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Seattle, WA
December 10–13, 2018
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Thursday, December 13 • 4:30pm - 5:05pm
Shopify’s $25k Bug Report, and the Cluster Takeover That Didn’t Happen - Greg Castle, Google & Shane Lawrence, Shopify

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In May, a security researcher reported a vulnerability in a Shopify microservice and demonstrated how it could be used to access keys from the Google Cloud metadata API. This could have led to a cluster takeover, for which Shopify awarded $25k through its bug bounty program.

Shane will share his experience responding to the report, analyzing Kubernetes audit logs, and hardening the cluster to block the escalation path. Together, Greg and Shane will describe some example Kubernetes audit log queries that can help discover unusual activity in the form of Kubernetes API access, and assess the impact of credential exposure, such as in this report. The collection of example queries will be released for use by the Kubernetes community and we will also share some hardening best practices.

avatar for Greg Castle

Greg Castle

Kubernetes/GKE Security Tech Lead, Google
Greg is the tech lead for the Kubernetes and Google Kubernetes Engine (GKE) security team at Google. Prior to GKE, Greg worked on the Google incident response team developing open-source investigation tools, and on OS X platform hardening. His pre-Google job roles have included pentester... Read More →
avatar for Shane Lawrence

Shane Lawrence

Security Infrastructure Engineer, Shopify
Shane is a Security Infrastructure Engineer at Shopify, where he's securing their GKE cloud platform. His previous work includes SIEM and Log Management at CGI, and IDS engineering at the Canadian Forces Network Operations Centre.

Thursday December 13, 2018 4:30pm - 5:05pm
Ballroom 6C