hacktricks/pentesting-web/hacking-with-cookies/cookie-bomb.md

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A cookie bomb is the capability of **adding a large number of large cookies to a user** for a domain and its subdomains with the goal that the victim will always **send large HTTP requests** to the server (due to the cookies) the **server won't accept the request**. Therefore, this will cause a DoS over a user in that domain and subdomains.
A nice **example** can be seen in this write-up: [https://hackerone.com/reports/57356](https://hackerone.com/reports/57356)
And for more information, you can check this presentation: [https://speakerdeck.com/filedescriptor/the-cookie-monster-in-your-browsers?slide=26](https://speakerdeck.com/filedescriptor/the-cookie-monster-in-your-browsers?slide=26)
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