HexBrain

Snapchat · Report #455645

Exposed Kubernetes API - RCE/Exposed Creds

Validstatus
criticalseverity
$25,000bounty
1,191upvotes
29 Jul 2021disclosed

Summary

@txt3rob found one of Snaps internal Kubernetes instances exposing an API endpoint without authorization to the public. With access to this API he was able to run arbitrary code/jobs as a cluster-admin and gained access to credentials with internal access to a significant number of instances.

During a worldwide kubernetes scan with binaryedge.io i found a K8 exposed internal API endpoint without authorization to the public.

With access to this API I was able to run arbitrary code/jobs as a cluster-admin and gained access to credentials with internal access to a significant number of instances.

How it was found

The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original