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  1. Confluence Data Center
  2. CONFSERVER-59244

Confluence Server and Data Center - Atlassian Companion Man-in-the-Middle - CVE-2019-15006

      Issue Summary

      There was a man-in-the-middle (MITM) vulnerability present in the Confluence Previews plugin in Confluence Server and Confluence Data Center. This plugin was used to facilitate communication with the Atlassian Companion application. The Confluence Previews plugin in Confluence Server and Confluence Data Center communicated with the Companion application via the atlassian-domain-for-localhost-connections-only.com domain name, the DNS A record of which points at 127.0.0.1. Additionally, a signed certificate for the domain was publicly distributed with the Companion application. An attacker in the position to control DNS resolution of their victim could carry out a man-in-the-middle (MITM) attack between Confluence Server (or Confluence Data Center) and the atlassian-domain-for-localhost-connections-only.com domain intended to be used with the Companion application. This certificate has been revoked, however, usage of the atlassian-domain-for-localhost-connections-only.com domain name was still present in Confluence Server and Confluence Data Center. An attacker could perform the described attack by denying their victim access to certificate revocation information, and carry out a man-in-the-middle (MITM) attack to observe files being edited using the Companion application and/or modify them, and access some limited user information.

      Affected Versions

      Versions of Confluence Server and Confluence Data Center affected by this vulnerability:

      • from 6.11.0 before 6.13.10 (fixed in 6.13.10)
      • from 6.14.0 before 6.15.10 (fixed in 6.15.10)
      • from 7.0.1 before 7.0.5 (fixed in 7.0.5)
      • from 7.1.0 before 7.1.2 (fixed in 7.1.2)

      EAP and beta versions: 7.2.0-rc2, 7.2.0-rc1, 7.2.0-beta1, 7.1.0-rc3, 7.1.0-rc2, 7.1.0-rc1, 7.1.0-beta1, 7.0.1-rc1, 7.0.1-beta2, 7.0.1-beta1, 6.15.0-rc1, 6.15.0-beta2, 6.15.0-beta1, 6.14.0-rc1, 6.14.0-beta1, 6.13.0-rc1, 6.13.0-beta1, 6.12.0-rc1, 6.12.0-beta1, 6.11.0-rc1, 6.11.0-beta1

      Fixed Versions

      Confluence Server

      Version 7.2.0 available at https://www.atlassian.com/software/confluence/download
      Version 7.1.2 available at https://www.atlassian.com/software/confluence/download-archives
      Version 7.0.5 available at https://www.atlassian.com/software/confluence/download-archives
      Version 6.15.10 available at https://www.atlassian.com/software/confluence/download-archives
      Version 6.13.10 available at https://www.atlassian.com/software/confluence/download-archives

      Confluence Data Center

      Version 7.2.0 available at https://www.atlassian.com/software/confluence/download/data-center
      Version 7.1.2 available at https://www.atlassian.com/software/confluence/download-archives
      Version 7.0.5 available at https://www.atlassian.com/software/confluence/download-archives
      Version 6.15.10 available at https://www.atlassian.com/software/confluence/download-archives
      Version 6.13.10 available at https://www.atlassian.com/software/confluence/download-archives

      Notes

      For additional details, see the full advisory: https://confluence.atlassian.com/doc/confluence-security-advisory-2019-12-18-982324349.html

            [CONFSERVER-59244] Confluence Server and Data Center - Atlassian Companion Man-in-the-Middle - CVE-2019-15006

            Jonathan added a comment -

            after upgrading to confluence server version 7.2.0 on our dev system the problem persists when using firefox, browser doesn't recognize the running companion app.

            Jonathan added a comment - after upgrading to confluence server version 7.2.0 on our dev system the problem persists when using firefox, browser doesn't recognize the running companion app.

            Quan Pham added a comment -

            A fix for this issue is available to Server and Data Center customers in Confluence 6.15.10
            Upgrade now or check out the Release Notes to see what other issues are resolved.

            Quan Pham added a comment - A fix for this issue is available to Server and Data Center customers in Confluence 6.15.10 Upgrade now or check out the Release Notes to see what other issues are resolved.

            Quan Pham added a comment -

            A fix for this issue is available to Server and Data Center customers in Confluence 7.0.5
            Upgrade now or check out the Release Notes to see what other issues are resolved.

            Quan Pham added a comment - A fix for this issue is available to Server and Data Center customers in Confluence 7.0.5 Upgrade now or check out the Release Notes to see what other issues are resolved.

            This is an independent assessment and you should evaluate its applicability to your own IT environment.
            CVSS v3 score: 5.8 => Medium severity

            Exploitability Metrics

            Attack Vector Network
            Attack Complexity High
            Privileges Required None
            User Interaction Required

            Scope Metric

            Scope Changed

            Impact Metrics

            Confidentiality Low
            Integrity Low
            Availability Low

            https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

            Security Metrics Bot added a comment - This is an independent assessment and you should evaluate its applicability to your own IT environment. CVSS v3 score: 5.8 => Medium severity Exploitability Metrics Attack Vector Network Attack Complexity High Privileges Required None User Interaction Required Scope Metric Scope Changed Impact Metrics Confidentiality Low Integrity Low Availability Low https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

              aknight@atlassian.com Alex K
              security-metrics-bot Security Metrics Bot
              Affected customers:
              0 This affects my team
              Watchers:
              8 Start watching this issue

                Created:
                Updated:
                Resolved: