Description
Advantech WebAccess/VPN versions prior to 1.1.5 contain an absolute path traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() that allows an authenticated network administrator to cause the application to read and return the contents of arbitrary files the web user (www-data) can access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Advantech | WebAccess/VPN | < 1.1.5 | 1.1.5 |
References
- https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf vendor-advisory patch
- https://www.vulncheck.com/advisories/advantech-webaccess-vpn-path-traversal-via-ajaxstandalonevpnclientscontroller third-party-advisory
- https://icr.advantech.com/download/software product