{"id":2955,"date":"2026-09-04T04:59:20","date_gmt":"2026-09-03T20:59:20","guid":{"rendered":"https:\/\/www.54iter.cn\/?p=2955"},"modified":"2026-09-04T04:59:20","modified_gmt":"2026-09-03T20:59:20","slug":"cve-2023-54391","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2023-54391","title":{"rendered":"CVE-2023-54391 [CRITICAL] &#8211; Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnera"},"content":{"rendered":"<p>Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any existing enabled user without a configured second factor by supplying an arbitrary tfa-challenge value in the API login endpoint. Attackers can send a POST request to the access ticket API endpoint with any value in the tfa-challenge parameter to completely skip password verification, gaining unauthorized access including to the root@pam account. All affected releases are end of life.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any exis<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-2955","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/2955","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}