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AUSCERT Security Bulletin
ASB-2020.0007
Security update for Microsoft Developer Tools
15 January 2020
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AusCERT Security Bulletin Summary
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Product: Microsoft Developer Tools
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-0646 CVE-2020-0606 CVE-2020-0605
CVE-2020-0603 CVE-2020-0602
Member content until: Friday, February 14 2020
Reference: ASB-2020.0006
OVERVIEW
Microsoft has released its monthly security patch update for the month
of January 2020.
This update resolves 6 vulnerabilities across the following products: [1]
.NET Core 3.0
.NET Core 3.1
ASP.NET Core 2.1
ASP.NET Core 3.0
ASP.NET Core 3.1
Microsoft .NET Framework 3.0 Service Pack 2
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2
Microsoft .NET Framework 3.5 AND 4.7.2
Microsoft .NET Framework 3.5 AND 4.8
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Microsoft .NET Framework 4.8
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2020-0602 Denial of Service Important
CVE-2020-0603 Remote Code Execution Critical
CVE-2020-0605 Remote Code Execution Critical
CVE-2020-0606 Remote Code Execution Critical
CVE-2020-0646 Remote Code Execution Critical
MITIGATION
Microsoft recommends updating the software with the version made
available on the Microsoft Update Catalogue for the following Knowledge
Base articles. [1]
KB4532935, KB4535101, KB4535103, KB4535102, KB4535105
KB4535104, KB4532933, KB4534271, KB4532938, KB4534306
KB4534977, KB4534976, KB4532936, KB4534276, KB4534293
KB4534979, KB4534978
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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