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OpenSSH < 9.3p2 Vulnerability

critical Nessus Plugin ID 178910

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Synopsis

The SSH server running on the remote host is affected by a vulnerability.

Description

The version of OpenSSH installed on the remote host is prior to 9.3p2. It is, therefore, affected by a vulnerability as referenced in the release-9.3p2 advisory.

 - Fix CVE-2023-38408 - a condition where specific libaries loaded via ssh-agent(1)'s PKCS#11 support could be abused to achieve remote code execution via a forwarded agent socket if the following (openssh-9.3p2-1)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to OpenSSH 9.3p2 / 9.4 or later.

See Also

https://www.openssh.com/txt/release-9.3p2

Plugin Details

Severity: Critical

ID: 178910

File Name: openssh_93p2.nasl

Version: 1.4

Type: remote

Family: Misc.

Published: 7/26/2023

Updated: 3/27/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2023-38408

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: cpe:/a:openbsd:openssh

Required KB Items: Settings/ParanoidReport, installed_sw/OpenSSH

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/19/2023

Vulnerability Publication Date: 7/19/2023

Reference Information

CVE: CVE-2023-38408