Detections
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Tenable Nessus Agent < 8.2.5 Multiple Vulnerabilities (TNS-2021-12)

medium Nessus Plugin ID 150797

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Synopsis

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

Description

According to its self-reported version, the Tenable Nessus agent running on the remote Windows host is prior to 8.2.5. It is, therefore, affected by multiple vulnerabilities:

 - Multiple local privilege escalation vulnerabilities. A local attacker can exploit these to gain administrator privileges to the system. (CVE-2021-20099, CVE-2021-20100)

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 Tenable Nessus Agent version 8.2.5 or later.

See Also

https://www.tenable.com/security/tns-2021-12

Plugin Details

Severity: Medium

ID: 150797

File Name: tenable_nessus_agent_tns_2021_12.nasl

Version: 1.7

Type: local

Agent: windows

Family: Windows

Published: 6/15/2021

Updated: 12/1/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-20100

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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: SMB/Registry/Enumerated, installed_sw/Tenable Nessus Agent

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2021

Vulnerability Publication Date: 6/15/2021

Reference Information

CVE: CVE-2021-20099, CVE-2021-20100

IAVB: 2021-B-0039-S