CVE-2021-27406

Published Oct 14, 2022

Last updated 2 years ago

Overview

Description: 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.
Source: ics-cert@hq.dhs.gov
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 8.8
Impact score: 5.9
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: HIGH

Weaknesses

nvd@nist.gov: CWE-610
ics-cert@hq.dhs.gov: CWE-15

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:perfact:openvpn-client:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "E4F40462-0D14-4ED0-94C2-B4C23A0A2913",
            "versionEndIncluding": "1.4.1.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References