CVE-2020-25584

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In FreeBSD 13.0-STABLE before n245118, 12.2-STABLE before r369552, 11.4-STABLE before r369560, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, a superuser inside a FreeBSD jail configured with the non-default allow.mount permission could cause a race condition between the lookup of ".." and remounting a filesystem, allowing access to filesystem hierarchy outside of the jail.

En FreeBSD versiones 13.0-STABLE anteriores a n245118, versiones 12.2-STABLE anteriores a r369552, versiones 11.4-STABLE anteriores a r369560, versiones 13.0-RC5 anteriores a p1, versiones 12.2-RELEASE anteriores a p6 y versiones 11.4-RELEASE anteriores a p9, un superusuario dentro de una jaula FreeBSD configurada con el permiso por defecto allow.mount podría causar una condición de carrera entre la búsqueda de ".." y volver a montar un sistema de archivos, permitiendo el acceso a la jerarquía del sistema de archivos fuera de jail

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

High

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
2021-04-07 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (2)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20210423-0009	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.asc	2021-06-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				< 11.4 Search vendor "Freebsd" for product "Freebsd" and version " < 11.4"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				>= 12.0 < 12.2 Search vendor "Freebsd" for product "Freebsd" and version " >= 12.0 < 12.2"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		beta1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		p1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		p2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		p3		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		p4		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		p5		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		rc1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				11.4 Search vendor "Freebsd" for product "Freebsd" and version "11.4"		rc2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2"		p1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				12.2 Search vendor "Freebsd" for product "Freebsd" and version "12.2"		p2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		beta1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		beta2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		beta3		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		beta4		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		rc1		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		rc2		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		rc3		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		rc4		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				13.0 Search vendor "Freebsd" for product "Freebsd" and version "13.0"		rc5		Affected