Links

GCP - Deploymentmaneger Privesc

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deploymentmanager

deploymentmanager.deployments.create

This single permission lets you launch new deployments of resources into GCP with arbitrary service accounts. You could for example launch a compute instance with a SA to escalate to it.
You could actually launch any resource listed in gcloud deployment-manager types list
In the original research following script is used to deploy a compute instance, however that script won't work. Check a script to automate the creation, exploit and cleaning of a vuln environment here.

deploymentmanager.deployments.update

This is like the previous abuse but instead of creating a new deployment, you modifies one already existing (so be careful)

deploymentmanager.deployments.setIamPolicy

This is like the previous abuse but instead of directly creating a new deployment, you first give you that access and then abuses the permission as explained in the previous deploymentmanager.deployments.create section.

References

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