Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in openfun/openedx-docker

Valid

Reported on

Sep 28th 2021


Description

Secure flag is not implemented on the application

Proof of Concept

https://drive.google.com/file/d/10vEIf77qf1ejR14lL5GZCMn9bZmmbIBd/view?usp=sharing

Impact

The secure flag is an option that can be set by the application server when sending a new cookie to the user within an HTTP Response. The purpose of the secure flag is to prevent cookies from being observed by unauthorized parties due to the transmission of a the cookie in clear text. To accomplish this goal, browsers which support the secure flag will only send cookies with the secure flag when the request is going to a HTTPS page. Said in another way, the browser will not send a cookie with the secure flag set over an unencrypted HTTP request. By setting the secure flag, the browser will prevent the transmission of a cookie over an unencrypted channel.

We have contacted a member of the openfun/openedx-docker team and are waiting to hear back 2 months ago
openfun/openedx-docker maintainer validated this vulnerability 2 months ago
0xdhinu has been awarded the disclosure bounty
The fix bounty is now up for grabs
openfun/openedx-docker maintainer confirmed that a fix has been merged on d2bf8a 2 months ago
The fix bounty has been dropped