HexBrain

HackerOne · Report #161947

Lack of length validation on user address attribute

Validstatus
18upvotes
11 Apr 2019disclosed

How it was found

Hi

The input fields for adding mailing address for swag delivery in https://hackerone.com/settings/swags are not restricted in input lengths. I was able to add (and read the contents via my own address page and the team page(who awards the swag)) over 585728 characters in each of the input fields Name, Street, City, State/Province, Postal code, Country, Phone number without any restriction or error message.

{F113760}

This may lead to server side Denial Of Service attack or over memory consumption. You need to decrease input lengths( or add one if missing)

Thanks Rohit Dua https://github.com/rohit-dua https://in.linkedin.com/in/rohitdua

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original