CVE-2020-36239
First published: Thu Jul 29 2021(Updated: )
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.
Credit: security@atlassian.com security@atlassian.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Atlassian Jira Data Center | >=6.3.0<8.5.16 | |
| Atlassian Jira Data Center | >=8.6.0<8.13.8 | |
| Atlassian Jira Data Center | >=8.14.0<8.17.0 | |
| Atlassian Jira Service Desk | >=2.0.2<4.5.16 | |
| Atlassian Jira Service Desk | >=4.6.0<4.13.8 | |
| Atlassian Jira Service Management | >=4.14.0<4.17.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-36239.
What is the severity of CVE-2020-36239?
The severity of CVE-2020-36239 is critical, with a score of 9.8.
Which Atlassian products are affected by CVE-2020-36239?
Jira Data Center, Jira Core Data Center, Jira Software Data Center, Jira Service Management Data Center are affected by CVE-2020-36239.
What is the fix for CVE-2020-36239?
To fix CVE-2020-36239, it is recommended to upgrade to version 8.5.16, 8.13.8, 8.17.0 for Jira Data Center and version 4.5.16, 4.13.8, 4.17.0 for Jira Service Management Data Center.
Where can I find more information about CVE-2020-36239?
You can find more information about CVE-2020-36239 in the Atlassian Security Advisory and the corresponding Jira tickets.
- collector/nvd-index
- agent/weakness
- agent/type
- agent/softwarecombine
- agent/references
- agent/severity
- agent/author
- agent/remedy
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/atlassian
- canonical/atlassian jira data center
- version/atlassian jira data center/6.3.0
- version/atlassian jira data center/8.6.0
- version/atlassian jira data center/8.14.0
- canonical/atlassian jira service desk
- version/atlassian jira service desk/2.0.2
- version/atlassian jira service desk/4.6.0
- canonical/atlassian jira service management
- version/atlassian jira service management/4.14.0