DLPX-93763 GCP cloud-init may allow privileged user creation #108
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jwk404
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LGTM, pending a good test run.
* Add .whitesource configuration file * DLPX-93075 Configure Mend for cloud-init --------- Co-authored-by: mend-for-github-com[bot] <50673670+mend-for-github-com[bot]@users.noreply.github.com> Co-authored-by: Shibasish Nandi <[email protected]>
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Fix not needed |
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Background
Recently, a customer provided examples of privileged shell access with a custom user created on a GCP deployment. This seemed to indicate that an arbitrary user was created, possibly during VM creation.
In further review and discussion with others in #dlpx-gcp Slack room, it appears that user-metadata can be leveraged to ‘insert’ operations via cloud-init and thereby create additional users on the Delphix VM.
Originally Delphix removed the module `users-groups` from cloud.cfg.tmpl to avoid this issue of being able to create a user. 2 yrs ago, upstream changed the format of the cloud init modules to use underscores rather than hyphens. During a merge conflict, we inadvertently merged the unwanted `users_groups` back into cloud.init.Problem
canonical/cloud-init#4272
Solution
Remove
users_groupsfrom cloud.cfg.tmplTesting Done
https://selfservice-jenkins.eng-tools-prd.aws.delphixcloud.com/job/appliance-build-orchestrator-pre-push/10685/
Note: upgrade failed due to know bug https://perforce.atlassian.net/browse/DLPX-93809