Slackware Linux 15.0 / current openssh Vulnerability (SSA:2023-200-02)

critical Nessus Plugin ID 178489

Synopsis

The remote Slackware Linux host is missing a security update to openssh.

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 SSA:2023-200-02 advisory.

- The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009. (CVE-2023-38408)

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

Solution

Upgrade the affected openssh package.

See Also

http://www.nessus.org/u?65b1abcf

Plugin Details

Severity: Critical

ID: 178489

File Name: Slackware_SSA_2023-200-02.nasl

Version: 1.6

Type: local

Published: 7/19/2023

Updated: 12/22/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

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: p-cpe:/a:slackware:slackware_linux:openssh, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

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

IAVA: 2023-A-0377-S