CVE-2020-36239

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Jira Data Center, Jira Core Data Center, Jira Software Data Center from version 6.3.0 before 8.5.16, from 8.6.0 before 8.13.8, from 8.14.0 before 8.17.0 and Jira Service Management Data Center from version 2.0.2 before 4.5.16, from version 4.6.0 before 4.13.8, and from version 4.14.0 before 4.17.0 exposed a Ehcache RMI network service which attackers, who can connect to the service, on port 40001 and potentially 40011[0][1], could execute arbitrary code of their choice in Jira through deserialization due to a missing authentication vulnerability. While Atlassian strongly suggests restricting access to the Ehcache ports to only Data Center instances, fixed versions of Jira will now require a shared secret in order to allow access to the Ehcache service. [0] In Jira Data Center, Jira Core Data Center, and Jira Software Data Center versions prior to 7.13.1, the Ehcache object port can be randomly allocated. [1] In Jira Service Management Data Center versions prior to 3.16.1, the Ehcache object port can be randomly allocated.

Jira Data Center, Jira Core Data Center, Jira Software Data Center desde la versión 6.3.0 antes de la versión 8.5.16, desde la versión 8.6.0 antes de la versión 8.13.8, desde la 8.14.0 antes de la versión 8.17.0 y Jira Service Management Data Center desde la versión 2.0.2 antes de la versión 4.5.16, desde la versión 4.6.0 antes de la versión 4.13.8, y desde la versión 4.14.0 antes de la versión 4.17.0 expusieron un servicio de red Ehcache RMI que los atacantes, que pueden conectarse al servicio, en el puerto 40001 y potencialmente 40011[0][1], podrían ejecutar código arbitrario de su elección en Jira a través de la deserialización debido a una vulnerabilidad de falta de autenticación. Aunque Atlassian sugiere encarecidamente que se restrinja el acceso a los puertos Ehcache sólo a las instancias del Centro de Datos, las versiones fijas de Jira requerirán ahora un secreto compartido para permitir el acceso al servicio Ehcache. [0] En las versiones de Jira Data Center, Jira Core Data Center y Jira Software Data Center anteriores a la versión 7.13.1, el puerto del objeto Ehcache puede ser asignado aleatoriamente. [1] En las versiones de Jira Service Management Data Center anteriores a la versión 3.16.1, el puerto del objeto Ehcache puede asignarse aleatoriamente

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2021-01-27 CVE Reserved
2021-07-27 CVE Published
2024-06-26 EPSS Updated
2024-10-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-306: Missing Authentication for Critical Function
CWE-862: Missing Authorization

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html	2022-08-01

URL	Date	SRC
https://jira.atlassian.com/browse/JRASERVER-72566	2022-08-01
https://jira.atlassian.com/browse/JSDSERVER-8454	2022-08-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				>= 6.3.0 < 8.5.16 Search vendor "Atlassian" for product "Jira Data Center" and version " >= 6.3.0 < 8.5.16"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				>= 8.6.0 < 8.13.8 Search vendor "Atlassian" for product "Jira Data Center" and version " >= 8.6.0 < 8.13.8"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Data Center Search vendor "Atlassian" for product "Jira Data Center"				>= 8.14.0 < 8.17.0 Search vendor "Atlassian" for product "Jira Data Center" and version " >= 8.14.0 < 8.17.0"		-		Affected
Atlassian Search vendor "Atlassian"		Jira Service Desk Search vendor "Atlassian" for product "Jira Service Desk"				>= 2.0.2 < 4.5.16 Search vendor "Atlassian" for product "Jira Service Desk" and version " >= 2.0.2 < 4.5.16"		data_center		Affected
Atlassian Search vendor "Atlassian"		Jira Service Desk Search vendor "Atlassian" for product "Jira Service Desk"				>= 4.6.0 < 4.13.8 Search vendor "Atlassian" for product "Jira Service Desk" and version " >= 4.6.0 < 4.13.8"		data_center		Affected
Atlassian Search vendor "Atlassian"		Jira Service Management Search vendor "Atlassian" for product "Jira Service Management"				>= 4.14.0 < 4.17.0 Search vendor "Atlassian" for product "Jira Service Management" and version " >= 4.14.0 < 4.17.0"		data_center		Affected