CVE-2018-15754: UAA issues tokens across identity providers if users with matching usernames exist

Severity

Medium

Vendor

Cloud Foundry Foundation

Affected Cloud Foundry Products and Versions

• UAA release:
  • versions v60 prior to v66.0

Description

Cloud Foundry UAA, versions v60 prior to v66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.

Mitigation

Users of affected versions should apply the following mitigations or upgrades:

• • UAA release v66.0

Credit

This issue was responsibly reported by the Florian Tack and Torsten Luh of SAP.

History

2018-12-10: Initial vulnerability report published.

2018-02-28: Corrected credit section