{"id":76027,"date":"2025-09-20T19:13:36","date_gmt":"2025-09-20T19:13:36","guid":{"rendered":""},"modified":"2025-10-02T04:08:44","modified_gmt":"2025-10-02T10:08:44","slug":"cve-2025-8069-aws-client-vpn-openssl-configuration-file-arbitrarily-accessed-in-windows","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-8069-aws-client-vpn-openssl-configuration-file-arbitrarily-accessed-in-windows\/","title":{"rendered":"<strong>CVE-2025-8069: AWS Client VPN OpenSSL Configuration File Arbitrarily Accessed in Windows<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-8069 is a significant cybersecurity vulnerability affecting the AWS Client VPN client installation process on Windows devices. Specifically, this vulnerability arises due to the install process referencing a directory location to fetch the OpenSSL configuration file, which could potentially be manipulated by non-admin users. This issue is particularly noteworthy due to its potential to allow arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0074-critical-remote-code-execution-vulnerability-in-sdp-discovery\/\"  data-wpil-monitor-id=\"83663\">code execution<\/a> with root-level privileges if an admin user initiates the client installation process. Importantly, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36901-critical-wlan-vulnerability-in-android-affecting-google-pixel-devices\/\"  data-wpil-monitor-id=\"87443\">vulnerability does not affect<\/a> Linux or Mac devices, but Windows users should be aware of the potential risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-8069<br \/>\nSeverity: High (CVSS: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84308\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-310857087\" 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>AWS Client VPN | Prior to version 5.2.2<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of the AWS Client VPN client installation process on Windows devices. During the installation, the process references the C:usrlocalwindows-x86_64-openssl-localbuildssl directory to fetch the OpenSSL <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55747-configuration-file-exposure-in-xwiki-platform\/\"  data-wpil-monitor-id=\"87404\">configuration file<\/a>. A non-admin user with access to the system could replace the configuration file with one that contains <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0075-arbitrary-code-execution-vulnerability-in-sdp-server\/\"  data-wpil-monitor-id=\"84009\">arbitrary code<\/a>. If an admin user starts the installation process thereafter, the arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22403-remote-code-execution-vulnerability-in-sdp-discovery-cc\/\"  data-wpil-monitor-id=\"83937\">code in the configuration file will execute<\/a> with root-level privileges, potentially leading to a complete system compromise.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3544417194\" 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>This is a conceptual example of how the vulnerability might be exploited. Here, a non-admin user places <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55454-authenticated-arbitrary-file-upload-vulnerability-in-dootask-v1-0-51\/\"  data-wpil-monitor-id=\"84456\">arbitrary code into the OpenSSL configuration file<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">echo &quot;arbitrary code&quot; &gt; C:\\usr\\local\\windows-x86_64-openssl-localbuild\\ssl\\openssl.cnf<\/code><\/pre>\n<p>Then, when an admin user starts the AWS Client VPN client installation process, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52353-arbitrary-code-execution-vulnerability-in-badaso-cms-2-9-11\/\"  data-wpil-monitor-id=\"83989\">arbitrary code executes<\/a> with root-level privileges:<\/p>\n<pre><code class=\"\" data-line=\"\">.\\AWSClientVPN.exe install<\/code><\/pre>\n<p>This could lead to a variety of outcomes, including <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85691\">system compromise<\/a> and data leakage. To mitigate this vulnerability, we recommend applying the vendor patch or using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. Furthermore, no new installations of AWS Client VPN on Windows should be performed prior to version 5.2.2.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-8069 is a significant cybersecurity vulnerability affecting the AWS Client VPN client installation process on Windows devices. Specifically, this vulnerability arises due to the install process referencing a directory location to fetch the OpenSSL configuration file, which could potentially be manipulated by non-admin users. This issue is particularly noteworthy due to its potential to [&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":[88,82,99],"product":[100],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-76027","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","vendor-microsoft","vendor-openssl","product-openssl-libssl","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76027","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=76027"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76027\/revisions"}],"predecessor-version":[{"id":80276,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/76027\/revisions\/80276"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=76027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=76027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=76027"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=76027"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=76027"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=76027"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=76027"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=76027"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=76027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}