# GCP - App Engine Unauthenticated Enum

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## App Engine

For more information about App Engine check:

{% content-ref url="../gcp-services/gcp-app-engine-enum.md" %}
[gcp-app-engine-enum.md](../gcp-services/gcp-app-engine-enum.md)
{% endcontent-ref %}

### Brute Force Subdomains

As mentioned the URL assigned to App Engine web pages is **`<project-uniq-name>.appspot.com`** and if a service name is used it'll be: **`<servicename>-dot-<project-uniq-name>.appspot.com`**.

As the **`project-uniq-name`** can be set by the person creating the project, they might be not that random and **brute-forcing them could find App Engine web apps exposed by companies**.

You could use tools like the ones indicated in:

{% content-ref url="./" %}
[.](./)
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Learn & practice GCP Hacking: <img src="../../../.gitbook/assets/image (2) (1).png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="../../../.gitbook/assets/image (2) (1).png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)

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