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                         AUSCERT Security Bulletin

                               ASB-2015.0104
        A number of vulnerabilities have been identified in Joomla!
                              26 October 2015

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Joomla!
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                      Access Confidential Data        -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
CVE Names:            CVE-2015-7899 CVE-2015-7859 CVE-2015-7858
                      CVE-2015-7857 CVE-2015-7297 
Member content until: Wednesday, November 25 2015

OVERVIEW

        A number of vulnerabilities have been identified in Joomla! prior to
        version 3.4.5. [1, 2, 3]


IMPACT

        The vendor has provided the following details regarding these 
        vulnerabilities:
        
        CVE-2015-7297, CVE-2015-7857, CVE-2015-7858: "Inadequate filtering 
        of request data leads to a SQL Injection vulnerability." [1]
        
        CVE-2015-7859: "Inadequate ACL checks in com_contenthistory provide
        potential read access to data which should be access restricted." 
        [2]
        
        CVE-2015-7899: "Inadequate ACL checks in com_content provide 
        potential read access to data which should be access restricted." [3]


MITIGATION

        The vendor recommends updating to the latest version of Joomla! to 
        correct these issues. [1, 2, 3]


REFERENCES

        [1] [20151001] - Core - SQL Injection
            http://developer.joomla.org/security-centre/628-20151001-core-sql-injection.html

        [2] [20151002] - Core - ACL Violations
            http://developer.joomla.org/security-centre/629-20151002-core-acl-violations.html

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
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours 
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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