{"id":21381,"date":"2025-04-11T08:51:53","date_gmt":"2025-04-11T08:51:53","guid":{"rendered":""},"modified":"2025-05-17T23:21:08","modified_gmt":"2025-05-17T23:21:08","slug":"cve-2024-0542-critical-buffer-overflow-vulnerability-in-tenda-w9-1-0-0-7-4456","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-0542-critical-buffer-overflow-vulnerability-in-tenda-w9-1-0-0-7-4456\/","title":{"rendered":"<strong>CVE-2024-0542: Critical Buffer Overflow Vulnerability in Tenda W9 1.0.0.7(4456)<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is riddled with vulnerabilities that, if left unaddressed, could result in significant damage to systems and loss of sensitive data. One such vulnerability is CVE-2024-0542, found in Tenda W9 1.0.0.7(4456). This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-47890-exposing-the-critical-vulnerability-in-network-security-protocols\/\"  data-wpil-monitor-id=\"24922\">critical vulnerability<\/a> affects the formWifiMacFilterGet function of the httpd component, leading to a stack-based buffer overflow. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-52030-critical-remote-code-execution-vulnerability-in-totolink-a3700r\/\"  data-wpil-monitor-id=\"25061\">vulnerability is particularly concerning as it can be exploited remotely<\/a>, and the exploit has been made public. The vendor of the affected product was <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30353-critical-information-disclosure-vulnerability-in-directus\/\"  data-wpil-monitor-id=\"31491\">informed of this vulnerability<\/a> but has not responded, making swift action by users and system administrators crucial.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-0542<br \/>\nSeverity: Critical (CVSS: 8.8)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0573-critical-vulnerability-in-totolink-lr1200gb-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"29040\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-886756725\" 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>Tenda | W9 1.0.0.7(4456)<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by manipulating the &#8216;index&#8217; argument in the &#8216;formWifiMacFilterGet&#8217; function of the httpd component in Tenda W9 1.0.0.7(4456). This manipulation triggers a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-6845-exploring-the-intricate-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"24998\">buffer overflow<\/a>. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-6528-buffer-overflow-vulnerability-in-abc-data-handler\/\"  data-wpil-monitor-id=\"24481\">buffer overflow occurs when more data<\/a> is put into a buffer than it can hold, causing the excess data to overflow into adjacent storage. This overflow can overwrite and corrupt valid data, causing undefined behavior, crashes, and in this case, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0576-critical-vulnerability-in-totolink-lr1200gb-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"29370\">potential system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2972843273\" 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>An attacker may exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-6532-cross-site-request-forgery-vulnerability-in-wp-blogs-planetarium-wordpress-plugin-vulnerability-summary\/\"  data-wpil-monitor-id=\"25039\">vulnerability by sending a specially crafted HTTP request<\/a> to the affected device, such as the following conceptual example:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/formWifiMacFilterGet HTTP\/1.1\nHost: target_device_IP\nContent-Type: application\/json\n{ &quot;index&quot;: &quot;A&quot;*5000 }  \/\/ overwhelming the buffer with too much data<\/code><\/pre>\n<p>In this example, the &#8216;index&#8217; argument is filled with a large amount of data, triggering a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-52072-dangerous-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"25001\">buffer overflow<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users and administrators are strongly recommended to apply the vendor patch as soon as it becomes available to resolve this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29266-critical-buffer-overflow-vulnerability-in-unraid-s-webgui\/\"  data-wpil-monitor-id=\"25049\">critical vulnerability<\/a>. If the vendor does not provide a patch, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. However, these should not be considered long-term solutions, as they do not <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4335-privilege-escalation-vulnerability-in-woocommerce-multiple-addresses-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"43762\">address the root cause of the vulnerability<\/a>.<br \/>\nNote that while mitigations can reduce the <a href=\"https:\/\/www.ameeba.com\/blog\/fortinet-s-fortigate-vulnerability-ssl-vpn-symlink-exploit-puts-user-access-at-risk-post-patching\/\"  data-wpil-monitor-id=\"31492\">risk of exploitation<\/a>, they are not a substitute for patching the affected product. Regular patching and updating of all software is an <a href=\"https:\/\/www.ameeba.com\/blog\/tailoring-cybersecurity-strategies-according-to-truck-fleet-sizes-essential-practices-and-vulnerabilities\/\"  data-wpil-monitor-id=\"25301\">essential part of maintaining cybersecurity<\/a> hygiene.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is riddled with vulnerabilities that, if left unaddressed, could result in significant damage to systems and loss of sensitive data. One such vulnerability is CVE-2024-0542, found in Tenda W9 1.0.0.7(4456). This critical vulnerability affects the formWifiMacFilterGet function of the httpd component, leading to a stack-based buffer overflow. This vulnerability is particularly [&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":[103],"product":[104],"attack_vector":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-21381","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","product-apache-httpd","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/21381","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=21381"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/21381\/revisions"}],"predecessor-version":[{"id":39148,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/21381\/revisions\/39148"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=21381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=21381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=21381"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=21381"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=21381"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=21381"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=21381"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=21381"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=21381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}