Cloud Foundry UAA version prior to 73.3.0, contain endpoints that contains improper escaping. An authenticated malicious user with basic read privileges for one identity zone can extend those reading privileges to all other identity zones and obtain private information on users, clients, and groups in all other identity zones.

Cloud Foundry UAA, versions prior to 73.0.0, falls back to appending “unknown.org” to a user's email address when one is not provided and the user name does not contain an @ character. This domain is held by a private company, which leads to attack vectors including password recovery emails sent to a potentially fraudulent address. This would allow the attacker to gain complete control of the user's account.

Cloud Foundry UAA, versions later than 4.6.0 and prior to 4.19.0 except 4.10.1 and 4.7.5 and uaa-release versions later than v48 and prior to v60 except v55.1 and v52.9, does not validate redirect URL values on a form parameter used for internal UAA redirects on the login page, allowing open redirects. A remote attacker can craft a malicious link that, when clicked, will redirect users to arbitrary websites after a successful login attempt.

In Cloud Foundry Foundation cf-release versions prior to v285; cf-deployment versions prior to v1.7; UAA 4.5.x versions prior to 4.5.5, 4.8.x versions prior to 4.8.3, and 4.7.x versions prior to 4.7.4; and UAA-release 45.7.x versions prior to 45.7, 52.7.x versions prior to 52.7, and 53.3.x versions prior to 53.3, the SessionID is logged in audit event logs. An attacker can use the SessionID to impersonate a logged-in user.