PT-2021-22009 · Openvpn · Openvpn Access Server

Published 2021-09-23 · Updated 2021-09-29 · CVE-2021-3824

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: OpenVPN Access Server versions 2.9.0 through 2.9.4

Description: The issue allows remote attackers to inject arbitrary web script or HTML via the web login page URL.

Recommendations: For OpenVPN Access Server versions 2.9.0 through 2.9.4, consider restricting access to the web login page until a fix is available. As a temporary workaround, avoid using the web login page URL to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-84

CWE-79

Related Identifiers

CVE-2021-3824

Affected Products

Openvpn Access Server

References · 4

• https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-9-5 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3824 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3824 · Security Note
• https://t.me/cibsecurity/29318 · Telegram Post