{"id":64302,"date":"2025-08-25T03:19:58","date_gmt":"2025-08-25T03:19:58","guid":{"rendered":""},"modified":"2025-11-02T02:09:47","modified_gmt":"2025-11-02T08:09:47","slug":"cve-2024-26009-authentication-bypass-vulnerability-in-fortinet-products","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-26009-authentication-bypass-vulnerability-in-fortinet-products\/","title":{"rendered":"<strong>CVE-2024-26009: Authentication Bypass Vulnerability in Fortinet Products<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A severe vulnerability, identified as CVE-2024-26009, has been discovered in a range of Fortinet products, including FortiOS, FortiProxy, and FortiPAM. This vulnerability, classified as an authentication bypass using an alternate path or channel (CWE-288), has the potential to allow unauthorized attackers to take control of a managed device. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43275-critical-race-condition-vulnerability-in-macos\/\"  data-wpil-monitor-id=\"71647\">vulnerability is especially critical<\/a> as it enables an attacker to bypass authentication and seize control of a system without needing any user interaction, potentially leading to system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-26009<br \/>\nSeverity: High (CVSS: 8.1)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: System compromise, Potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53495-unauthorized-access-data-leakage-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72603\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2379856535\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>Fortinet FortiOS | 6.4.0 through 6.4.15, before 6.2.16<br \/>\nFortinet FortiProxy | 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, before 7.0.15<br \/>\nFortinet FortiPAM | Before 1.2.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of a vulnerability in the Fortinet products where an attacker can use specially crafted FortiGate-FortiManager protocol (FGFM) requests to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44957-ruckus-smartzone-authentication-bypass-vulnerability\/\"  data-wpil-monitor-id=\"74029\">bypass the authentication<\/a> process. The exploit&#8217;s success hinges on the attacker knowing the FortiManager&#8217;s serial number, enabling them to take control of a device managed by the FortiManager.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-145918199\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Below is a conceptual example of how the vulnerability might be exploited. This example represents an FGFM request, where &#8220;malicious_payload&#8221; is a specially crafted request:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/fgfm\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;FortiManager_serial_number&quot;: &quot;known_serial_number&quot;, &quot;malicious_payload&quot;: &quot;...&quot; }<\/code><\/pre>\n<p>This is purely a conceptual representation of an attack and does not represent an actual exploit code. The actual malicious payload would be specifically crafted to exploit the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27046-critical-memory-corruption-vulnerability-threatening-system-integrity\/\"  data-wpil-monitor-id=\"75064\">vulnerability in the target system<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The recommended mitigation for this vulnerability is to apply the vendor-supplied patch. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. It is also recommended to avoid exposing Fortinet devices to the internet and to restrict <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37103-hard-coded-login-credentials-vulnerability-in-hpe-networking-instant-on-access-points\/\"  data-wpil-monitor-id=\"92144\">network access<\/a> to them.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A severe vulnerability, identified as CVE-2024-26009, has been discovered in a range of Fortinet products, including FortiOS, FortiProxy, and FortiPAM. This vulnerability, classified as an authentication bypass using an alternate path or channel (CWE-288), has the potential to allow unauthorized attackers to take control of a managed device. This vulnerability is especially critical as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[105],"product":[],"attack_vector":[75],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64302","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-fortinet","attack_vector-authentication-bypass"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=64302"}],"version-history":[{"count":5,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64302\/revisions"}],"predecessor-version":[{"id":85355,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64302\/revisions\/85355"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64302"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64302"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64302"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64302"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64302"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64302"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}