HexBrain

U.S. Dept Of Defense · Report #2190808

User automatically logged in as Sys Admin user on https://███/Administration/Administration.aspx

Validstatus
criticalseverity
88upvotes
3 Nov 2023disclosed

How it was found

Description: Any user can access the Administration section of the following URL: https://███ When the user goes to the following domain they are automatically logged in as "████████" which is a sys admin user on the application, this allows any user to upload files, add users, change permissions for users and delete users.

References

Impact

A malicious actor can modify other user's privileges on the application, add users, upload files, delete users. They can also add false information to the application which will jeopardize the integrity of the application. With administrator privileges they have no restrictions on the application.

System Host(s)

https://█████████

Affected Product(s) and Version(s)

CVE Numbers

Steps to Reproduce

Step 1) Go to the following URL: https://███ There you will se that you are logged in as a Sys Admin user

Suggested Mitigation/Remediation Actions

The application should prompt a user to authenticate first before being able to do any other actions on the system.

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