CVE Vulnerabilities

CVE-2021-27406

Externally Controlled Reference to a Resource in Another Sphere

Published: Oct 14, 2022 | Modified: Oct 18, 2022
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

An attacker can take leverage on PerFact OpenVPN-Client versions 1.4.1.0 and prior to send the config command from any application running on the local host machine to force the back-end server into initializing a new open-VPN instance with arbitrary open-VPN configuration. This could result in the attacker achieving execution with privileges of a SYSTEM user.

Weakness

The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

Affected Software

Name Vendor Start Version End Version
Openvpn-client Perfact * 1.4.1.0 (including)

References