CVE-2021-21518

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Dell SupportAssist Client for Consumer PCs versions 3.7.x, 3.6.x, 3.4.x, 3.3.x, Dell SupportAssist Client for Business PCs versions 2.0.x, 2.1.x, 2.2.x, and Dell SupportAssist Client ProManage 1.x contain a DLL injection vulnerability in the Costura Fody plugin. A local user with low privileges could potentially exploit this vulnerability, leading to the execution of arbitrary executable on the operating system with SYSTEM privileges.

Dell SupportAssist Client for Consumer PCs versiones 3.7.x, 3.6.x, 3.4.x, 3.3.x, Dell SupportAssist Client for Business PCs versiones 2.0.x, 2.1.x, 2.2.x y Dell SupportAssist Client ProManage versión 1.x, contienen una vulnerabilidad de inyección DLL en el plugin Costura Fody. Un usuario local poco privilegiado podría explotar esta vulnerabilidad, conllevando a una ejecución de un ejecutable arbitrario en el sistema operativo con privilegios SYSTEM

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-04 CVE Reserved
2021-03-12 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-427: Uncontrolled Search Path Element

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.dell.com/support/kbdoc/en-us/000184012/dsa-2021-052-dell-supportassist-for-home-pcs-business-pcs-security-update-for-pc-doctor-plugin-vulnerability	2021-03-19

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dell Search vendor "Dell"		Supportassist Client Promanage Search vendor "Dell" for product "Supportassist Client Promanage"				1.0 Search vendor "Dell" for product "Supportassist Client Promanage" and version "1.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Business Pcs Search vendor "Dell" for product "Supportassist For Business Pcs"				2.0.0 Search vendor "Dell" for product "Supportassist For Business Pcs" and version "2.0.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Business Pcs Search vendor "Dell" for product "Supportassist For Business Pcs"				2.1.0 Search vendor "Dell" for product "Supportassist For Business Pcs" and version "2.1.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Business Pcs Search vendor "Dell" for product "Supportassist For Business Pcs"				2.2.0 Search vendor "Dell" for product "Supportassist For Business Pcs" and version "2.2.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Home Pcs Search vendor "Dell" for product "Supportassist For Home Pcs"				3.3.3 Search vendor "Dell" for product "Supportassist For Home Pcs" and version "3.3.3"		-		Affected
Dell Search vendor "Dell"		Supportassist For Home Pcs Search vendor "Dell" for product "Supportassist For Home Pcs"				3.4.0 Search vendor "Dell" for product "Supportassist For Home Pcs" and version "3.4.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Home Pcs Search vendor "Dell" for product "Supportassist For Home Pcs"				3.6.0 Search vendor "Dell" for product "Supportassist For Home Pcs" and version "3.6.0"		-		Affected
Dell Search vendor "Dell"		Supportassist For Home Pcs Search vendor "Dell" for product "Supportassist For Home Pcs"				3.7.0 Search vendor "Dell" for product "Supportassist For Home Pcs" and version "3.7.0"		-		Affected