CVE-2016-6668: Atlassian HipChat Integration Plugin secret key disclosure

CVE-2016-6668 · Severity: high · CVSS 7.5 · Published 2017-01-23

A security vulnerability in the HipChat integration plugin for Atlassian Bitbucket, Confluence, and Jira allows unauthorized users to view the secret communication key used to connect these services. If an attacker obtains this key, they could gain full control over the linked HipChat instance, potentially accessing private conversations or disrupting communications. This issue affects organizations that have integrated their Atlassian servers with HipChat.

Technologies: Atlassian Confluence Server. Vendors: Atlassian.

Quick answers

Is CVE-2016-6668 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2016-6668 being exploited in the wild.
How severe is CVE-2016-6668?
High severity, with a CVSS score of 7.5, published 23 January 2017.
Which products and versions are affected?
Atlassian Bitbucket Server 6.26.0 - 6.27.4, 6.28.0 - 7.3.6, 7.4.0 - 7.8.16; Atlassian Confluence HipChat plugin 6.26.0 - 7.8.16; Atlassian Confluence Server 5.9.1 - 5.9.13, 5.10.0 - 5.10.3; Atlassian HipChat for JIRA plugin 6.26.0 - 7.8.16; and 1 more.
Is there a fix for CVE-2016-6668?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2016-6668 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2016-6668?
Check whether you run Atlassian Bitbucket Server, Atlassian Confluence HipChat plugin, Atlassian Confluence Server or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is classified as an information disclosure (CWE-200) where the HipChat integration plugin exposes its secret communication key on various administration and application pages. In Bitbucket Server, the key is exposed on administration pages and requires Admin access to exploit. In Confluence, the key can be accessed by users with 'Create Space' permissions (often a default for all users), Space Admin permissions, or System Admin permissions. An attacker who successfully retrieves this secret key can gain full control over the linked HipChat instance. The issue is resolved by upgrading the affected plugins to version 7.8.17 or higher, or by upgrading the host Atlassian products to their respective fixed maintenance releases.

Affected products

  • Atlassian Hipchat Integration Plugin for Bitbucket Server 6.26.0 - 6.27.4, 6.28.0 - 7.3.6, 7.4.0 - 7.8.16
  • Atlassian Confluence HipChat plugin 6.26.0 - 7.8.16
  • Atlassian HipChat for JIRA plugin 6.26.0 - 7.8.16
  • Atlassian Bitbucket Server 3.10.0 - 4.4.3, 4.5.0 - 4.5.2, 4.6.0 - 4.6.3, 4.7.0 - 4.7.1, 4.8.0 - 4.8.3
  • Atlassian Confluence Server 5.9.1 - 5.9.13, 5.10.0 - 5.10.3

Timeline

  • 2016-09-21: advisory: Initial security advisory published by Atlassian
  • 2017-01-23: disclosed: CVE published to NVD

References

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