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AUSCERT Security Bulletin
ASB-2020.0220
Microsoft Patch Tuesday update for Microsoft Office,
Microsoft Office Services and Web Apps for December 2020
9 December 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Office, Microsoft Office Services and Web Apps
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Increased Privileges -- Existing Account
Provide Misleading Information -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-17130 CVE-2020-17129 CVE-2020-17128
CVE-2020-17127 CVE-2020-17126 CVE-2020-17125
CVE-2020-17124 CVE-2020-17123 CVE-2020-17122
CVE-2020-17121 CVE-2020-17120 CVE-2020-17119
CVE-2020-17118 CVE-2020-17115 CVE-2020-17089
Member content until: Friday, January 8 2021
OVERVIEW
Microsoft has released its monthly security patch update for the
month of December 2020.
This update resolves 15 vulnerabilities across the following
products: [1]
Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Excel 2013 RT Service Pack 1
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Office 2016 (32-bit edition)
Microsoft Office 2016 (64-bit edition)
Microsoft Office 2019 for 32-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for Mac
Microsoft Office Online Server
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Office Web Apps 2013 Service Pack 1
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 PowerPoint 2010 Service Pack 2 (32-bit editions)
Microsoft PowerPoint 2010 Service Pack 2 (64-bit editions)
Microsoft PowerPoint 2013 RT Service Pack 1
Microsoft PowerPoint 2013 Service Pack 1 (32-bit editions)
Microsoft PowerPoint 2013 Service Pack 1 (64-bit editions)
Microsoft PowerPoint 2016 (32-bit edition)
Microsoft PowerPoint 2016 (64-bit edition)
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Server 2010 Service Pack 2
Microsoft SharePoint Server 2019
Office Online Server
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2020-17089 Elevation of Privilege Important
CVE-2020-17115 Spoofing Moderate
CVE-2020-17118 Remote Code Execution Critical
CVE-2020-17119 Information Disclosure Important
CVE-2020-17120 Information Disclosure Important
CVE-2020-17121 Remote Code Execution Critical
CVE-2020-17122 Remote Code Execution Important
CVE-2020-17123 Remote Code Execution Important
CVE-2020-17124 Remote Code Execution Important
CVE-2020-17125 Remote Code Execution Important
CVE-2020-17126 Information Disclosure Important
CVE-2020-17127 Remote Code Execution Important
CVE-2020-17128 Remote Code Execution Important
CVE-2020-17129 Remote Code Execution Important
CVE-2020-17130 Security Feature Bypass Important
MITIGATION
Microsoft recommends updating the software with the version made
available on the Microsoft Update Catalogue for the following
Knowledge Base articles. [1].
KB4486732, KB4486757, KB4484468, KB4486697, KB4486760
KB4486751, KB4486704, KB4486754, KB4486742, KB4493138
KB4486696, KB4486698, KB4486748, KB4493140, KB4493139
KB4493149, KB4486753, KB4486752, KB4493148, KB4484393
KB4486750, KB4486721, KB4484372
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.
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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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