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Amazon Linux 2 : mono (ALASMONO-2023-001)

critical Nessus Plugin ID 182059

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Synopsis

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

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2MONO-2023-001 advisory.

 - SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3. (CVE-2021-32840)

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 mono' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALASMONO-2023-001.html

https://alas.aws.amazon.com/cve/html/CVE-2021-32840.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Critical

ID: 182059

File Name: al2_ALASMONO-2023-001.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/27/2023

Updated: 9/28/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-32840

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ibm-data-db2, p-cpe:/a:amazon:linux:mono-complete, p-cpe:/a:amazon:linux:mono-core, p-cpe:/a:amazon:linux:mono-data, p-cpe:/a:amazon:linux:mono-data-oracle, p-cpe:/a:amazon:linux:mono-data-sqlite, p-cpe:/a:amazon:linux:mono-debuginfo, p-cpe:/a:amazon:linux:mono-devel, p-cpe:/a:amazon:linux:mono-extras, p-cpe:/a:amazon:linux:mono-locale-extras, p-cpe:/a:amazon:linux:mono-mvc, p-cpe:/a:amazon:linux:mono-mvc-devel, p-cpe:/a:amazon:linux:mono-reactive, p-cpe:/a:amazon:linux:mono-reactive-devel, p-cpe:/a:amazon:linux:mono-reactive-winforms, p-cpe:/a:amazon:linux:mono-wcf, p-cpe:/a:amazon:linux:mono-web, p-cpe:/a:amazon:linux:mono-web-devel, p-cpe:/a:amazon:linux:mono-winforms, p-cpe:/a:amazon:linux:mono-winfx, p-cpe:/a:amazon:linux:monodoc, p-cpe:/a:amazon:linux:monodoc-devel, cpe:/o:amazon:linux:2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/4/2023

Vulnerability Publication Date: 1/26/2022

Reference Information

CVE: CVE-2021-32840