CVE-2020-24563

Trend Micro Apex One Authentication Bypass Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in Trend Micro Apex One may allow a local attacker to manipulate the process of the security agent unload option (if configured), which then could be manipulated to gain a privilege escalation and code execution. An attacker must first obtain the ability to execute low-privileged code on the target in order to exploit this vulnerability.

Una vulnerabilidad en Trend Micro Apex One, puede permitir a un atacante local manipular el proceso de la opción de descarga del agente de seguridad (si está configurada), que luego podría ser manipulado para obtener una escalada de privilegios y una ejecución de código. Un atacante primero debe obtener la capacidad de ejecutar código poco privilegiado sobre el objetivo a fin de explotar esta vulnerabilidad

This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the ApexOne Security Agent. The issue results from allowing authentication to be bypassed via a modified client that omits the authentication check. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

*Credits: @Kharosx0

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

2020-08-20 CVE Reserved
2020-09-25 CVE Published
2024-08-04 CVE Updated
2024-09-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-1218	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://success.trendmicro.com/solution/000271974	2021-07-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Trendmicro Search vendor "Trendmicro"	Apex One Search vendor "Trendmicro" for product "Apex One"	2019 Search vendor "Trendmicro" for product "Apex One" and version "2019"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Trendmicro Search vendor "Trendmicro"	Apex One Search vendor "Trendmicro" for product "Apex One"	saas Search vendor "Trendmicro" for product "Apex One" and version "saas"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe