{"id":41971,"date":"2020-10-07T14:05:02","date_gmt":"2020-10-07T07:05:02","guid":{"rendered":"https:\/\/deepquest.code511.com\/blog\/2020\/10\/hashicorp-vault-gcp-iam-integration-authentication-bypass\/"},"modified":"2020-10-07T14:05:02","modified_gmt":"2020-10-07T07:05:02","slug":"hashicorp-vault-gcp-iam-integration-authentication-bypass","status":"publish","type":"post","link":"https:\/\/deepquest.code511.com\/blog\/2020\/10\/hashicorp-vault-gcp-iam-integration-authentication-bypass\/","title":{"rendered":"Hashicorp Vault GCP IAM Integration Authentication Bypass"},"content":{"rendered":"<p>HashiCorp Vault&#8217;s GCP authentication method can be bypassed on gce type roles that do not specify bound_service_accounts. Vault does not enforce that the compute_engine data in a signed JWT token has any relationship to the service account that created the token. This makes it possible to impersonate arbitrary GCE instances, by creating a JWT token with a faked compute_engine struct, using an arbitrary attacker controlled service account.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HashiCorp Vault&#8217;s GCP authentication method can be bypassed on gce type roles that do not specify bound_service_accounts. Vault does not enforce that the compute_engine data in a signed JWT token&#8230;<\/p>\n","protected":false},"author":439,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-41971","post","type-post","status-publish","format-standard","hentry","category-exploit"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4bBYZ-aUX","_links":{"self":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/41971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/users\/439"}],"replies":[{"embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/comments?post=41971"}],"version-history":[{"count":0,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/41971\/revisions"}],"wp:attachment":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/media?parent=41971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/categories?post=41971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/tags?post=41971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}