Amazon Linux AMI : shadow-utils (ALAS-2023-1873)

medium Nessus Plugin ID 184395

Synopsis

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

Description

The version of shadow-utils installed on the remote host is prior to 4.1.4.2-13.11. It is, therefore, affected by a vulnerability as referenced in the ALAS-2023-1873 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) (CVE-2023-4641)

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/ALAS-2023-1873.html

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

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

Plugin Details

Severity: Medium

ID: 184395

File Name: ala_ALAS-2023-1873.nasl

Version: 1.2

Type: local

Agent: unix

Published: 11/3/2023

Updated: 1/5/2024

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, 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: 10/30/2023

Vulnerability Publication Date: 10/30/2023

Reference Information

CVE: CVE-2023-4641