Description

The Organizr application allows large characters to insert in the input field "Bookmark Categories" which can allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.

Proof of Concept

1.Login to the application

2.Go to "Tab Editor" -> "Categories" -> "Bookmark Categories".

3.Click on the + button fill in all details and capture the request in burp suites, and send it to Repeater.

4.Now copy the payload from this link:- https://drive.google.com/file/d/11AwLp8Ae1_eJqGb44W9QJDtPmVw-1RSQ/view?usp=sharing and paste after the parameter category= and click on go.

5.You will see application accepts 1,000,000 characters.

Video PoC

https://drive.google.com/file/d/1yGcGjxaTlHlSPvgMak8vCCZe7vFsZMZm/view?usp=sharing

Impact

This vulnerability can be abused by doing a DDoS attack for which genuine users will not able to access resources/applications.