FintelVentures / fintel-issues

Public repository to track bugs, issues, and feature requests for Fintel
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Bug Report (2);Victim Flooding #24

Open Ethicalar opened 5 years ago

Ethicalar commented 5 years ago

Hi team,

This time I found this vulnerability in website: https://fintel.io

Description:

I found victim mailbox flooding due to no rate limit on forgot password area The issue is that there is a speed bump missing in the forgot password area of e-mail for a user. This would eventually let the attacker spam to any random e-mail resulting in exhaustion of resources on your side .

I generated more then 100 forgot password requests and I received numbers of password reset requests within no time and i was able to flood the email because there is no rate limitation on forgot password area.

Impact:

This poses a significant threat to the integrity and reputation of your organization.

Attacker can flood anyone email by sending the forgot password emails.

Steps to reproduce:

Send the request to the Burp repeater. Now click go 100 times or as much as you like to. You can see the e-mails being spammed to your inbox.

image.png victimfloding

Fix:

There should be capture code for the protection of rate limitation on forgot password area.

Look forward to hear from you.

Sincerely:

Hassan Ahmed (ethicalar@gmail.com)