Zenoss Core through 5 Beta 3 uses a weak algorithm to hash passwords, which makes it easier for context-dependent attackers to obtain cleartext values via a brute-force attack on hash values in the database, aka ZEN-15413.
https://docs.google.com/spreadsheets/d/1dHAc4PxUbs-4Dxzm1wSCE0sMz5UCMY6SW3PlMHSyuuQ/edit?usp=sharing