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Bug 1695196 - Document lack of audience support in 4.1
Summary: Document lack of audience support in 4.1
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Auth
Version: 4.1
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
: 4.1.0
Assignee: Christian Huffman
QA Contact: Chuan Yu
Depends On:
TreeView+ depends on / blocked
Reported: 2019-04-02 16:12 UTC by David Eads
Modified: 2019-04-05 13:22 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2019-04-04 19:05:02 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description David Eads 2019-04-02 16:12:24 UTC
As I understand audiences, I can request a token that has a specific audience, but if the kube-apiserver isn't configured to honor audiences, that token would still be valid for the KAS even if I specified a different audience and the is unexpected.

Comment 2 Mo 2019-04-04 20:04:53 UTC
Assigning to Christian so we can doc that SA token requests and project volumes with serviceAccountToken mount will not work in 4.1

This is not a security issue in 4.1 as:

1. There is no way to request a SA token with an audience in 4.1
2. The authenticator required to honor said token is not enabled in 4.1
3. The kubelet will error if a serviceAccountToken projected volume is used

Thus, there is no risk that a token with an audience will be issued while the audience restriction is "ignored."

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