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                         AUSCERT Security Bulletin

                               ASB-2017.0159
                   Security updates for Microsoft Office
                              11 October 2017

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

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

Product:              Microsoft Office
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Remote with User Interaction
                      Increased Privileges            -- Remote with User Interaction
                      Cross-site Scripting            -- Remote with User Interaction
                      Provide Misleading Information  -- Remote with User Interaction
                      Access Confidential Data        -- Remote with User Interaction
                      Reduced Security                -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2017-11826 CVE-2017-11825 CVE-2017-11820
                      CVE-2017-11777 CVE-2017-11776 CVE-2017-11775
                      CVE-2017-11774  
Member content until: Friday, November 10 2017

OVERVIEW

        Microsoft has released its monthly security patch update for the month 
        of October 2017. [1]
        
        This update resolves 8 vulnerabilities across the following products: 
        
         Microsoft Office 2010 Service Pack 2 (32-bit editions)
         Microsoft Office 2010 Service Pack 2 (64-bit editions)
         Microsoft Office 2013 RT Service Pack 1
         Microsoft Office 2013 Service Pack 1 (32-bit editions)
         Microsoft Office 2013 Service Pack 1 (64-bit editions)
         Microsoft Office 2016 (32-bit edition)
         Microsoft Office 2016 (64-bit edition)
         Microsoft Office 2016 Click-to-Run (C2R) for 32-bit editions
         Microsoft Office 2016 Click-to-Run (C2R) for 64-bit editions
         Microsoft Office 2016 for Mac
         Microsoft Office Compatibility Pack Service Pack 3
         Microsoft Office Online Server 2016
         Microsoft Office Web Apps Server 2010 Service Pack 2
         Microsoft Office Web Apps Server 2013 Service Pack 1
         Microsoft Office Word Viewer
         Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
         Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
         Microsoft Outlook 2013 RT Service Pack 1
         Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
         Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
         Microsoft Outlook 2016 (32-bit edition)
         Microsoft Outlook 2016 (64-bit edition)
         Microsoft SharePoint Enterprise Server 2013 Service Pack 1
         Microsoft SharePoint Enterprise Server 2016
         Microsoft Word 2007 Service Pack 3
         Microsoft Word 2010 Service Pack 2 (32-bit editions)
         Microsoft Word 2010 Service Pack 2 (64-bit editions)
         Microsoft Word 2013 RT Service Pack 1
         Microsoft Word 2013 Service Pack 1 (32-bit editions)
         Microsoft Word 2013 Service Pack 1 (64-bit editions)
         Microsoft Word 2016 (32-bit edition)
         Microsoft Word 2016 (64-bit edition)
         Word Automation Services


IMPACT

        Microsoft has given the following details regarding these 
        vulnerabilities.
        
         Details         Impact                   Severity
         ADV170017       Defense in Depth         None
         CVE-2017-11774  Security Feature Bypass  Important
         CVE-2017-11775  Elevation of Privilege   Important
         CVE-2017-11776  Information Disclosure   Important
         CVE-2017-11777  Elevation of Privilege   Important
         CVE-2017-11820  Elevation of Privilege   Important
         CVE-2017-11825  Remote Code Execution    Important
         CVE-2017-11826  Remote Code Execution    Important


MITIGATION

        Microsoft recommends updating the software with the version made 
        available on the Microsoft Update Cataloge for the following 
        Knowledge Base articles. [1]
        
        
         KB2553338, KB2837599, KB2920723, KB3213648, KB3213647
         KB3172524, KB3213630, KB3213659, KB3172531, KB3213623
         KB3213627, KB4011178, KB4011170, KB4011196, KB4011194
         KB4011068, KB4011222, KB4011157, KB4011236, KB4011162
         KB4011232, KB4011231, KB4011185, KB4011180, KB4011217


REFERENCES

        [1] Security Update Guide
            https://portal.msrc.microsoft.com/en-us/security-guidance

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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