Operating System:

[Win]

Published:

13 November 2019

Protect yourself against future threats.

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                         AUSCERT Security Bulletin

                               ASB-2019.0334
                    Security update for Exchange Server
                             13 November 2019

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

Product:              Exchange Server
Operating System:     Windows
Impact/Access:        Execute Arbitrary Code/Commands -- Existing Account
Resolution:           Patch/Upgrade
CVE Names:            CVE-2019-1373  
Member content until: Friday, December 13 2019

OVERVIEW

        Microsoft has released its monthly security patch update for the month
        of November 2019.
        
        This update resolves 1 vulnerabilities across the following products:
        [1]
        
         Microsoft Exchange Server 2013 Cumulative Update 23
         Microsoft Exchange Server 2016 Cumulative Update 13
         Microsoft Exchange Server 2016 Cumulative Update 14
         Microsoft Exchange Server 2019 Cumulative Update 2
         Microsoft Exchange Server 2019 Cumulative Update 3


IMPACT

        Microsoft has given the following details regarding these 
        vulnerabilities. [1]
        
         Details         Impact                   Severity
         CVE-2019-1373   Remote Code Execution    Critical


MITIGATION

        Microsoft recommends updating the software with the version made 
        available on the Microsoft Update Cataloge for the following 
        Knowledge Base articles. [1].
        
         KB4523171


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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