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AUSCERT Security Bulletin
A vulnerability has been identified in Atlassian Confluence
26 May 2014
AusCERT Security Bulletin Summary
Product: Atlassian Confluence
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Member content until: Wednesday, June 25 2014
A vulnerability has been identified in Atlassian Confluence up to and
including version 5.5.
The vendor has provided the following details regarding the issue:
"We have fixed a vulnerability in our version of an Xwork library
which is also part of Apache Struts. Attackers can use this
vulnerability to execute Java code of their choice on systems that
use these frameworks. The attacker needs to be able to access the
Confluence web interface. In cases when anonymous access is enabled,
a valid user account is not required to exploit this vulnerability.
We have discovered this vulnerability during our review of the
recent Struts security advisories. This vulnerability is specific to
The vulnerability affects all versions of Confluence up to and
including 5.5. Confluence 5.5.1 is not vulnerable." 
The vendor recommends updating to the latest version of Confluence to
correct this vulnerability.
 Confluence Security Advisory 2014-05-21
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
The University of Queensland
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Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
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On call after hours for member emergencies only.
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