HexBrain

U.S. General Services Administration · Report #1168104

Weak password policy leading to exposure of administrator account access

Validstatus
criticalseverity
37upvotes
20 May 2021disclosed

How it was found

Hi,

The login endpoint https://mysmartplans.gsa.gov/Marathon/Default.aspx is having weak password policy.

During the recon, I came across a mysmartplans overview document http://www.accentimaging.com/accent/pdfs/Accent%20MySmartPlans.pdf . In this document few users are mentioned like - rick, ban, tim etc.I tried to login user password combination of these user-names & rick wass found a valid administrator username & password.

username- rick password -rick

This user appears to be administrator user. Hope GSA takes necessary measures to improve user account policies.

PoC

  1. Open url https://mysmartplans.gsa.gov/Marathon/Default.aspx
  2. Enter username rick password rick
  3. You will be logged into user account with administrative access. You can edit, create, update users.

Impact

Admin account compromise.

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