Detections
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Amazon Linux 2023 : openssh, openssh-clients, openssh-keycat (ALAS2023-2025-1038)

low Nessus Plugin ID 240306

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1038 advisory.

 In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding. (CVE-2025-32728)

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 'dnf update openssh --releasever 2023.7.20250623' to update your system.

See Also

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

https://alas.aws.amazon.com/cve/html/CVE-2025-32728.html

https://alas.aws.amazon.com/AL2023/ALAS-2025-1038.html

Plugin Details

Severity: Low

ID: 240306

File Name: al2023_ALAS2023-2025-1038.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/23/2025

Updated: 6/23/2025

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.4

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.3

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

CVSS Score Source: CVE-2025-32728

CVSS v3

Risk Factor: Low

Base Score: 3.8

Temporal Score: 3.3

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openssh-clients, p-cpe:/a:amazon:linux:openssh-clients-debuginfo, p-cpe:/a:amazon:linux:openssh-keycat, p-cpe:/a:amazon:linux:pam_ssh_agent_auth, p-cpe:/a:amazon:linux:openssh-debugsource, p-cpe:/a:amazon:linux:openssh-keycat-debuginfo, p-cpe:/a:amazon:linux:openssh-server, p-cpe:/a:amazon:linux:openssh-server-debuginfo, p-cpe:/a:amazon:linux:pam_ssh_agent_auth-debuginfo, p-cpe:/a:amazon:linux:openssh, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:openssh-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: 6/23/2025

Vulnerability Publication Date: 12/12/2023

Reference Information

CVE: CVE-2025-32728

IAVA: 2025-A-0258