CVE-2020-25533

Severity Score

7.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Malwarebytes before 4.0 on macOS. A malicious application was able to perform a privileged action within the Malwarebytes launch daemon. The privileged service improperly validated XPC connections by relying on the PID instead of the audit token. An attacker can construct a situation where the same PID is used for running two different programs at different times, by leveraging a race condition during crafted use of posix_spawn.

Se detectó un problema en Malwarebytes versiones anteriores a 4.0 en macOS. Una aplicación maliciosa pudo llevar a cabo una acción privilegiada dentro del demonio de inicio de Malwarebytes. El servicio privilegiado comprobó inapropiadamente unas conexiones XPC al confiar en el PID en lugar del token de auditoría. Un atacante puede crear una situación en la que es usado el mismo PID para ejecutar dos programas diferentes en momentos diferentes, al aprovechar una condición de carrera durante un uso de posix_spawn diseñado

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-09-14 CVE Reserved
2021-01-15 CVE Published
2024-05-20 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid	2024-08-04

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
Malwarebytes Search vendor "Malwarebytes"		Malwarebytes Search vendor "Malwarebytes" for product "Malwarebytes"				< 4.0 Search vendor "Malwarebytes" for product "Malwarebytes" and version " < 4.0"		macos		Affected