{"id":56658,"date":"2025-07-02T21:07:08","date_gmt":"2025-07-02T21:07:08","guid":{"rendered":""},"modified":"2025-09-08T17:19:06","modified_gmt":"2025-09-08T23:19:06","slug":"cve-2025-49603-incorrect-access-control-vulnerability-in-northern-tech-mender-server","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49603-incorrect-access-control-vulnerability-in-northern-tech-mender-server\/","title":{"rendered":"<strong>CVE-2025-49603: Incorrect Access Control Vulnerability in Northern.tech Mender Server<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity realm is an ever-evolving space with new threats emerging regularly. One of these recently unearthed threats is the CVE-2025-49603 vulnerability, which affects the Northern.tech Mender Server versions before 3.7.11 and 4.x before 4.0.1. This vulnerability arises from an incorrect access control flaw and poses a serious threat, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4981-critical-file-extraction-vulnerability-in-mattermost-leading-to-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"63108\">potentially leading<\/a> to system compromise and data leakage. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24761-severe-php-local-file-inclusion-vulnerability-in-snstheme-dsk\/\"  data-wpil-monitor-id=\"63163\">severity of this vulnerability<\/a> underscores the criticality of maintaining a robust and up-to-date cybersecurity framework for all systems and applications.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-49603<br \/>\nSeverity: Critical (9.1 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: High<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5867-critical-vulnerability-in-rt-thread-5-1-0-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63918\">System compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-292541928\" 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>Northern.tech Mender Server | versions before 3.7.11<br \/>\nNorthern.tech Mender Server | 4.x versions before 4.0.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-49603 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43586-adobe-commerce-improper-access-control-vulnerability-leading-to-privilege-escalation\/\"  data-wpil-monitor-id=\"63131\">vulnerability exploits an incorrect access control<\/a> flaw in the Northern.tech Mender Server. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26521-apache-cloudstack-user-account-vulnerability-in-kubernetes-cluster-creation\/\"  data-wpil-monitor-id=\"63125\">vulnerability allows unauthorized users<\/a> to gain privileged access to the system, bypassing the access control mechanisms set in place. By exploiting this flaw, an attacker could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32878-critical-vulnerability-in-coros-pace-3-devices-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63330\">potentially compromise the system<\/a>, alter its functionality, or gain access to sensitive data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2186060539\" 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>Consider the following conceptual example that demonstrates how a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8714-critical-postgresql-vulnerability-allowing-malicious-code-injection-by-superusers\/\"  data-wpil-monitor-id=\"80731\">malicious actor might exploit this vulnerability<\/a>. This example is presented in pseudocode and illustrates a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48921-cross-site-request-forgery-vulnerability-in-drupal-open-social\/\"  data-wpil-monitor-id=\"65031\">request sent to a vulnerable<\/a> endpoint:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;malicious_payload&quot;: &quot;Exploit code that bypasses access control mechanisms&quot; }<\/code><\/pre>\n<p>In this scenario, the attacker sends a malicious payload that exploits the incorrect access control flaw, allowing them to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22236-minion-event-bus-authorization-bypass-vulnerability-posing-serious-security-threats\/\"  data-wpil-monitor-id=\"63329\">bypass the system&#8217;s authorization<\/a> mechanisms and gain privileged access.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The mitigation for this vulnerability involves applying the vendor patch. If the patch cannot be applied immediately, a temporary mitigation would be to use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20217-denial-of-service-vulnerability-in-snort-3-detection-engine-of-cisco-secure-firewall-threat-defense-software\/\"  data-wpil-monitor-id=\"77103\">detect and prevent exploitation of this vulnerability<\/a>. However, these are merely temporary fixes, and applying the vendor patch should be prioritized to fully resolve the vulnerability.<br \/>\nAs the cyber landscape continues to evolve, so too must our defenses. It&#8217;s <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4200-critical-local-file-inclusion-vulnerability-in-zagg-electronics-accessories-woocommerce-wordpress-theme\/\"  data-wpil-monitor-id=\"63174\">critical that organizations stay informed about new vulnerabilities<\/a>, such as CVE-2025-49603, and take swift action to mitigate their potential impact.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity realm is an ever-evolving space with new threats emerging regularly. One of these recently unearthed threats is the CVE-2025-49603 vulnerability, which affects the Northern.tech Mender Server versions before 3.7.11 and 4.x before 4.0.1. This vulnerability arises from an incorrect access control flaw and poses a serious threat, potentially leading to system compromise [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-56658","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56658","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=56658"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56658\/revisions"}],"predecessor-version":[{"id":73152,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56658\/revisions\/73152"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=56658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=56658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=56658"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=56658"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=56658"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=56658"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=56658"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=56658"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=56658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}