{"id":44122,"date":"2021-04-07T20:32:04","date_gmt":"2021-04-07T13:32:04","guid":{"rendered":"https:\/\/deepquest.code511.com\/blog\/2021\/04\/openbsd-opensmtpd-6-6-remote-code-execution\/"},"modified":"2021-04-07T20:32:04","modified_gmt":"2021-04-07T13:32:04","slug":"openbsd-opensmtpd-6-6-remote-code-execution","status":"publish","type":"post","link":"https:\/\/deepquest.code511.com\/blog\/2021\/04\/openbsd-opensmtpd-6-6-remote-code-execution\/","title":{"rendered":"OpenBSD OpenSMTPD 6.6 Remote Code Execution"},"content":{"rendered":"<p>smtp_mailaddr in smtp_session.c in OpenSMTPD version 6.6, as used in OpenBSD version 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the &#8220;uncommented&#8221; default configuration. The issue exists because of an incorrect return value upon failure of input validation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>smtp_mailaddr in smtp_session.c in OpenSMTPD version 6.6, as used in OpenBSD version 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session,&#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-44122","post","type-post","status-publish","format-standard","hentry","category-exploit"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4bBYZ-btE","_links":{"self":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/44122","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=44122"}],"version-history":[{"count":0,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/44122\/revisions"}],"wp:attachment":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/media?parent=44122"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/categories?post=44122"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/tags?post=44122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}