PT-2025-45355 · Advantech · Webaccess/Vpn

Alex Williams · Published 2025-10-31 · Updated 2025-11-07 · CVE-2025-34238

Positive Technologies (AI Summary)

CVSS v2.0

8.5

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:N

Name of the Vulnerable Software and Affected Versions Advantech WebAccess/VPN versions prior to 1.1.5

Description The software contains a path traversal flaw in the AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() function. An authenticated network administrator can exploit this to read and return the contents of arbitrary files accessible to the web user (www-data). The issue allows traversal via an absolute path.

Recommendations Update to version 1.1.5 or later.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

BDU:2025-13986

CVE-2025-34238

Affected Products

Webaccess/Vpn

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2025-34238 · Security Note
• https://bdu.fstec.ru/vul/2025-13986 · Security Note
• https://osv.dev/vulnerability/CVE-2025-34238 · Vendor Advisory
• https://t.me/CVEtracker/36707 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1986654592382173489 · Twitter Post
• https://icr.advantech.com/support/router-models/download/511/sa-2025-01-vpn-portal-2025-11-06.pdf · Patch, Vendor Advisory
• https://icr.advantech.com/download/software · Note
• https://vulncheck.com/advisories/advantech-webaccess-vpn-path-traversal-via-ajaxstandalonevpnclientscontroller · Note