Detections
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Amazon Linux AMI : openvpn (ALAS-2021-1531)

high Nessus Plugin ID 153165

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of openvpn installed on the remote host is prior to 2.4.11-1.48. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1531 advisory.

 - OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. (CVE-2020-15078)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update openvpn' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2021-1531.html

https://access.redhat.com/security/cve/CVE-2020-15078

Plugin Details

Severity: High

ID: 153165

File Name: ala_ALAS-2021-1531.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/9/2021

Updated: 9/9/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-15078

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openvpn-debuginfo, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:openvpn, p-cpe:/a:amazon:linux:openvpn-devel

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/2/2021

Vulnerability Publication Date: 4/26/2021

Reference Information

CVE: CVE-2020-15078

ALAS: 2021-1531