Detections
Analytics

Amazon Linux 2 : cloud-init (ALAS-2021-1595)

medium Nessus Plugin ID 146630

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of cloud-init installed on the remote host is prior to 19.3-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1595 advisory.

 - A security feature bypass exists in Azure SSH Keypairs, due to a change in the provisioning logic for some Linux images that use cloud-init, aka 'Azure SSH Keypairs Security Feature Bypass Vulnerability'.
 (CVE-2019-0816)

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 cloud-init' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1595.html

https://access.redhat.com/security/cve/CVE-2019-0816

Plugin Details

Severity: Medium

ID: 146630

File Name: al2_ALAS-2021-1595.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/19/2021

Updated: 2/19/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.4

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

CVSS Score Source: CVE-2019-0816

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:cloud-init, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/8/2021

Vulnerability Publication Date: 3/12/2019

Reference Information

CVE: CVE-2019-0816

BID: 107352

ALAS: 2021-1595