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Amazon Linux 2 : shadow-utils (ALAS-2023-2247)

medium Nessus Plugin ID 181701

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Synopsis

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

Description

The version of shadow-utils installed on the remote host is prior to 4.1.5.1-24. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2247 advisory.

 A flaw was found in shadow-utils. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. This may allow an attacker with enough access to retrieve the password from the memory.
 (CVE-2023-4641)

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 shadow-utils' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2247.html

https://alas.aws.amazon.com/cve/html/CVE-2023-4641.html

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

Plugin Details

Severity: Medium

ID: 181701

File Name: al2_ALAS-2023-2247.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/20/2023

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: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-4641

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:shadow-utils, p-cpe:/a:amazon:linux:shadow-utils-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/13/2023

Vulnerability Publication Date: 9/13/2023

Reference Information

CVE: CVE-2023-4641