CVE-2020-36239
"Atlassian Jira Remote Code Execution via Deserialization"
Description
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.
INFO
Published Date :
July 29, 2021, 11:15 a.m.
Last Modified :
Aug. 1, 2022, 4:32 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-36239 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-36239
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-36239.
| URL | Resource |
|---|---|
| https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html | Patch Vendor Advisory |
| https://jira.atlassian.com/browse/JRASERVER-72566 | Issue Tracking Vendor Advisory |
| https://jira.atlassian.com/browse/JSDSERVER-8454 | Issue Tracking Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Programmatically create hunting rules for deserialization exploitation with multiple keywords, gadget chains, object types, encodings, and rule types
deserialization yara snort snort-rules-generate yara-rule-generator ysoserial
Python YARA PowerShell Shell
The cheat sheet about Java Deserialization vulnerabilities
javadeser java-deserialization pentesting
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-36239 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-36239 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Aug. 01, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 2.0.2 up to (excluding) 4.5.16 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 4.6.0 up to (excluding) 4.13.8 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.17.0 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 OR *cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 *cpe:2.3:a:atlassian:jira_service_desk:*:*:*:*:data_center:*:*:* versions from (including) 2.0.2 up to (excluding) 4.5.16 *cpe:2.3:a:atlassian:jira_service_desk:*:*:*:*:data_center:*:*:* versions from (including) 4.6.0 up to (excluding) 4.13.8 *cpe:2.3:a:atlassian:jira_service_management:*:*:*:*:data_center:*:*:* versions from (including) 4.14.0 up to (excluding) 4.17.0 -
Reanalysis by [email protected]
Jul. 15, 2022
Action Type Old Value New Value Removed CWE NIST CWE-862 Added CWE NIST CWE-306 -
CPE Deprecation Remap by [email protected]
Mar. 30, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 from (excluding) 8.17.0 OR *cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 from (excluding) 8.17.0 -
Initial Analysis by [email protected]
Aug. 11, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html No Types Assigned https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html Patch, Vendor Advisory Changed Reference Type https://jira.atlassian.com/browse/JRASERVER-72566 No Types Assigned https://jira.atlassian.com/browse/JRASERVER-72566 Issue Tracking, Vendor Advisory Changed Reference Type https://jira.atlassian.com/browse/JSDSERVER-8454 No Types Assigned https://jira.atlassian.com/browse/JSDSERVER-8454 Issue Tracking, Vendor Advisory Added CWE NIST CWE-862 Added CPE Configuration OR *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:core_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 2.0.2 up to (excluding) 4.5.16 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 4.6.0 up to (excluding) 4.13.8 *cpe:2.3:a:atlassian:service_management_data_center:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.17.0 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 8.5.16 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 8.6.0 up to (excluding) 8.13.8 *cpe:2.3:a:atlassian:software_data_center:*:*:*:*:*:*:*:* versions from (including) 8.14.0 up to (excluding) 8.17.0 -
CVE Modified by [email protected]
Jul. 30, 2021
Action Type Old Value New Value Changed Description 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 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.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-36239 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-36239
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.02 }} 0.05%
score
0.83881
percentile