hacktricks/network-services-pentesting/700-pentesting-epp.md

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# 700 - Pentesting EPP
<details>
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
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## Basic Information
The Extensible Provisioning Protocol (EPP) is a network protocol used for the **management of domain names and other internet resources** by domain name registries and registrars. It enables the automation of domain name registration, renewal, transfer, and deletion processes, ensuring a standardized and secure communication framework between different entities in the domain name system (DNS). EPP is designed to be flexible and extensible, allowing for the addition of new features and commands as the needs of the internet infrastructure evolve.
Basically, it's one of the protocols a **TLD registrar is going to be offering to domain registrars** to register new domains in the TLD.
### Pentest
[**In this very interesting article**](https://hackcompute.com/hacking-epp-servers/) you can see how some security researches found several **implementation of this protocol** were vulnerable to XXE (XML External Entity) as this protocol uses XML to communicate, which would have allowed attackers to takeover tens of different TLDs.
<details>
<summary><strong>Learn AWS hacking from zero to hero with</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
Other ways to support HackTricks:
* If you want to see your **company advertised in HackTricks** or **download HackTricks in PDF** Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
* **Join the** 💬 [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** us on **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
* **Share your hacking tricks by submitting PRs to the** [**HackTricks**](https://github.com/carlospolop/hacktricks) and [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github repos.
</details>