Microsoft security alert.

Advisory overview

Qualys Vulnerability R&D Lab has released new vulnerability checks in the Qualys Cloud Platform to protect organizations against 55 vulnerabilities that were fixed in 16 bulletins announced today by Microsoft. Customers can immediately audit their networks for these and other new vulnerabilities by accessing their Qualys subscription. Visit Qualys Security Blog to prioritize remediation.

Non-Qualys customers can audit their network for these and other vulnerabilities by signing up for a Qualys Free Trial, or by trying Qualys Community Edition.

Vulnerability details

Microsoft has released 16 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:

• Microsoft Office Security Update for September 2023

  Severity

  Critical 4

  Qualys ID

  110446

  Vendor Reference

  5002100, 5002457, 5002470, 5002477, 5002483, 5002488, 5002496, 5002497, 5002498

  CVE Reference

  CVE-2023-36761, CVE-2023-36762, CVE-2023-36764, CVE-2023-36765, CVE-2023-36766, CVE-2023-36767, CVE-2023-41764

  CVSS Scores

  Base 7.2 / Temporal 6

  Description

  Microsoft has released September 2023 security updates to fix multiple security vulnerabilities.

  This security update contains the following:

  Office Click-2-Run and Office 365 Release Notes
  KB5002477
  KB5002457
  KB5002498
  KB5002100
  KB5002488
  KB5002496
  KB5002470
  KB5002483
  KB5002497
  QID Detection Logic (Authenticated):
  Operating System: Windows
  The detection extracts the Install Path for Microsoft Office via the Windows Registry. The QID checks the file version of "graph.exe" to identify vulnerable versions of Microsoft Office.
  Patched Versions for Microsoft 365 (C2R) are:
  Current Channel: Version 2308 (Build 16731.20234)
  Monthly Enterprise Channel: Version 2307 (Build 16626.20208)
  Monthly Enterprise Channel: Version 2306 (Build 16529.20254)
  Semi-Annual Enterprise Channel (Preview): Version 2308 (Build 16731.20234)
  Semi-Annual Enterprise Channel: Version 2302 (Build 16130.20766)
  Semi-Annual Enterprise Channel: Version 2208 (Build 15601.20772)
  Office 2021 Retail: Version 2308 (Build 16731.20234)
  Office 2019 Retail: Version 2308 (Build 16731.20234)
  Office 2016 Retail: Version 2308 (Build 16731.20234)
  Office LTSC 2021 Volume Licensed: Version 2108 (Build 14332.20565)
  Office 2019 Volume Licensed: Version 1808 (Build 10402.20023)
  

  Note: Office click-2-run and Office 365 installations need to be updated manually or need to be set to automatic update. There is no direct download for the patch.

  Consequence

  Vulnerable products may be prone to one or all of these vulnerabilities: Remote Code Execution, Elevation of Privilege, Spoofing, Security Feature Bypass and Information Disclosure.

  Solution

  Customers are advised to refer to these KB Articles:
  KB5002477
  KB5002457
  KB5002498
  KB5002100
  KB5002488
  KB5002496
  KB5002470
  KB5002483
  KB5002497
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Microsoft office September 2023

• Microsoft Outlook Information Disclosure Vulnerability for September 2023

  Severity

  Critical 4

  Qualys ID

  110447

  Vendor Reference

  5002499

  CVE Reference

  CVE-2023-36763

  CVSS Scores

  Base 7.8 / Temporal 5.8

  Description

  Microsoft has released September 2023 security updates for outlook to fix an Information Disclosure Vulnerability.

  This security update contains the following KBs:
  KB5002499
  

  QID Detection Logic:
  This authenticated QID checks the file versions from the Microsoft advisory with the versions on affected outlook applications.

  Consequence

  Successful exploitation will lead to an Information Disclosure Vulnerability.

  Solution

  Refer to Microsoft Security Guide, and KB5002499
  for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  September 2023

• Microsoft SharePoint Server Security Update for September 2023

  Severity

  Critical 4

  Qualys ID

  110448

  Vendor Reference

  5002472, 5002474, 5002494, 5002501

  CVE Reference

  CVE-2023-36762, CVE-2023-36764

  CVSS Scores

  Base 9 / Temporal 6.7

  Description

  Microsoft has released September 2023 security updates security updates to fix multiple security vulnerabilities.

  This security update contains the following KBs:

  KB5002494
  KB5002501
  KB5002474
  KB5002472

  QID Detection Logic (Authenticated):
  Operating System: Windows
  

  Consequence

  Successful exploitation allows an atacker to perform Remote Code Execution and/or Privilege Escalation Vulnerabilities.

  Solution

  Refer to Microsoft Security Guidance for more details pertaining to this vulnerability.

  KB5002494
  KB5002501
  KB5002474
  KB5002472
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  September 2023

• Microsoft Visual Studio Code Security Update for September 2023

  Severity

  Serious 3

  Qualys ID

  378852

  Vendor Reference

  CVE-2023-39956

  CVE Reference

  CVE-2023-39956

  CVSS Scores

  Base 4.3 / Temporal 3.2

  Description

  Visual Studio Code is a lightweight but powerful source code editor which runs on your desktop and is available for Windows, macOS and Linux.

  Affected Versions:
  Visual studio code prior to version 1.82.1

  QID Detection Logic(Authenticated):
  This QID checks for the vulnerable versions of Visual Studio Code.
  

  Consequence

  Visual Studio Code is prone to Remote Code Execution Vulnerability
  

  Solution

  Customers are advised to refer to CVE-2023-39956 for more information pertaining to this vulnerability.
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-39956

• Microsoft Exchange Server Multiple Vulnerabilities for September 2023

  Severity

  Critical 4

  Qualys ID

  50129

  Vendor Reference

  5030524

  CVE Reference

  CVE-2023-36744, CVE-2023-36745, CVE-2023-36756, CVE-2023-36757, CVE-2023-36777

  CVSS Scores

  Base 5.8 / Temporal 4.3

  Description

  Microsoft Exchange Server 2016 and 2019 are affected by multiple vulnerabilities.

  KB Articles associated with this update are: KB5030524

  Affected Versions:
  Microsoft Exchange Server 2016 Cumulative Update 23
  Microsoft Exchange Server 2019 Cumulative Update 12
  Microsoft Exchange Server 2019 Cumulative Update 13
  

  QID Detection Logic (Authenticated):
  The QID checks for vulnerable version of Microsoft Exchange Server by checking the file version of Exsetup.exe.

  Consequence

  Successful exploitation of the vulnerability may allow remote code execution and spoofing

  Solution

  Microsoft has released patch, customers are advised to refer to KB5030524 for information pertaining to this vulnerability.
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB5030524

• Microsoft Dynamics 365 Security Update for September 2023

  Severity

  Critical 4

  Qualys ID

  92055

  Vendor Reference

  CVE-2023-36886, CVE-2023-38164

  CVE Reference

  CVE-2023-36886, CVE-2023-38164

  CVSS Scores

  Base 5.5 / Temporal 4.1

  Description

  Microsoft Dynamics 365 is a product line of enterprise resource planning and customer relationship management intelligent business applications.

  Affected Software:
  Microsoft Dynamics 365 (on-premises) prior to 9.0.49.4

  Microsoft Dynamics 365 (on-premises) prior to 9.1.21.5

  QID Detection Logic(Authenticated):
  This authenticated QID flags vulnerable systems by detecting Vulnerable versions for file Microsoft.Crm.Setup.Server.exe:
  

  Consequence

  Successful exploitation of this vulnerability could lead to a Cross-site Scripting Vulnerability

  Solution

  Customers are advised to refer to 5029396 and 5030608 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB5029396
  KBKB5030608

• Azure DevOps Server Security Update for September 2023

  Severity

  Critical 4

  Qualys ID

  92056

  Vendor Reference

  CVE-2023-33136, CVE-2023-38155

  CVE Reference

  CVE-2023-33136, CVE-2023-38155

  CVSS Scores

  Base 6.8 / Temporal 5

  Description

  Azure DevOps Server is a Microsoft product that provides version control, reporting, requirements management, project management, automated builds, testing, and release management capabilities.
  CVE-2023-38155: Azure DevOps Server and Team Foundation Server Elevation of Privilege Vulnerability.

  CVE-2023-33136: Azure DevOps Server Remote Code Execution Vulnerability.

  Affected Software:
  Azure DevOps Server 2020.0.2
  Azure DevOps Server 2019.1.2
  Azure DevOps Server 2020.1.2
  Azure DevOps Server 2022.0.1
  Azure DevOps Server 2019.0.1

  QID Detection Logic(Authenticated):
  This authenticated QID flags vulnerable systems by detecting Vulnerable versions for file Microsoft.TeamFoundation.Framework.Server.dll.
  

  Consequence

  An attacker who successfully exploited this vulnerability could gain administrator privileges.

  Solution

  Customers are advised to refer to CVE-2023-38155, CVE-2023-33136 for more details.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-33136
  CVE-2023-38155

• Microsoft Windows Security Update for September 2023

  Severity

  Critical 4

  Qualys ID

  92057

  Vendor Reference

  KB5030209, KB5030211, KB5030213, KB5030214, KB5030216, KB5030217, KB5030219, KB5030220, KB5030261, KB5030265, KB5030269, KB5030271, KB5030278, KB5030279, KB5030286, KB5030287, KB5030325

  CVE Reference

  CVE-2023-35355, CVE-2023-36801, CVE-2023-36802, CVE-2023-36803, CVE-2023-36804, CVE-2023-36805, CVE-2023-38139, CVE-2023-38140, CVE-2023-38141, CVE-2023-38142, CVE-2023-38143, CVE-2023-38144, CVE-2023-38146, CVE-2023-38147, CVE-2023-38148, CVE-2023-38149, CVE-2023-38150, CVE-2023-38152, CVE-2023-38160, CVE-2023-38161, CVE-2023-38162

  CVSS Scores

  Base 8.3 / Temporal 6.9

  Description

  Microsoft Windows Security Update - September 2023

  The Patch Version is 10.0.14393.62525030213
  The Patch Version is 10.0.19041.34485030211
  The Patch Version is 10.0.22621.22835030219
  The Patch Version is 10.0.22000.24165030217
  The Patch Version is 10.0.20348.19705030216
  The Patch Version is 10.0.17763.48515030214
  The Patch Version is 6.3.9600.215635030269
  The Patch Version is 6.3.9600.215635030287
  The Patch Version is 6.2.9200.244625030278
  The Patch Version is 6.2.9200.244625030279
  The Patch Version is 6.1.7601.267135030265
  The Patch Version is 6.1.7601.267135030261
  The Patch Version is 6.0.6003.222645030271
  The Patch Version is 6.0.6003.222645030286
  The Patch Version is 10.0.10240.201615030220
  QID Detection Logic (Authenticated):
  

  This QID checks for the file version of 'ntoskrnl.exe'. Note: This QID checks for windows Server 2022 Azuro Hotpatch through below registry key
  HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Update\TargetingInfo\DynamicInstalled\Hotpatch.amd64

  Consequence

  Successful exploit could compromise Confidentiality, Integrity and Availability

  Solution

  Please refer to the following KB Articles associated with the update:
  5030213
  5030211
  5030219
  5030217
  5030216
  5030214
  5030269
  5030287
  5030278
  5030279
  5030265
  5030261
  5030271
  5030286
  5030220
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB5030211
  KB5030213
  KB5030214
  KB5030216
  KB5030217
  KB5030219
  KB5030220
  KB5030261
  KB5030265
  KB5030269
  KB5030271
  KB5030278
  KB5030279
  KB5030286
  KB5030287

• Microsoft Windows Defender Attack Surface Reduction Security Feature Bypass Vulnerability for September 2023

  Severity

  Critical 4

  Qualys ID

  92058

  Vendor Reference

  CVE-2023-38163

  CVE Reference

  CVE-2023-38163

  CVSS Scores

  Base 4.6 / Temporal 3.4

  Description

  Microsoft Defender is prone to Attack Surface Reduction Security Feature Bypass Vulnerability Affected Software:
  Microsoft Defender Security Intelligence Updates

  Affected Version:
  Windows Defender prior to build 1.391.1332.0
  QID Detection Logic (Authenticated):
  The authenticated check looks for a vulnerable version of file under system32 directory MpSigStub.exe
  

  Consequence

  An attacker who successfully exploited this vulnerability could bypass the Windows Defender Attack Surface Reduction blocking feature.

  Solution

  Users are advised to check CVE-2023-38163 for more information.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-38163

• Microsoft .NET Framework Update for September 2023

  Severity

  Serious 3

  Qualys ID

  92059

  Vendor Reference

  5029921, 5029924, 5030178, 5030179, 5030180, 5030181, 5030182, 5030183, 5030184, 5030185, 5030186

  CVE Reference

  CVE-2023-36788, CVE-2023-36792, CVE-2023-36793, CVE-2023-36794, CVE-2023-36796

  CVSS Scores

  Base 6.8 / Temporal 5

  Description

  A Remote Code Execution Vulnerability exist in Microsoft .Net Framework.

  Following KBs are covered in this detection:
  5030186
  5030178
  5030182
  5030184
  5030183
  5030185
  5030180
  5029921
  5030179
  5030181
  5029924
  

  This security update is rated Important for supported versions of Microsoft .NET Framework.
  .NET Framework 2.0, 3.0, 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, and 4.8.1

  QID Detection Logic (Authenticated):
  Checks for vulnerable file version of ntoskrnl.exe or Mscorlib.dll or System.core.dll or System.web.dll for the respective .Net Framework KBs
  

  Consequence

  Successful exploitation may allow a attacker to perform Remote Code Execution and/or Elevation of Privileges.
  

  Solution

  Customers are advised to refer to CVE-2023-36788, CVE-2023-36792, CVE-2023-36793, CVE-2023-36794 and CVE-2023-36796 for more details pertaining to these vulnerabilities.
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36788
  CVE-2023-36792
  CVE-2023-36793
  CVE-2023-36794
  CVE-2023-36796

• Microsoft Visual Studio Security Updates for September 2023 (CVE-2023-36758)

  Severity

  Critical 4

  Qualys ID

  92060

  Vendor Reference

  CVE-2023-36758

  CVE Reference

  CVE-2023-36758

  CVSS Scores

  Base 8.7 / Temporal 6.4

  Description

  Microsoft has released security Updates for Visual Studio which resolve Security Feature Bypass and Escalation of Privileges Vulnerabilities.

  Affected Software:
  Microsoft Visual Studio 2022 version 17.7
  

  QID Detection Logic: Authenticated : Windows
  This QID detects vulnerable versions of Microsoft Visual Studio by checking the registry key "HKLM\SOFTWARE\Microsoft" and file "evenv.exe" to check the version of the Visual Studio.
  

  Consequence

  An attacker who successfully exploited this vulnerability could elevate privileges to SYSTEM assigned integrity level.

  Solution

  Customers are advised to refer to CVE-2023-36758 for more information on these vulnerabilities and their patches.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36758

• Microsoft 3D Viewer Remote Code Execution (RCE) Vulnerability - September 2023

  Severity

  Critical 4

  Qualys ID

  92061

  Vendor Reference

  CVE-2023-36739, CVE-2023-36740, CVE-2023-36760

  CVE Reference

  CVE-2023-36739, CVE-2023-36740, CVE-2023-36760

  CVSS Scores

  Base 4.6 / Temporal 3.4

  Description

  Microsoft 3D Viewer is prone to Remote Code Execution Vulnerability.

  Affected Versions:
  Microsoft 3D-Viewer App package versions prior to 7.2306.12012.0

  QID Detection Logic (Authenticated):
  The detection gets the version of Microsoft.Microsoft3DViewer by querying wmi class Win32_InstalledStoreProgram.

  Consequence

  Successful exploitation allows an attacker to execute code remotely.
  

  Solution

  Users are advised to check CVE-2023-36739,CVE-2023-36740 for more information.

  ,CVE-2023-36760 for more information.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36739
  CVE-2023-36740
  CVE-2023-36760

• Microsoft Visual Studio Security Updates for September 2023 (CVE-2023-36759)

  Severity

  Serious 3

  Qualys ID

  92062

  Vendor Reference

  CVE-2023-36759

  CVE Reference

  CVE-2023-36759

  CVSS Scores

  Base 6.5 / Temporal 4.8

  Description

  Microsoft has released security Updates for Visual Studio which resolve Security Feature Bypass and Escalation of Privileges Vulnerabilities.

  Affected Software:
  Microsoft Visual Studio 2022 version 17.6
  Microsoft Visual Studio 2022 version 17.7
  Microsoft Visual Studio 2022 version 17.4
  Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)
  Microsoft Visual Studio 2022 version 17.2

  QID Detection Logic: Authenticated : Windows
  This QID detects vulnerable versions of Microsoft Visual Studio by checking the registry key "HKLM\SOFTWARE\Microsoft" and file "evenv.exe" to check the version of the Visual Studio.
  

  Consequence

  An attacker who successfully exploited this vulnerability could elevate privileges to SYSTEM assigned integrity level.

  Solution

  Customers are advised to refer to CVE-2023-36759 for more information on these vulnerabilities and their patches.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36759

• Microsoft 3D Builder Remote Code Execution (RCE) Vulnerability - September 2023

  Severity

  Critical 4

  Qualys ID

  92063

  Vendor Reference

  CVE-2023-36770, CVE-2023-36771, CVE-2023-36772, CVE-2023-36773

  CVE Reference

  CVE-2023-36770, CVE-2023-36771, CVE-2023-36772, CVE-2023-36773

  CVSS Scores

  Base 4.6 / Temporal 3.4

  Description

  3D Builder is an application to View, Create, and Personalize 3D objects.
  Microsoft has released a security update to 3D Builder Application to address a remote code execution vulnerability.

  Affected Versions:
  3D Builder Version prior to 20.0.4.0

  QID Detection Logic:
  This QID gets the version of 3D Builder by querying wmi class Win32_InstalledStoreProgram.

  Consequence

  Successful exploitation allows an attacker to execute code remotely.
  

  Solution

  Users are advised to check CVE-2023-36770,CVE-2023-36771 for more information.

  ,CVE-2023-36772 for more information.

  ,CVE-2023-36773 for more information.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36770
  CVE-2023-36771
  CVE-2023-36772
  CVE-2023-36773

• Microsoft .NET Security Update for September 2023

  Severity

  Serious 3

  Qualys ID

  92064

  Vendor Reference

  CVE-2023-36792, CVE-2023-36793, CVE-2023-36794, CVE-2023-36796, CVE-2023-36799

  CVE Reference

  CVE-2023-36792, CVE-2023-36793, CVE-2023-36794, CVE-2023-36796, CVE-2023-36799

  CVSS Scores

  Base 6.8 / Temporal 5

  Description

  Microsoft has released a security Update for .NET which resolves Remote Code Execution, and Denial of Service vulnerabilities.

  Affected versions:
  .NET 6.0 before version 6.0.22
  .NET 7.0 before version 7.0.11
  

  QID Detection Logic: Authenticated
  On Windows, this QID detects vulnerable versions of Microsoft .NET by checking the file version.
  On Linux, this QID detects vulnerable versions of Microsoft .NET by checking the .NET version present in "/usr/share/dotnet/shared/Microsoft.NETCore.App/" and "/root/shared/Microsoft.NETCore.App" folders.
  On Mac, this QID detects vulnerable versions of Microsoft .NET by checking the .NET version present in "/usr/share/dotnet/shared/Microsoft.NETCore.App/" folder.
  

  Consequence

  Vulnerable versions of Microsoft .NET are prone to Remote Code Execution, and Denial of Service vulnerabilities.

  Solution

  Customers are advised to refer to CVE-2023-36799, CVE-2023-36792, CVE-2023-36793, CVE-2023-36794 and CVE-2023-36796 for more details pertaining to these vulnerabilities.
  

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2023-36792
  CVE-2023-36793
  CVE-2023-36794
  CVE-2023-36796
  CVE-2023-36799

• Microsoft Azure Stack Hub Security Updates for September 2023

  Severity

  Critical 4

  Qualys ID

  92065

  Vendor Reference

  Azure Stack Hub

  CVE Reference

  CVE-2023-35355, CVE-2023-36801, CVE-2023-36802, CVE-2023-36803, CVE-2023-36804, CVE-2023-36805, CVE-2023-38139, CVE-2023-38140, CVE-2023-38141, CVE-2023-38142, CVE-2023-38143, CVE-2023-38144, CVE-2023-38147, CVE-2023-38149, CVE-2023-38152, CVE-2023-38160, CVE-2023-38161, CVE-2023-38162

  CVSS Scores

  Base 6.2 / Temporal 5.1

  Description

  Azure Stack Hub is an extension of Azure that provides a way to run apps in an on-premises environment and deliver Azure services in your datacenter.

  A complete Qualys vulnerability scan report for Microsoft Azure Stack Hub can be obtained at Azure Stack Vulnerability Scan Report.

  QID Detection Logic (Authenticated):
  This QID checks for the file version of ntoskrnl.exe, if this file version is less than , it is considered as vulnerable.
  

  Consequence

  Successful exploit could compromise Confidentiality, Integrity and Availability

  Solution

  Customers are encouraged to connect with Microsoft for obtaining more information about patches and upcoming releases.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Azure Stack Hub

Access for Qualys Customers

Platforms and Platform Identification

Technical Support

For more information, customers may contact Qualys Technical Support.

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