CVE-2025-34238: Advantech WebAccess/VPN < 1.1.5 Path Traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction()
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Advantech WebAccess/VPNto a version that resolves this vulnerability.Fixed in 1.1.5
Event History
Frequently Asked Questions
What is the severity of CVE-2025-34238?
CVE-2025-34238 is considered a critical vulnerability due to its potential for unauthorized access to sensitive files.
How do I fix CVE-2025-34238?
To fix CVE-2025-34238, upgrade Advantech WebAccess/VPN to version 1.1.5 or later.
Who is affected by CVE-2025-34238?
CVE-2025-34238 affects users of Advantech WebAccess/VPN versions prior to 1.1.5.
What type of vulnerability is CVE-2025-34238?
CVE-2025-34238 is an absolute path traversal vulnerability.
What can attackers do with CVE-2025-34238?
Attackers can exploit CVE-2025-34238 to read arbitrary files on the server as an authenticated network administrator.