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why do pipelines have $BUILDKITE_AGENT_TOKEN set by default? #404

nhooyr opened this Issue Feb 11, 2019 · 2 comments


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nhooyr commented Feb 11, 2019

E.g. in a large org a rogue employee could easily trigger a CI job and print out $BUILDKITE_AGENT_TOKEN and then push a force commit to remove the echo statement and pretty much no one would ever know they have this org level credential.

I'm not sure what a rogue employee could actually do with the agent token, but I can't see the use in exposing it to pipelines, especially by default.


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nhooyr commented Feb 11, 2019

Likewise with the $BUILDKITE_AGENT_ACCESS_TOKEN.From what I understand, the agent access token is used for things like uploading pipelines. However, its per agent and I think thats an issue in exposing it in the pipeline as anyone who grabs it can do things on a per agent basis which could include pipelines they do not have permissions for.

Instead, each pipeline should get a brand new access token it can use. That way, tokens are isolated to only the pipeline that they are exposed in.


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toolmantim commented Feb 13, 2019

This is something we've just recently fixed in buildkite/agent#908 — no longer with the BUILDKITE_AGENT_TOKEN be passed down.

But your feedback about agent token designs, and pipeline permissions, is something we're actively working to improve. is probably a relevant feature request worth voting on!

I'm going to close this issue here though, because it's not really a docs issue. Thanks for the feedback!

@toolmantim toolmantim closed this Feb 13, 2019

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