywords":"Subdomain Enumeration, Buffer Overflow (BoF / ROP), Remote Code Execution (RCE), Cross-Site Scripting (XSS), Cross-Site Scripting (XSS)","isPartOf":{"@type":"WebSite","name":"rootea.es","url":"https://rootea.es"},"author":{"@type":"Organization","name":"rootea.es"},"proficiencyLevel":"Medio"}`}
</script>

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://rootea.es/en"},{"@type":"ListItem","position":2,"name":"Linux","item":"https://rootea.es/en/htb/machines/linux/medio/index"},{"@type":"ListItem","position":3,"name":"Medium","item":"https://rootea.es/en/htb/machines/linux/medio/index"},{"@type":"ListItem","position":4,"name":"RedCross","item":"https://rootea.es/en/htb/machines/linux/medio/redcross"}]}`}
</script>