Amazon Linux AMI : busybox (ALAS-2022-1558)

high Nessus Plugin ID 156867

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Synopsis

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

Description

The version of busybox installed on the remote host is prior to 1.34.1-1.13. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1558 advisory.

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted shell command, leading to a denial of service. The highest threat from this vulnerability is to system availability.
(CVE-2021-42376)

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted awk pattern, leading to possible code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42378)

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted awk pattern in the next_input_file function, leading to possible code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42379)

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted awk pattern in the handle_special function, leading to possible code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42384)

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted awk pattern in the evaluate function, leading to possible code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42385)

A flaw was found in BusyBox, where it did not properly sanitize while processing a crafted awk pattern in the nvalloc function, leading to possible code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42386)

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

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

Solution

Run 'yum update busybox' to update your system.

Plugin Details

Severity: High

ID: 156867

File Name: ala_ALAS-2022-1558.nasl

Version: 1.4

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 1/19/2022

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2021-42386

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:busybox-petitboot, p-cpe:/a:amazon:linux:busybox-debuginfo, p-cpe:/a:amazon:linux:busybox

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/18/2022

Vulnerability Publication Date: 11/15/2021

Reference Information

CVE: CVE-2021-42376, CVE-2021-42378, CVE-2021-42379, CVE-2021-42384, CVE-2021-42385, CVE-2021-42386

ALAS: 2022-1558

Detections

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