Vulnerability Monitor

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CVE-2020-36239


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.


Published

2021-07-29T11:15:07.477

Last Modified

2024-11-21T05:29:07.670

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-862
  • Type: Primary
    CWE-306
  • Type: Secondary
    CWE-862

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application atlassian jira_data_center < 8.5.16 Yes
Application atlassian jira_data_center < 8.13.8 Yes
Application atlassian jira_data_center < 8.17.0 Yes
Application atlassian jira_service_desk < 4.5.16 Yes
Application atlassian jira_service_desk < 4.13.8 Yes
Application atlassian jira_service_management < 4.17.0 Yes

References