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

# Valentine

> Verified writeups for the Valentine machine of Hack The Box

# Valentine

<p className="machine-summary"><span className="prompt"><code>\$ tldr</code></span> Heartbleed key leak → tmux socket → Dirty Cow privesc</p>

<div className="machine-meta">
  | ·                | ·                                                                                                                                                                                        |
  | ---------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
  | Operating system | Linux                                                                                                                                                                                    |
  | Difficulty       | Easy                                                                                                                                                                                     |
  | Vector           | <span className="vbadge vbadge-linux-privesc">Linux privesc</span>                                                                                                                       |
  | IP               | `10.10.10.79`                                                                                                                                                                            |
  | Retirement date  | 2018-07-28                                                                                                                                                                               |
  | Skills           | SSL Heartbleed Exploitation Cracking Hashes Tmux Socket File Session \[Privilege Escalation] Linux Kernel 2.6.22 \< 3.9 - Dirty Cow PTRACE\_POKEDATA Race Condition privilege Escalation |
</div>

## Writeups

| Language | Author      | Format | Link                                                         |
| -------- | ----------- | ------ | ------------------------------------------------------------ |
| 🇪🇸 ES  | **S4vitar** | Vídeo  | [Open](https://www.youtube.com/watch?v=6vvgfbh9cy4)          |
| 🇬🇧 EN  | **0xdf**    | Texto  | [Open](https://0xdf.gitlab.io/2018/07/28/htb-valentine.html) |
| 🇬🇧 EN  | **IppSec**  | Vídeo  | [Open](https://www.youtube.com/watch?v=XYXNvemgJUo)          |

## Skill resources

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

| Skill                            | Source      | Link                                                                                         |
| -------------------------------- | ----------- | -------------------------------------------------------------------------------------------- |
| Cracking Hashes (hashcat / John) | HackTricks  | [Open](https://book.hacktricks.wiki/en/generic-methodologies-and-resources/brute-force.html) |
| Race Conditions                  | PortSwigger | [Open](https://portswigger.net/web-security/race-conditions)                                 |

## Related skills worth mastering

Brute Force / Rate-Limit Bypass

## If you liked this machine, try

* [Tenet](/en/htb/machines/linux/medio/tenet) — Linux, Medium
* [Toby](/en/htb/machines/linux/insano/toby) — Linux, Insane
* [Arctic](/en/htb/machines/windows/facil/arctic) — Windows, Easy
* [Delivery](/en/htb/machines/linux/facil/delivery) — Linux, Easy
* [Charon](/en/htb/machines/linux/dificil/charon) — Linux, Hard

***

## 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:valentine" data-giscus-lang="en" />

*Last updated: 2026-06-07*

<script type="application/ld+json">
  {`{"@context":"https://schema.org","@type":"TechArticle","headline":"Valentine — HTB Writeup Index","name":"Valentine","url":"https://rootea.es/en/htb/machines/linux/facil/valentine","inLanguage":"en","datePublished":"2018-07-28","dateModified":"2026-06-07","about":{"@type":"Thing","name":"Hack The Box (HTB)"},"keywords":"Cracking Hashes (hashcat / John), Race Conditions","isPartOf":{"@type":"WebSite","name":"rootea.es","url":"https://rootea.es"},"author":{"@type":"Organization","name":"rootea.es"},"proficiencyLevel":"Fácil"}`}
</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/facil/index"},{"@type":"ListItem","position":3,"name":"Easy","item":"https://rootea.es/en/htb/machines/linux/facil/index"},{"@type":"ListItem","position":4,"name":"Valentine","item":"https://rootea.es/en/htb/machines/linux/facil/valentine"}]}`}
</script>