{"id":86245,"date":"2026-01-09T20:22:47","date_gmt":"2026-01-09T20:22:47","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T06:00:00","slug":"cve-2025-27580-predictable-token-generation-vulnerability-in-nih-brics","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27580-predictable-token-generation-vulnerability-in-nih-brics\/","title":{"rendered":"<strong>CVE-2025-27580: Predictable Token Generation Vulnerability in NIH BRICS<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A newly discovered vulnerability, identified as CVE-2025-27580, affects the Biomedical Research Informatics Computing System (BRICS) up to version 14.0.0-67. This vulnerability is significant due to its potential for allowing unauthenticated users with a Common Access Card (CAC) to escalate privileges and compromise accounts, including administrative accounts. As a result, this vulnerability can lead to potential system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-27580<br \/>\nSeverity: High (7.5 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: Unauthorized access and potential compromise of system data<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2202698455\" 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>NIH BRICS | Up to 14.0.0-67<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability arises from the BRICS system&#8217;s predictable token generation, which depends on username, time, and a fixed string. An attacker with knowledge of this could predict these tokens and use them to escalate privileges without proper authentication. They could then access and potentially compromise any account, including those with administrative privileges.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3310285780\" 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 the vulnerability might be exploited. This pseudocode illustrates the potential sequence of actions an attacker might perform:<\/p>\n<pre><code class=\"\" data-line=\"\"># Pseudocode for exploiting CVE-2025-27580\nimport time\ndef generate_token(username, timestamp, fixed_string):\nreturn hash(username + timestamp + fixed_string)\nusername = &quot;admin&quot;\ncurrent_time = str(time.time())\nfixed_string = &quot;7Dl9#dj-&quot;\nmalicious_token = generate_token(username, current_time, fixed_string)\n# Use the malicious token to authenticate as the admin\nsend_authentication_request(username, malicious_token)<\/code><\/pre>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The recommended mitigation is to apply the vendor&#8217;s patch once available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation by detecting and preventing potential exploits of this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A newly discovered vulnerability, identified as CVE-2025-27580, affects the Biomedical Research Informatics Computing System (BRICS) up to version 14.0.0-67. This vulnerability is significant due to its potential for allowing unauthenticated users with a Common Access Card (CAC) to escalate privileges and compromise accounts, including administrative accounts. As a result, this vulnerability can lead 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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86245","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86245","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=86245"}],"version-history":[{"count":0,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86245\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=86245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=86245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=86245"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=86245"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=86245"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=86245"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=86245"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=86245"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=86245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}