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AUSCERT Security Bulletin
ASB-2021.0044
Microsoft Patch Tuesday update for Windows for February 2021
10 February 2021
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AusCERT Security Bulletin Summary
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Product: Windows 10
Windows 8.1
Windows RT 8.1
Windows Server
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-25195 CVE-2021-24106 CVE-2021-24103
CVE-2021-24102 CVE-2021-24098 CVE-2021-24096
CVE-2021-24094 CVE-2021-24093 CVE-2021-24091
CVE-2021-24088 CVE-2021-24086 CVE-2021-24084
CVE-2021-24083 CVE-2021-24082 CVE-2021-24081
CVE-2021-24080 CVE-2021-24079 CVE-2021-24078
CVE-2021-24077 CVE-2021-24076 CVE-2021-24075
CVE-2021-24074 CVE-2021-1734 CVE-2021-1732
CVE-2021-1731 CVE-2021-1727 CVE-2021-1722
CVE-2021-1698
OVERVIEW
Microsoft has released its monthly security patch update for the
month of February 2021.
This update resolves 28 vulnerabilities across the following
products: [1]
Windows 10
Windows 8.1
Windows RT 8.1
Windows Server
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2021-1698 Elevation of Privilege Important
CVE-2021-1722 Remote Code Execution Critical
CVE-2021-1727 Elevation of Privilege Important
CVE-2021-1731 Security Feature Bypass Important
CVE-2021-1732 Elevation of Privilege Important
CVE-2021-1734 Information Disclosure Important
CVE-2021-24074 Remote Code Execution Critical
CVE-2021-24075 Denial of Service Important
CVE-2021-24076 Information Disclosure Important
CVE-2021-24077 Remote Code Execution Critical
CVE-2021-24078 Remote Code Execution Critical
CVE-2021-24079 Information Disclosure Important
CVE-2021-24080 Denial of Service Moderate
CVE-2021-24081 Remote Code Execution Critical
CVE-2021-24082 Security Feature Bypass Important
CVE-2021-24083 Remote Code Execution Important
CVE-2021-24084 Information Disclosure Important
CVE-2021-24086 Denial of Service Important
CVE-2021-24088 Remote Code Execution Critical
CVE-2021-24091 Remote Code Execution Critical
CVE-2021-24093 Remote Code Execution Critical
CVE-2021-24094 Remote Code Execution Critical
CVE-2021-24096 Elevation of Privilege Important
CVE-2021-24098 Denial of Service Important
CVE-2021-24102 Elevation of Privilege Important
CVE-2021-24103 Elevation of Privilege Important
CVE-2021-24106 Information Disclosure Important
CVE-2021-25195 Elevation of Privilege 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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