{"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":"-0001-11-30T00:00:00","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":"CVE-2025-27580: Predictable Token Generation Vulnerability in NIH BRICS<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

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

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-27580
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Unauthorized access and potential compromise of system data<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

NIH BRICS | Up to 14.0.0-67<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability arises from the BRICS system’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

Conceptual Example Code<\/strong><\/p>\n

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

# Pseudocode for exploiting CVE-2025-27580\nimport time\ndef generate_token(username, timestamp, fixed_string):\nreturn hash(username + timestamp + fixed_string)\nusername = \"admin\"\ncurrent_time = str(time.time())\nfixed_string = \"7Dl9#dj-\"\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
Mitigation<\/strong><\/p>\n
The recommended mitigation is to apply the vendor’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":"
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 […]<\/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,"_monsterinsights_skip_tracking":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":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t