CVE-2019-3586

McAfee Endpoint Security firewall not always acting on GTI lookup results

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Protection Mechanism Failure in the Firewall in McAfee Endpoint Security (ENS) 10.x prior to 10.6.1 May 2019 update allows context-dependent attackers to circumvent ENS protection where GTI flagged IP addresses are not blocked by the ENS Firewall via specially crafted malicious sites where the GTI reputation is carefully manipulated and does not correctly trigger the ENS Firewall to block the connection.

Una falla del mecanismo de protección en el Firewall en McAfee Endpoint Security (ENS) 10.x anterior a 10.6.1 de Mayo de 2019 permite a los atacantes del tipo context-dependent eludir la protección ENS donde las direcciones IP identificadas con GTI no están bloqueadas por el Firewall ENS por medio de sitios maliciosos especialmente creados donde la reputación de GTI es manipulada cuidadosamente y no activa correctamente el Firewall ENS para bloquear la conexión.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-03 CVE Reserved
2019-05-15 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-693: Protection Mechanism Failure

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/108416	Vdb Entry
https://kc.mcafee.com/corporate/index?page=content&id=SB10280	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mcafee Search vendor "Mcafee"		Endpoint Security Search vendor "Mcafee" for product "Endpoint Security"				>= 10.0.0 <= 10.6.1 Search vendor "Mcafee" for product "Endpoint Security" and version " >= 10.0.0 <= 10.6.1"		-		Affected
Mcafee Search vendor "Mcafee"		Endpoint Security Search vendor "Mcafee" for product "Endpoint Security"				10.6.1 Search vendor "Mcafee" for product "Endpoint Security" and version "10.6.1"		201905		Affected