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AUSCERT Security Bulletin
A vulnerability has been identified in Atlassian Confluence
27 February 2014
AusCERT Security Bulletin Summary
Product: Atlassian Confluence
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Member content until: Saturday, March 29 2014
A vulnerability has been identified in Atlassian Confluence up to and
including version 5.4.1.
The vendor has provided the following details regarding the issue:
"User privilege escalation
Atlassian rates the severity level of this vulnerability as critical,
according to the scale published in Severity Levels of Security Issues.
The scale allows us to rank the severity as critical, high, moderate
This is an independent assessment and you should evaluate its
applicability to your own IT environment.
We have identified and fixed a vulnerability in Confluence which
allowed unauthenticated users to commit actions on behalf of any
other authorised user. In order to exploit this vulnerability, an
attacker requires access to Confluence web interface.
The vulnerability affects all supported versions of Confluence up to
and including 5.4.1.
(info) Versions 5.3.4, 5.4 and 5.4.1 are not vulnerable but require
patches for compatibility purposes in order to be able to connect to
patched or upgraded versions of JIRA and other Atlassian products. You
do not need to patch these versions if you are not using Application
Links with Trusted Applications authentication configured.
This issue has been fixed in 5.4.2. The issue is tracked in
CONF-31628 - Privilege escalation RESOLVED. " 
The vendor recommends updating to the latest version of Confluence to
correct this vulnerability.
 Confluence Security Advisory 2014-02-26
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
Australian Computer Emergency Response Team
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Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
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On call after hours for member emergencies only.
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