HackTricks CloudGCP - App Engine Unauthenticated Enum
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tip
Learn & practice AWS Hacking:
HackTricks Training AWS Red Team Expert (ARTE)
Learn & practice GCP Hacking: 
HackTricks Training GCP Red Team Expert (GRTE)
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App Engine
For more information about App Engine check:
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:
GCP - Unauthenticated Enum & Access
tip
Learn & practice AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE)
Learn & practice GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)
Support HackTricks
- Check the subscription plans!
- Join the 💬 Discord group or the telegram group or follow us on Twitter 🐦 @hacktricks_live.
- Share hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.