AusCERT - AA-2009.0144 -- [Win][UNIX/Linux] -- MoinMoin: Inappropriate Access

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AA-2009.0144 -- [Win][UNIX/Linux] -- MoinMoin: Inappropriate Access
Date: 12 June 2009

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AA-2009.0144                  AUSCERT Advisory

                             [Win][UNIX/Linux]
                      MoinMoin: Inappropriate Access
                               12 June 2009
- ---------------------------------------------------------------------------

        AusCERT Advisory Summary
        ------------------------

Product:              MoinMoin
Operating System:     UNIX variants (UNIX, Linux, OSX)
                      Windows
Impact:               Inappropriate Access
Access:               Remote/Unauthenticated
Member content until: Friday, July 10 2009

OVERVIEW:

       MoinMoin 1.8.4 has been released correcting a security vulnerability.


IMPACT:

       The vendor has provided the following information regarding this
       vulnerability:

       "hierarchical ACL security fix" [1]

       The changeset for this release also contains the following 
       information:

       "If the item has an acl (even one that doesn't match) we *do not*
       check the parents. We only check the parents if there's no acl on
       the item at all." [2]


MITIGATION:

       Users can correct this vulnerability by downloading version 1.8.4 from 
       the vendor's website. [3]


REFERENCES:

       [1] Security Fix Announcements - MoinMoin
           http://moinmo.in/SecurityFixes

       [2] moin/1.8 / changeset
           http://hg.moinmo.in/moin/1.8/rev/897cdbe9e8f2
         
       [3] MoinMoin 1.8.4
           http://static.moinmo.in/files/moin-1.8.4.tar.gz

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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