{"id":76055,"date":"2025-09-21T23:22:21","date_gmt":"2025-09-21T23:22:21","guid":{"rendered":""},"modified":"2025-10-28T12:32:41","modified_gmt":"2025-10-28T18:32:41","slug":"cve-2025-52361-local-privilege-escalation-vulnerability-in-ak-nord-usb-server-lxl-firmware","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52361-local-privilege-escalation-vulnerability-in-ak-nord-usb-server-lxl-firmware\/","title":{"rendered":"<strong>CVE-2025-52361: Local Privilege Escalation Vulnerability in AK-Nord USB-Server-LXL Firmware<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant security flaw in the AK-Nord USB-Server-LXL Firmware v0.0.16 Build 2023-03-13. This vulnerability, designated CVE-2025-52361, allows a low-privilege user to escalate their permissions to root level by exploiting insecure permissions in a specific script. This flaw is particularly concerning as it not only affects the integrity and security of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84317\">system<\/a> but also poses a potential risk for data leakage and total system compromise.<br \/>\nThe issue is of particular importance to system administrators and IT security personnel who handle systems running on the affected firmware, as it could allow malicious actors to gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7051-unauthorized-access-and-manipulation-of-syslog-configuration-in-n-central\/\"  data-wpil-monitor-id=\"84584\">unauthorized access<\/a> and control over the system. Prompt action is required to mitigate this security risk and ensure the ongoing security of the infrastructure.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-52361<br \/>\nSeverity: High (7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<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=\"84988\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3632074526\" 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>AK-Nord USB-Server-LXL Firmware | v0.0.16 Build 2023-03-13<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52287-deserialization-vulnerability-in-operamasks-sdk-elite-script-engine-v0-5-0\/\"  data-wpil-monitor-id=\"84024\">vulnerability lies within the insecure permissions of the \/etc\/init.d\/lighttpd script<\/a> in the AK-Nord USB-Server-LXL Firmware. A locally authenticated user with low-level privileges can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55573-cross-site-scripting-vulnerability-in-quantumnous-new-api-v-0-8-5-2\/\"  data-wpil-monitor-id=\"84029\">vulnerability by editing the script<\/a>. This modified script is then executed with root privileges during any interaction with the system or on every system boot, allowing the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52353-arbitrary-code-execution-vulnerability-in-badaso-cms-2-9-11\/\"  data-wpil-monitor-id=\"83988\">execute arbitrary<\/a> commands with escalated privileges.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2399272760\" 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 illustrates the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57771-arbitrary-command-execution-vulnerability-in-roo-code-ai\/\"  data-wpil-monitor-id=\"84847\">execution of a shell command<\/a> that modifies the \/etc\/init.d\/lighttpd script to include a malicious command:<\/p>\n<pre><code class=\"\" data-line=\"\">echo &quot;command_to_execute_with_root_privileges&quot; &gt;&gt; \/etc\/init.d\/lighttpd<\/code><\/pre>\n<p>This command appends a malicious command to the lighttpd script. When the system interacts with this script or during system boot, the appended command is executed with root privileges, leading to a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27216-privilege-escalation-in-uisp-application-due-to-incorrect-permission-assignment\/\"  data-wpil-monitor-id=\"84365\">privilege escalation<\/a> attack. This code is only intended to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30330-heap-based-buffer-overflow-vulnerability-in-illustrator-versions-29-3-28-7-5-and-earlier\/\"  data-wpil-monitor-id=\"91707\">illustrate the nature of the vulnerability<\/a> and should not be used for malicious purposes.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the latest vendor-provided patch. In the absence of a patch, temporary mitigation can be achieved by using Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant security flaw in the AK-Nord USB-Server-LXL Firmware v0.0.16 Build 2023-03-13. This vulnerability, designated CVE-2025-52361, allows a low-privilege user to escalate their permissions to root level by exploiting insecure permissions in a specific script. This flaw is particularly concerning as it not only [&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-76055","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\/76055","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=76055"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76055\/revisions"}],"predecessor-version":[{"id":84876,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76055\/revisions\/84876"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=76055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=76055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=76055"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=76055"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=76055"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=76055"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=76055"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=76055"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=76055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}