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)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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.

Plugin Details

Severity: Medium

ID: 146630

File Name: al2_ALAS-2021-1595.nasl

Version: 1.3

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 2/19/2021

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous 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: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:cloud-init

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

Detections

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