CVE-2020-8254

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Una vulnerabilidad en Pulse Secure Desktop Client versiones anteriores a 9.1R9, presenta una Ejecución de Código Remota (RCE) si usuarios pueden ser convencidos a conectarse a un servidor malicioso. Esta vulnerabilidad solo afecta a Windows PDC. Para mejorar la seguridad de las conexiones entre los clientes Pulse y Pulse Connect Secure, véase la(s) siguiente(s) recomendación(es): Deshabilite el certificado confiable dinámico para PDC

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-28 CVE Reserved
2020-10-28 CVE Published
2023-11-26 First Exploit
2024-08-04 CVE Updated
2024-08-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-23: Relative Path Traversal

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/mbadanoiu/CVE-2020-8254	2023-11-26

URL	Date	SRC

URL	Date	SRC
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601	2020-11-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				< 9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version " < 9.1"		windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r1, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r2, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r3, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r3.1, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r4, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r4.1, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r4.2, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r5, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r6, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r7, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r7.1, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r8, windows		Affected
Pulsesecure Search vendor "Pulsesecure"		Pulse Secure Desktop Client Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client"				9.1 Search vendor "Pulsesecure" for product "Pulse Secure Desktop Client" and version "9.1"		r8.2, windows		Affected