Detections
Analytics

OpenVPN 2.3.x < 2.3.17 & 2.4.x < 2.4.3 Multiple Denial of Service Vulnerabilites (Windows)

high Nessus Plugin ID 125262

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Synopsis

An application on the remote Windows host is affected by multiple vulnerabilities.

Description

According to its self-reported version number, the version of OpenVPN installed on the remote Windows host is 2.3.x prior to 2.3.17 or 2.4.x prior to 2.4.3. It is, therefore, affected by multiple denial of service (DoS) vulnerabilities due to invalid input validation. An unauthenticated, remote attacker can exploit this issue, by sending malformed input, to cause the application to stop responding.

Solution

Upgrade to OpenVPN 2.3.17 / 2.4.3 or later.

See Also

http://www.nessus.org/u?af9c7e6f

Plugin Details

Severity: High

ID: 125262

File Name: openvpn_2_4_3.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 5/17/2019

Updated: 10/30/2019

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2017-7520

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:openvpn:openvpn

Required KB Items: installed_sw/OpenVPN Server

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2017

Vulnerability Publication Date: 6/21/2017

Reference Information

CVE: CVE-2017-7508, CVE-2017-7520, CVE-2017-7521, CVE-2017-7522

BID: 99230