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Tenable Nessus Agent 10.4.2 Multiple Vulnerabilities (TNS-2023-38)

high Nessus Plugin ID 184128

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Synopsis

An instance of Nessus Agent installed on the remote system is affected by multiple vulnerabilities.

Description

According to its self-reported version, the Tenable Nessus Agent running on the remote host is 10.4.2. It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2023-38 advisory.

 - Nessus Agent leverages third-party software to help provide underlying functionality. Several of the third-party components (OpenSSL, zlib) were found to contain vulnerabilities, and updated versions have been made available by the providers.Out of caution and in line with best practice, Tenable has opted to upgrade these components to address the potential impact of the issues. Nessus Agent 10.4.3 updates OpenSSL to version 3.0.12 and zlib fixes have been applied to address the identified vulnerabilities.Additionally, one other vulnerability was discovered, reported and fixed:Under certain conditions, a low privileged attacker could load a specially crafted file during installation or upgrade to escalate privileges on Windows and Linux hosts. - CVE-2023-5847 Tenable has released Nessus Agent 10.4.3 to address these issues. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus-agents). (CVE-2023-3446, CVE-2023-3817, CVE-2023-45853, CVE-2023-4807, CVE-2023-5847)

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

Solution

Upgrade to Tenable Nessus Agent 10.4.3 or later.

See Also

https://www.tenable.com/security/TNS-2023-38

Plugin Details

Severity: High

ID: 184128

File Name: tenable_nessus_agent_TNS-2023-38.nasl

Version: 1.4

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 11/1/2023

Updated: 10/23/2024

Configuration: Enable thorough checks

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

Risk Information

CVSS Score Rationale: Score based on analysis of the vendor advisory.

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: manual

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/a:tenable:nessus_agent

Required KB Items: installed_sw/Tenable Nessus Agent

Exploit Ease: No known exploits are available

Patch Publication Date: 10/31/2023

Vulnerability Publication Date: 7/13/2023

Reference Information

CVE: CVE-2023-3446, CVE-2023-3817, CVE-2023-45853, CVE-2023-4807, CVE-2023-5847

IAVA: 2023-A-0606-S