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                         AUSCERT Security Bulletin

                               ASB-2021.0046
       Microsoft Patch Tuesday update for Dynamics for February 2021
                             10 February 2021

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

Product:          Dynamics 365 Business Central 2019 Release Wave 2 (On-Premise)
                  Microsoft Dynamics 365 (on-premises) version 8.2
                  Microsoft Dynamics 365 (on-premises) version 9.0
                  Microsoft Dynamics 365 Business Central 2020 Release Wave 1
                  Microsoft Dynamics 365 Business Central 2020 Release Wave 2
                  Microsoft Dynamics NAV 2015
                  Microsoft Dynamics NAV 2016
                  Microsoft Dynamics NAV 2017
                  Microsoft Dynamics NAV 2018
Operating System: Windows
Impact/Access:    Provide Misleading Information -- Existing Account
                  Access Confidential Data       -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2021-24101 CVE-2021-1724 

OVERVIEW

        Microsoft has released its monthly security patch update for the
        month of February 2021.
        
        This update resolves 2 vulnerabilities across the following products:
        [1]
        
         Dynamics 365 Business Central 2019 Release Wave 2 (On-Premise)
         Microsoft Dynamics 365 (on-premises) version 8.2
         Microsoft Dynamics 365 (on-premises) version 9.0
         Microsoft Dynamics 365 Business Central 2020 Release Wave 1
         Microsoft Dynamics 365 Business Central 2020 Release Wave 2
         Microsoft Dynamics NAV 2015
         Microsoft Dynamics NAV 2016
         Microsoft Dynamics NAV 2017
         Microsoft Dynamics NAV 2018


IMPACT

        Microsoft has given the following details regarding these vulnerabilities.
        
         Details         Impact                   Severity
         CVE-2021-1724   Spoofing                 Important
         CVE-2021-24101  Information Disclosure   Important


MITIGATION

        Microsoft recommends updating the software to the latest available
        version available on the Microsoft Update Catalog. [1].


REFERENCES

        [1] Microsoft Security Update Guidance
            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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