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                         AUSCERT Security Bulletin

                               ASB-2009.1106
               A vulnerability has been identified in puppet
                              7 October 2009

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

Product:              puppet
Operating System:     UNIX variants (UNIX, Linux, OSX)
Impact/Access:        Unauthorised Access -- Existing Account
Resolution:           Patch/Upgrade
CVE Names:            CVE-2009-3564  
Member content until: Friday, November  6 2009

OVERVIEW

        A vulnerability has been identified in puppet version 0.24.6 and prior.


IMPACT

        This vulnerability, caused by puppetmasterd failing to reset its
        supplementary groups when changing users, could allow local users to 
        access restricted files. [1]


MITIGATION

        There is a patch available from Reductive Labs, which has also been 
        incorporated into the Fedora EPEL 4 repository. [2]


REFERENCES

        [1] Red Hat Bugzilla - Bug 475201
            https://bugzilla.redhat.com/show_bug.cgi?id=475201

        [2] Puppet - Bug #1806
            http://projects.reductivelabs.com/issues/show/1806

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.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

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