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                         AUSCERT Security Bulletin

                               ASB-2012.0123
       A number of vulnerabilities have been identified in WordPress
                             7 September 2012

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

Product:              WordPress
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact/Access:        Increased Privileges -- Unknown/Unspecified
                      Reduced Security     -- Unknown/Unspecified
Resolution:           Patch/Upgrade
Member content until: Sunday, October  7 2012

OVERVIEW

        A number of vulnerabilities have been identified in WordPress prior
        to version 3.4.2. [1]


IMPACT

        The vendor has provided the following details regarding these issues:
        
        "Version 3.4.2 also fixes a few security issues and contains some 
        security hardening. The vulnerabilities included potential privilege 
        escalation and a bug that affects multisite installs with untrusted 
        users. These issues were discovered and fixed by the WordPress 
        security team." [1]
        
        "These issues were discovered and addressed by the WordPress security 
        team:
        
        * Fix unfiltered HTML capabilities in multisite.
        * Fix possible privilege escalation in the Atom Publishing Protocol 
          endpoint.
        * Allow operations on network plugins only through the network admin.
        * Hardening: Simplify error messages when uploads fail.
        * Hardening: Validate a parameter passed to wp_get_object_terms()." [2]


MITIGATION

        The vendor recommends uprgading to the latest version of WordPress to
        correct these vulnerabilities. [1]


REFERENCES

        [1] WordPress 3.4.2 Maintenance and Security Release
            http://wordpress.org/news/2012/09/wordpress-3-4-2/

        [2] Version 3.4.2
            http://codex.wordpress.org/Version_3.4.2

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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