{"id":49152,"date":"2025-06-05T18:29:19","date_gmt":"2025-06-05T18:29:19","guid":{"rendered":""},"modified":"2025-09-04T06:12:29","modified_gmt":"2025-09-04T12:12:29","slug":"cve-2025-4433-improper-access-control-leads-to-privilege-escalation-in-devolutions-server","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4433-improper-access-control-leads-to-privilege-escalation-in-devolutions-server\/","title":{"rendered":"<strong>CVE-2025-4433: Improper Access Control Leads to Privilege Escalation in Devolutions Server<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has identified a significant security flaw in Devolutions Server versions 2025.1.7.0 and earlier. This vulnerability, tagged as CVE-2025-4433, is a glaring example of improper access control within user group management, allowing potential privilege escalation by non-admin users. This flaw is particularly concerning as it affects a broad range of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5100-a-double-free-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"56727\">systems and can lead<\/a> to serious consequences like system compromise or data leakage if exploited.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32928-critical-deserialization-vulnerability-in-themegoods-altair\/\"  data-wpil-monitor-id=\"55064\">criticality of this vulnerability<\/a> is underscored by its CVSS Severity Score of 8.8, indicating a high level of risk. Organizations running affected versions of Devolutions <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23311-stack-overflow-vulnerability-in-nvidia-triton-inference-server-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78818\">Server must prioritize addressing this issue to prevent potential<\/a> security breaches.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-4433<br \/>\nSeverity: High (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31263-critical-memory-handling-vulnerability-could-lead-to-system-compromise-or-data-leakage-in-macos-sequoia-15-4\/\"  data-wpil-monitor-id=\"57043\">System compromise or data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1166119663\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>Devolutions Server | 2025.1.7.0 and earlier<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-4433 vulnerability arises from <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39357-sql-injection-vulnerability-in-mojoomla-hospital-management-system\/\"  data-wpil-monitor-id=\"55072\">improper access control within Devolutions<\/a> Server&#8217;s user group management feature. Specifically, a non-administrative user with both &#8220;User Management&#8221; and &#8220;User Group Management&#8221; permissions can exploit this flaw to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27998-privilege-escalation-vulnerability-in-valvesoftware-steam-client\/\"  data-wpil-monitor-id=\"55198\">escalate their privileges<\/a>. They can add themselves or other users to groups with administrative privileges, thereby gaining <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39350-unauthorized-access-vulnerability-in-rocket-apps-wproject\/\"  data-wpil-monitor-id=\"55636\">unauthorized access<\/a> to administrative functions and sensitive data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3022016127\" 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>Here is a conceptual example of how the vulnerability might be exploited. This pseudocode represents a malicious user adding themselves to an administrative group.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/api\/usergroup\/add HTTP\/1.1\nHost: devolutions-server.example.com\nContent-Type: application\/json\n{\n&quot;userID&quot;: &quot;malicious_user_id&quot;,\n&quot;groupID&quot;: &quot;admin_group_id&quot;\n}<\/code><\/pre>\n<p>This request would add the malicious user to the admin group, granting them administrative rights and enabling them to potentially compromise the system or leak <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48749-netwrix-directory-manager-s-sensitive-data-exposure-vulnerability\/\"  data-wpil-monitor-id=\"56726\">sensitive data<\/a>.<br \/>\nTo mitigate this vulnerability, it is highly recommended that organizations apply the vendor patch as soon as it becomes available. In the meantime, using Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has identified a significant security flaw in Devolutions Server versions 2025.1.7.0 and earlier. This vulnerability, tagged as CVE-2025-4433, is a glaring example of improper access control within user group management, allowing potential privilege escalation by non-admin users. This flaw is particularly concerning as it affects a broad [&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":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-49152","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49152","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=49152"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49152\/revisions"}],"predecessor-version":[{"id":71205,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49152\/revisions\/71205"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=49152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=49152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=49152"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=49152"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=49152"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=49152"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=49152"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=49152"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=49152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}