Pulse Secure Desktop Client < 9.1R9 Multiple Vulnerabilities (SA44601)

critical Nessus Plugin ID 142056

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Synopsis

A VPN client installed on the remote windows system is affected by multiple vulnerabilities.

Description

The Pulse Secure Desktop Client installed on the remote Windows system is prior to 9.1R9. It is, therefore, affected by multiple vulnerabilities, including the following:

- A vulnerability in the Pulse Secure Desktop Client < 9.1R9 could allow the attacker to perform a MITM Attack if end users are convinced to connect to a malicious server. (CVE-2020-8241)

- A vulnerability in the Pulse Secure Desktop Client < 9.1R9 allows a restricted user on an endpoint machine can use system-level privileges if the Embedded Browser is configured with Credential Provider. This vulnerability only affects Windows PDC if the Embedded Browser is configured with the Credential Provider.
(CVE-2020-8240)

- A vulnerability in the Pulse Secure Desktop Client < 9.1R9 has Remote Code Execution (RCE) if users can be convinced to connect to a malicious server. This vulnerability only affects Windows PDC.To improve the security of connections between Pulse clients and Pulse Connect Secure, see below recommendation(s):
Disable Dynamic certificate trust for PDC. (CVE-2020-8254)

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 Pulse Secure Desktop Client 9.1R9 or later.

Plugin Details

Severity: Critical

ID: 142056

File Name: pulse_secure_desktop_client_SA44601.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 10/30/2020

Updated: 11/3/2020

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-8239

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:pulsesecure:pulse_secure_desktop_client

Required KB Items: installed_sw/Pulse Secure Desktop Client

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2020

Vulnerability Publication Date: 10/26/2020

Reference Information

CVE: CVE-2020-8239, CVE-2020-8240, CVE-2020-8241, CVE-2020-8254, CVE-2020-8956

IAVA: 2020-A-0495

Detections

Analytics