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Summary
Hey folks,
Someone recently submitted an issue to my team about a security issue surrounding Doorkeeper access grants. Seems small but probably worth fixing.
The issue is that post-revocation of an access token, any access grants outstanding are still valid (until expiration which is default 10 mins). Since this code can be exchanged for an access token it should also be revoked with the other access tokens.
Notes are in the respective commits but to summarize changes:
AccessToken.revoke_all_for
to ensure scope is respectedAccessGrant.revoke_all_for
Application.revoke_all_for
which in turn callsrevoke_all_for
on bothAccessGrant
andAccessToken
Application.revoke_all_for
inAuthorizedApplicationsController#destroy
action