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Amazon Linux 2 : openssh (ALAS-2023-2202)

medium Nessus Plugin ID 179807

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Synopsis

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

Description

The version of openssh installed on the remote host is prior to 7.4p1-22. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2202 advisory.

 An issue was discovered in OpenSSH 7.4 on Amazon Linux 2 and Amazon Linux 1. The fix for CVE-2019-6111 only covered cases where an absolute path is passed to scp. When a relative path is used there is no verification that the name of a file received by the client matches the file requested. (CVE-2023-35812)

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 openssh' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2202.html

https://alas.aws.amazon.com/cve/html/CVE-2023-35812.html

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

Plugin Details

Severity: Medium

ID: 179807

File Name: al2_ALAS-2023-2202.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/14/2023

Updated: 12/17/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2023-35812

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/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-cavs, p-cpe:/a:amazon:linux:openssh-keycat, p-cpe:/a:amazon:linux:pam_ssh_agent_auth, p-cpe:/a:amazon:linux:openssh-askpass, p-cpe:/a:amazon:linux:openssh-server, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:openssh-ldap, p-cpe:/a:amazon:linux:openssh-server-sysvinit, p-cpe:/a:amazon:linux:openssh, 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: 8/3/2023

Vulnerability Publication Date: 8/3/2023

Reference Information

CVE: CVE-2023-35812