{"id":76081,"date":"2025-09-23T02:32:20","date_gmt":"2025-09-23T02:32:20","guid":{"rendered":""},"modified":"2025-10-10T05:20:44","modified_gmt":"2025-10-10T11:20:44","slug":"cve-2025-55109-authentication-bypass-vulnerability-in-control-m-agent","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55109-authentication-bypass-vulnerability-in-control-m-agent\/","title":{"rendered":"<strong>CVE-2025-55109: Authentication Bypass Vulnerability in Control-M\/Agent<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>This blog post examines CVE-2025-55109, a critical authentication bypass vulnerability in the out-of-support Control-M\/Agent versions 9.0.18 to 9.0.20 and potentially earlier unsupported versions. This vulnerability presents a significant risk to organizations that use this software, as it allows an attacker with access to a signed third-party or demo certificate for client authentication to bypass the need for a certificate signed by the certificate authority of the organization during authentication on the Control-M\/Agent. This can potentially lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7051-unauthorized-access-and-manipulation-of-syslog-configuration-in-n-central\/\"  data-wpil-monitor-id=\"84578\">unauthorized access<\/a>, system compromise, or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-55109<br \/>\nSeverity: Critical (CVSS: 9.0)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9791-critical-vulnerability-in-tenda-ac20-16-03-08-05-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84987\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-4225002035\" 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>Control-M\/Agent | 9.0.18 to 9.0.20<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43343-critical-memory-handling-vulnerability-in-multiple-apple-operating-systems\/\"  data-wpil-monitor-id=\"89557\">vulnerability lies in the way the Control-M\/Agent handles<\/a> certificates for client authentication. The software contains hardcoded certificates which are only trusted as fallback if an empty kdb keystore is used. If a PKCS#12 keystore is used, these certificates are never trusted. However, all of these certificates are now expired.<br \/>\nFurthermore, the Control-M\/Agent default kdb and PKCS#12 keystores contain trusted third-party certificates (external recognized CAs and default self-signed demo certificates) which are trusted for client authentication. An attacker can exploit this vulnerability by presenting a signed third-party or demo certificate to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55454-authenticated-arbitrary-file-upload-vulnerability-in-dootask-v1-0-51\/\"  data-wpil-monitor-id=\"84443\">bypass<\/a> the need for a certificate signed by the certificate authority of the organization during authentication on the Control-M\/Agent.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3200467893\" 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>The following is a conceptual example of how the vulnerability might be exploited. It is a simplified version of an authentication request where a malicious actor uses a signed third-party or demo certificate instead of a certificate signed by the organization&#8217;s certificate authority.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/ControlM\/AgentAuthentication HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n&quot;ClientCertificate&quot;: &quot;SignedThirdPartyOrDemoCertificate&quot;,\n&quot;AuthenticationPayload&quot;: &quot;...&quot;\n}<\/code><\/pre>\n<p>In this example, `SignedThirdPartyOrDemoCertificate` represents the signed third-party or demo certificate used by the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-50641-authentication-bypass-vulnerability-in-pandoranext-tokenstool\/\"  data-wpil-monitor-id=\"84801\">bypass authentication<\/a>, and `AuthenticationPayload` is a placeholder for the actual authentication payload.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview This blog post examines CVE-2025-55109, a critical authentication bypass vulnerability in the out-of-support Control-M\/Agent versions 9.0.18 to 9.0.20 and potentially earlier unsupported versions. This vulnerability presents a significant risk to organizations that use this software, as it allows an attacker with access to a signed third-party or demo certificate for client authentication to bypass [&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":[],"product":[],"attack_vector":[75],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-76081","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-authentication-bypass"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76081","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=76081"}],"version-history":[{"count":5,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76081\/revisions"}],"predecessor-version":[{"id":82403,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76081\/revisions\/82403"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=76081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=76081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=76081"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=76081"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=76081"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=76081"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=76081"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=76081"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=76081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}