{"id":50403,"date":"2023-03-31T00:49:37","date_gmt":"2023-03-30T17:49:37","guid":{"rendered":"https:\/\/packetstormsecurity.com\/files\/171606\/cve_2023_21768_afd_lpe.rb.txt"},"modified":"2023-03-31T00:49:37","modified_gmt":"2023-03-30T17:49:37","slug":"ancillary-function-driver-afd-for-winsock-privilege-escalation","status":"publish","type":"post","link":"https:\/\/deepquest.code511.com\/blog\/2023\/03\/ancillary-function-driver-afd-for-winsock-privilege-escalation\/","title":{"rendered":"Ancillary Function Driver (AFD) For Winsock Privilege Escalation"},"content":{"rendered":"<p> A vulnerability exists in the Windows Ancillary Function Driver for Winsock (afd.sys) can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\\SYSTEM. Due to a flaw in AfdNotifyRemoveIoCompletion, it is possible to create an arbitrary kernel Write-Where primitive, which can be used to manipulate internal I\/O ring structures and achieve local privilege escalation. This exploit only supports Windows 11 22H2 up to build 22621.963 (patched in January 2023 updates). <\/p>\n","protected":false},"excerpt":{"rendered":"<p>A vulnerability exists in the Windows Ancillary Function Driver for Winsock (afd.sys) can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\\SYSTEM. Due to a flaw&#8230;<\/p>\n","protected":false},"author":439,"featured_media":0,"comment_status":"open","ping_status":"closed","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-50403","post","type-post","status-publish","format-standard","hentry","category-exploit"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4bBYZ-d6X","_links":{"self":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/50403","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=50403"}],"version-history":[{"count":0,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/posts\/50403\/revisions"}],"wp:attachment":[{"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/media?parent=50403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/categories?post=50403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/deepquest.code511.com\/blog\/wp-json\/wp\/v2\/tags?post=50403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}