Detect Gladinet CentreStack/Triofox Unauthorized File/Directory Access (CVE-2025-11371) in IBM QRadar
Detects exploitation of CVE-2025-11371, a CWE-552 vulnerability in Gladinet CentreStack and Triofox where files or directories are accessible to external parties without proper authorization. This CISA KEV-listed vulnerability allows unauthenticated or unauthorized actors to access sensitive files and directories exposed by the affected file-sharing platform.
MITRE ATT&CK
- Tactic
- Collection Exfiltration
QRadar Detection Query
SELECT sourceip, destinationip, destinationport, URL, "HTTP Method", "HTTP Response Code", "HTTP User Agent", QIDNAME(qid) AS EventName, starttime, endtime
FROM events
WHERE LOGSOURCETYPENAME(devicetype) IN ('Microsoft IIS', 'Apache HTTP Server', 'F5 BIG-IP')
AND ("HTTP Response Code" IN ('200', '206', '301', '302'))
AND (
URL MATCHES '(?i)/(storage|files|share|download|content)/'
OR URL MATCHES '(?i)(\.\./|%2e%2e%2f|%252e%252e)'
OR URL MATCHES '(?i)/(web\.config|appsettings\.json|\.ssh|etc/passwd|boot\.ini)'
)
AND NOT INCIDR(sourceip, '10.0.0.0/8')
AND NOT INCIDR(sourceip, '172.16.0.0/12')
AND NOT INCIDR(sourceip, '192.168.0.0/16')
LAST 24 HOURS
ORDER BY starttime DESCQRadar AQL query detecting external access to file storage endpoints and potential path traversal attempts against Gladinet CentreStack or Triofox web servers.
Data Sources
Required Tables
False Positives & Tuning
- Remote employees accessing corporate files through the platform from home IPs
- Vendor-managed integrations performing scheduled file synchronization
- Security assessment tools during approved penetration testing windows
- Cloud storage backup agents accessing file endpoints from non-RFC1918 addresses
Other platforms for CVE-2025-11371
Testing Methodology
Validate this detection against 3 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Unauthenticated File Enumeration via CentreStack Storage Endpoint
Expected signal: IIS access logs will show HTTP GET requests to /storage/, /files/, /share/ etc. from the test IP with no authentication headers. Responses of 200/206 indicate the vulnerability is present.
- Test 2Path Traversal Attempt Against CentreStack File Server
Expected signal: Web server logs will contain requests with URL-encoded traversal sequences. Windows Security Event Log Event ID 4663 may fire if file auditing is enabled and a real file is accessed.
- Test 3Bulk File Download Simulation from External IP
Expected signal: IIS logs will show high-volume sequential GET requests from a single external IP with large response sizes (sc-bytes). Network flow data will show sustained outbound data transfer to the test IP.
Unlock Pro Content
Get the full detection package for CVE-2025-11371 including response playbook, investigation guide, and atomic red team tests.