{"id":44653,"date":"2025-05-26T08:43:03","date_gmt":"2025-05-26T08:43:03","guid":{"rendered":""},"modified":"2025-08-07T17:51:32","modified_gmt":"2025-08-07T23:51:32","slug":"cve-2024-21315-a-critical-elevation-of-privilege-vulnerability-in-microsoft-defender-for-endpoint-protection","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-21315-a-critical-elevation-of-privilege-vulnerability-in-microsoft-defender-for-endpoint-protection\/","title":{"rendered":"<strong>CVE-2024-21315: A Critical Elevation of Privilege Vulnerability in Microsoft Defender for Endpoint Protection<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the dynamic landscape of cybersecurity, it is paramount to keep our systems secure against potential threats. One such threat that we need to address this year is a significant vulnerability that has been identified in Microsoft Defender for Endpoint Protection. The vulnerability, identified as CVE-2024-21315, poses a substantial risk to system <a href=\"https:\/\/www.ameeba.com\/blog\/ai-data-security-guidance-a-crucial-move-by-agencies-in-cybersecurity\/\"  data-wpil-monitor-id=\"52362\">security and data<\/a> integrity. It affects a broad range of users, from individuals to corporates, using Microsoft&#8217;s <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5243-critical-security-vulnerability-in-smg-software-information-portal\/\"  data-wpil-monitor-id=\"67984\">security software<\/a>. The severity and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-22190-critical-gitpython-vulnerability-exposes-windows-systems-to-potential-compromise\/\"  data-wpil-monitor-id=\"51346\">potential impact of this vulnerability<\/a> underscore why it matters and why immediate action is required.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-21315<br \/>\nSeverity: High (CVSS score: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4759-incorrect-behavior-order-in-lockfile-lint-api-package-potentially-leading-to-system-compromise\/\"  data-wpil-monitor-id=\"51347\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3629583484\" 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>Microsoft Defender for Endpoint Protection | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48481-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/\"  data-wpil-monitor-id=\"57192\">versions prior<\/a> to the vendor patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by taking advantage of a flaw in Microsoft Defender for Endpoint Protection that allows a malicious user to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20003-escalation-of-privilege-vulnerability-in-intel-r-graphics-driver-software\/\"  data-wpil-monitor-id=\"50288\">escalate their privilege<\/a> level. This is achieved by manipulating system processes that rely on faulty or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45471-insecure-permissions-vulnerability-in-measure-cold-start-v1-4-1\/\"  data-wpil-monitor-id=\"52994\">insecure permissions<\/a>. Once the attacker has <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20018-privilege-escalation-vulnerability-in-intel-graphics-drivers\/\"  data-wpil-monitor-id=\"50294\">escalated their privilege<\/a> level, they can then execute commands or deploy malware with the same level of access as a system administrator. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4809-critical-vulnerability-in-tenda-ac7-router-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"50599\">lead to the compromise of the entire system<\/a>, resulting in potential data leakage or further system vulnerabilities.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1625069494\" 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>Below is a conceptual example of how this vulnerability might be exploited. This example is purely hypothetical and is provided to help <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0072-local-non-privileged-user-exploit-in-arm-ltd-gpu-kernel-drivers\/\"  data-wpil-monitor-id=\"58231\">users understand the nature of the exploit<\/a>.<\/p>\n<pre><code class=\"\" data-line=\"\">#Gain low-level access to the system\n$ ssh username@target.system.com\n#Locate the process with insecure permissions\n$ ps aux | grep &quot;defender&quot;\n#Exploit the vulnerability to escalate privileges\n$ .\/exploit CVE-2024-21315\n#Execute command as a system administrator\n$ sudo command<\/code><\/pre>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the vendor-provided patch as soon as possible. This patch addresses the insecure permissions issue and prevents <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32310-privilege-escalation-vulnerability-in-thememove-quickcal-due-to-csrf\/\"  data-wpil-monitor-id=\"50465\">privilege escalation<\/a>. In the interim, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"67985\">users may consider using a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and control network traffic, thereby reducing the risk of a potential exploit. However, these are temporary measures and can&#8217;t replace the importance of applying the vendor patch.<br \/>\nThe cybersecurity <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47916-critical-remote-code-execution-vulnerability-in-invision-community-5-0-0\/\"  data-wpil-monitor-id=\"50393\">community is continually working to identify and mitigate such vulnerabilities<\/a>. It&#8217;s imperative for all <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48340-critical-csrf-vulnerability-in-danny-vink-user-profile-meta-manager-allows-privilege-escalation\/\"  data-wpil-monitor-id=\"52859\">users to stay informed and take swift action when vulnerabilities<\/a> like CVE-2024-21315 are identified, ensuring their systems remain secure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the dynamic landscape of cybersecurity, it is paramount to keep our systems secure against potential threats. One such threat that we need to address this year is a significant vulnerability that has been identified in Microsoft Defender for Endpoint Protection. The vulnerability, identified as CVE-2024-21315, poses a substantial risk to system security and [&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":[82],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-44653","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44653","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=44653"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44653\/revisions"}],"predecessor-version":[{"id":61533,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/44653\/revisions\/61533"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=44653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=44653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=44653"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=44653"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=44653"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=44653"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=44653"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=44653"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=44653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}