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  1. Jira Service Management Server and Data Center
  2. JSDSERVER-8454

Jira Data Center & Jira Service Management Data Center - Missing Authentication for Ehcache RMI - CVE-2020-36239

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    Details

    • Symptom Severity:
      Severity 1 - Critical
    • CVSS Score:
      9.8
    • CVSS Severity:
      Critical
    • CVE ID:
      CVE-2020-36239

      Description

      Issue Summary

      Jira Data Center, Jira Core Data Center, Jira Software Data Center, and Jira Service Management Data Center exposed a Ehcache RMI network service which attackers, who can connect to the service, on port 40001 and potentially 40011 [0][1][2], 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.

      [2] The default Ehcache port is 40001 but it can be configured to be on a different port, see Installing JIRA Data Center for more details.

       

      Affected versions:
      The versions of Jira Data Center, Jira Core Data Center, and Jira Software Data Center affected by this vulnerability are:

      • From version 6.3.0 before 8.5.16 (the fixed version for 8.5.x)
      • From version 8.6.0 before 8.13.8 (the fixed version for 8.13.x)
      • From version 8.14.0 before 8.17.0

       

      The versions of Jira Service Management Data Center affected by this vulnerability are:

      • From version 2.0.2 before 4.5.16 (the fixed version for 4.5.x)
      • From version 4.6.0 before 4.13.8 (the fixed version for 4.13.x)
      • From version 4.14.0 before 4.17.0

      Fixed Versions

      To address these issues, we have released Jira Data Center, Jira Core Data Center, and Jira Software Data Center:

      • 8.5.16 that contains a fix for this issue
      • 8.13.8 that contains a fix for this issue
      • 8.17.0 that contains a fix for this issue

       

      Jira Service Management Data Center versions:

      • 4.5.16 that contains a fix for this issue
      • 4.13.8 that contains a fix for this issue
      • 4.17.0 that contains a fix for this issue

       

      These versions can be downloaded at:

      Additional details

      For additional details, see the full advisory: https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html

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              Assignee:
              dblack David Black
              Reporter:
              security-metrics-bot Security Metrics Bot
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                Dates

                Created:
                Updated:
                Resolved:

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