Pivoting Clouds in AWS Organizations

AWS Organizations is a service offered by AWS that allows a user to logically bind together a large number of AWS accounts under one "organization". While this helps for organizational purposes, it presents several unique pathways for a pentester allowing one to tunnel through the inherent boundaries that might exist in a single AWS account. Using AWS Organizations, I show how one can turn a single account takeover into a multi-account takeover drastically increasing the blast radius. The talk hopes to provide both a technical perspective and abstract-enough overview to be useful to both in-the-weeds pentesters and general managers/business owners alike. The talk covers - AWS Organization overview - Easy way to pivot to member account (account creation) - Trusted access & delegated administration overview - Using trusted access & delegated administration to indirectly/directly access member accounts - A new Organization security feature released 2022 + security implications - An overview of available tooling created by the speaker to assist in enumerating organizations in the open source tool Pacu.

Scott Weston

Scott Weston

Scott Weston is a Senior Security Consultant at NetSPI originally from southern CA and currently based out of Minneapolis, MN. He has 3ish years of experience in information security/pentesting with his involvement including general web applications, GraphQL, and cloud environments (specifically AWS). He has contributed to the open-source AWS pentesting tool, Pacu, by adding a modules for AWS Organizations. He also created a large AWS deck designed for beginners to present to the San Diego Defcon group located https://www.linkedin.com/posts/webbinroot_aws-from-zero-to-pacu-activity-6996999634782994432-q0oy. He has participated in some bug bounties/VDPs and is mentioned on the International Committee of the Red Cross (ICRC) https://www.icrc.org/en/vulnerability-disclosure/hall-of-fame. In his spare time, he enjoys pursuing individual bug bounties and interesting avenues of pentesting.

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Pivoting Clouds in AWS Organizations

AWS Organizations is a service offered by AWS that allows a user to logically bind together a large number of AWS accounts under one "organization". While this helps for organizational purposes, it presents several unique pathways for a pentester allowing one to tunnel through the inherent boundaries that might exist in a single AWS account. Using AWS Organizations, I show how one can turn a single account takeover into a multi-account takeover drastically increasing the blast radius. The talk hopes to provide both a technical perspective and abstract-enough overview to be useful to both in-the-weeds pentesters and general managers/business owners alike. The talk covers - AWS Organization overview - Easy way to pivot to member account (account creation) - Trusted access & delegated administration overview - Using trusted access & delegated administration to indirectly/directly access member accounts - A new Organization security feature released 2022 + security implications - An overview of available tooling created by the speaker to assist in enumerating organizations in the open source tool Pacu.

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