Microsoft security alert.

Advisory overview

Qualys Vulnerability R&D Lab has released new vulnerability checks in the Qualys Cloud Platform to protect organizations against 77 vulnerabilities that were fixed in 12 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 12 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:

• Microsoft Office and Microsoft Office Services and Web Apps Security Update May 2019

  Severity

  Critical 4

  Qualys ID

  110334

  Vendor Reference

  KB4464536, KB4464549, KB4464551, KB4464556, KB4464561, KB4464564, KB4464567, KB4464573

  CVE Reference

  CVE-2019-0945, CVE-2019-0946, CVE-2019-0947, CVE-2019-0949, CVE-2019-0950, CVE-2019-0951, CVE-2019-0952, CVE-2019-0953, CVE-2019-0956, CVE-2019-0957, CVE-2019-0958, CVE-2019-0963

  CVSS Scores

  Base 9.3 / Temporal 6.9

  Description

  Microsoft has released May 2019 security updates to fix multiple security vulnerabilities.

  This security update contains the following KBs:
  KB4464561
  KB4464551
  KB4464567
  KB4464564
  KB4464549
  KB4464573
  KB4464536
  KB4464556
  

  QID Detection Logic:
  This authenticated QID checks the file versions from above Microsoft KB article with the versions on affected office system.

  Note: for Office Click to Run , This QID only support "Semi-Annual Channel 1808" at this time.

  Consequence

  Successful exploitation allows an attacker to execute arbitrary code.

  Solution

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

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Microsoft Office and Microsoft Office Services and Web Apps Security Update May 2019

• Microsoft Team Foundation Server Update for May 2019

  Severity

  Critical 4

  Qualys ID

  91530

  Vendor Reference

  May Security Release

  CVE Reference

  CVE-2019-0872, CVE-2019-0971, CVE-2019-0979

  CVSS Scores

  Base 9 / Temporal 6.7

  Description

  The Microsoft Team Foundation Server update for May 2019 remediates the following vulnerabilities:
  CVE-2019-0872: cross site scripting (XSS) vulnerability in Test Plans
  CVE-2019-0971: information disclosure vulnerability in the Repos API
  CVE-2019-0979: cross site scripting (XSS) vulnerability in the User hub

  Affected Software:
  Azure DevOps Server 2019 Patch 2
  Team Foundation Server 2015 Update 4.2
  Team Foundation Server 2017 Update 3.1
  Team Foundation Server 2018 Update 1.2
  Team Foundation Server 2018 Update 3.2

  QID Detection Logic:
  This authenticated QID locates file versions via the HKLM\Software\Microsoft\TeamFoundationServer registry key. The following files are checked:
  TFS 2015 Update 4.2 Patch 1 - Microsoft.TeamFoundation.Framework.Server.dll - 14.114.28829.0
  TFS 2017 Update 3.1 Patch 5 - Microsoft.TeamFoundation.Framework.Server.dll - 15.117.28826.0
  TFS 2018 Update 1.2 Patch 4 - Microsoft.TeamFoundation.Server.WebAccess.Admin.dll - 16.122.28826.4
  TFS 2018 Update 3.2 Patch 4 - Microsoft.TeamFoundation.WorkItemTracking.Web.dll - 16.131.28826.3
  Azure DevOps Server 2019 Patch 2 - Microsoft.TeamFoundation.Server.WebAccess.VersionControl.dll - 17.143.28826.2

  Consequence

  Depending on the vulnerability being exploited, an attacker could conduct a cross-site scripting vulnerability or gain access to sensitive information.

  Solution

  Customers are advised to refer to May 2019 Security Release for more information pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  May Security Release

• Microsoft ASP.NET Core Denial Of Service Vulnerability May 2019 (DEPRECATED)

  Severity

  Serious 3

  Qualys ID

  91528

  Vendor Reference

  CVE-2019-0982

  CVE Reference

  CVE-2019-0982

  CVSS Scores

  Base 5 / Temporal 3.7

  Description

  A denial of service vulnerability exists when ASP.NET Core improperly handles web requests.

  A remote unauthenticated attacker can exploit this vulnerability by issuing specially crafted requests to the .NET Core application.

  QID Detection Logic (Authenticated):
  This QID checks for the vulnerable version of Microsoft.AspNetCore.App and Microsoft.AspNetCore.All
  NOTE: Marking this QID as deprecated as the affected file doesn't contains valid information about version, also in most cases it doesn't get installed with default installation type.

  Consequence

  An attacker who successfully exploited this vulnerability can cause a denial of service against an ASP.NET Core web application.

  Solution

  Microsoft has released a patch CVE-2019-0982

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  ASP.NET 2.1.11
  ASP.NET 2.2.5

• Microsoft Security Update for SQL Server for May 2019

  Severity

  Critical 4

  Qualys ID

  22004

  Vendor Reference

  CVE-2019-0819

  CVE Reference

  CVE-2019-0819

  CVSS Scores

  Base 4 / Temporal 3

  Description

  An information disclosure vulnerability exists in Microsoft SQL Server Analysis Services if it incorrectly enforces metadata permissions. To exploit this vulnerability, an authenticated attacker would need to submit a query to an affected Analysis Services database.

  The security update addresses the vulnerability by correcting how SQL Server Analysis Services enforces permissions.

  Affected Software:
  Microsoft SQL Server 2017 CU 14
  Microsoft SQL Server 2017 CU 14 GDR

  QID Detection Logic:
  This authenticated QID checks for vulnerable MSSQL versions lesser than

  Knowledge base articles:
  KB4494352
  KB4494351

  Consequence

  An attacker could exploit the vulnerability if the attacker's credentials allow access to an affected Analysis Services database.

  Solution

  Customers are advised to refer to CVE-2019-0819 for more information pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-0819

• Microsoft Windows Security Update for May 2019

  Severity

  Urgent 5

  Qualys ID

  91529

  Vendor Reference

  KB4494440, KB4494441, KB4499151, KB4499154, KB4499158, KB4499165, KB4499167, KB4499171, KB4499179, KB4499181

  CVE Reference

  CVE-2018-11091, CVE-2019-0707, CVE-2019-0725, CVE-2019-0727, CVE-2019-0733, CVE-2019-0734, CVE-2019-0758, CVE-2019-0863, CVE-2019-0881, CVE-2019-0882, CVE-2019-0885, CVE-2019-0886, CVE-2019-0889, CVE-2019-0890, CVE-2019-0891, CVE-2019-0892, CVE-2019-0893, CVE-2019-0894, CVE-2019-0895, CVE-2019-0896, CVE-2019-0897, CVE-2019-0898, CVE-2019-0899, CVE-2019-0900, CVE-2019-0901, CVE-2019-0902, CVE-2019-0903, CVE-2019-0931, CVE-2019-0936, CVE-2019-0942, CVE-2019-0961

  CVSS Scores

  Base 9.3 / Temporal 7.7

  Description

  Microsoft releases the security update for Windows May 2019

  The KB Articles associated with the update:
  KB4499179
  KB4499154
  KB4494440
  KB4499171
  KB4499167
  KB4499181
  KB4499165
  KB4499151
  KB4499158
  KB4494441
  

  QID Detection Logic:
  

  This QID checks for the file version of ntoskrnl.exe

  The following versions of ntoskrnl.exe with their corresponding KBs are verified:
  KB4494441 - 10.0.17763.503
  KB4499179 - 10.0.16299.1146
  KB4494440 - 10.0.14393.2969
  KB4499154 - 10.0.10240.18215
  KB4499171 - 6.2.9200.22753
  KB4499181 - 10.0.15063.1805
  KB4499158 - 6.2.9200.22753
  KB4499151 - 6.3.9600.19358
  KB4499165 - 6.3.9600.19358
  KB4499167 - 10.0.17134.765
  

  Consequence

  An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system.

  Solution

  Please refer to the Security Update Guide for more information pertaining to these vulnerabilities.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Microsoft Security Update Guide Windows

• Microsoft Windows Servicing Stack Security Update May 2019

  Severity

  Serious 3

  Qualys ID

  91533

  Vendor Reference

  N/A

  CVE Reference

  N/A

  CVSS Scores

  Base 5.1 / Temporal 3.8

  Description

  Microsoft has released Servicing Stack security updates for Windows 10 RTM, Windows 10 Version 1607/Server 2016, Windows 10 Version 1703, Windows 10 1709/Windows Server, version 1709, Windows 10 1803/Windows Server, version 1803, Windows 10 1809/Server 2019 and Windows 10 1903/Windows Server, version 1903.

  QID Detection Logic (Authenticated):
  Operating Systems: Windows 10 RTM, Windows 10 Version 1607/Server 2016, Windows 10 Version 1703, Windows 10 1709/Windows Server, version 1709, Windows 10 1803/Windows Server, version 1803, Windows 10 1809/Server 2019.

  
  This QID checks for following file versions %windir%\WinSxS\*microsoft-windows-servicingstack*\CbsCore.dll:
  The patch version of 10.0.10240.18210 (KB4498353)
  The patch version of 10.0.14393.2963 (KB4498947)
  The patch version of 10.0.15063.1802 (KB4500640)
  The patch version of 10.0.17763.503 (KB4499728)
  

  This QID checks for following file versions %windir%\WinSxS\*microsoft-windows-servicingstack*\wcp.dll:
  The patch version of 10.0.16299.1143 (KB4500641)
  The patch version of 10.0.17134.760 (KB4497398)

  Note: The QID currently does not support Windows 10 1903/Windows Server, version 1903.

  Consequence

  Successful exploitation allows attacker to compromise the system.

  Solution

  Customers are advised to refer to advisrory ADV990001for more information.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB4497398
  KB4498353
  KB4498947
  KB4499728
  KB4500109
  KB4500640
  KB4500641

• Microsoft .NET Framework and .NET Core Denial of Service Vulnerability May 2019

  Severity

  Serious 3

  Qualys ID

  91531

  Vendor Reference

  KB4494440, KB4495610, KB4495611, KB4495613, KB4495616, KB4495620, KB4498961, KB4498962, KB4498963, KB4498964, KB4499154, KB4499167, KB4499179, KB4499181, KB4499405, KB4499406, KB4499407, KB4499408, KB4499409

  CVE Reference

  CVE-2019-0820, CVE-2019-0864, CVE-2019-0980, CVE-2019-0981

  CVSS Scores

  Base 5 / Temporal 3.7

  Description

  A denial of service vulnerability exists when .NET Framework or .NET Core improperly handle web requests.
  A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings.
  A denial of service vulnerability exists when .NET Framework improperly handles objects in heap memory.
  KB4499407,KB4498962,KB4499406,KB4498961,KB4499408,KB4498963,KB4499409,KB4498964,KB4499154,KB4499167,KB4499405,KB4494440,KB4499181,KB4499179,KB4495610,KB4495611,KB4495613,KB4495616,KB4495620

  This security update is rated Important for supported versions of Microsoft .NET Framework and .NET Core.

  QID Detection Logic (Authenticated):
  This QID checks for the vulnerable file version of system.dll for .Net Framework
  This QID checks for the vulnerable file version of dotnet.dll for .net core sdk
  This QID checks for the vulnerable version of Microsoft.NETCore.App under default directory for .version file.
  

  Consequence

  An attacker who successfully exploited this vulnerability can cause a denial of service against a .NET application.

  Solution

  Customers are advised to refer to CVE-2019-0980, CVE-2019-0981, CVE-2019-0820, CVE-2019-0864 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  .NET CORE 2.1
  .NET CORE 2.2

• Microsoft Edge Security Update for May 2019

  Severity

  Critical 4

  Qualys ID

  91527

  Vendor Reference

  KB4494440, KB4494441, KB4497936, KB4499154, KB4499167, KB4499179, KB4499181

  CVE Reference

  CVE-2019-0884, CVE-2019-0911, CVE-2019-0912, CVE-2019-0913, CVE-2019-0914, CVE-2019-0915, CVE-2019-0916, CVE-2019-0917, CVE-2019-0922, CVE-2019-0923, CVE-2019-0924, CVE-2019-0925, CVE-2019-0926, CVE-2019-0927, CVE-2019-0933, CVE-2019-0937, CVE-2019-0938, CVE-2019-0940

  CVSS Scores

  Base 7.6 / Temporal 6.3

  Description

  Microsoft releases the security update for Microsoft Edge May 2019

  The KB Articles associated with the update:
  KB4497936
  KB4499154
  KB4499181
  KB4499167
  KB4494441
  KB4499179
  KB4494440
  

  QID Detection Logic:
  

  This QID checks for the file version of edgehtml.dll

  The following versions of edgehtml.dll with their corresponding KBs are verified:
  KB4494441 - 11.0.17763.503
  KB4499179 - 11.0.16299.1146
  KB4494440 - 11.0.14393.2969
  KB4499154 - 11.0.10240.18215
  KB4499181 - 11.0.15063.1805
  KB4499167 - 11.0.17134.765
  

  Consequence

  The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

  Solution

  Please refer to the Security Update Guide for more information pertaining to these vulnerabilities.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Microsoft Security Update Guide Windows

• Microsoft Visual Studio Security Update for May 2019

  Severity

  Critical 4

  Qualys ID

  91526

  Vendor Reference

  CVE-2019-0727

  CVE Reference

  CVE-2019-0727

  CVSS Scores

  Base 7.2 / Temporal 5.3

  Description

  Microsoft Visual Studio contains the following vulnerabilities:
  CVE-2019-0727: An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector Service improperly performs certain file operations.

  KB Articles associated with this update is: KB4489639

  Affected Software:
  Microsoft Visual Studio 2017 version 15.0
  Microsoft Visual Studio 2015 Update 3
  Microsoft Visual Studio 2017 version 15.9
  Microsoft Visual Studio 2019 version 16.0

  QID Detection Logic:
  This QID detects vulnerable versions of Microsoft Visual Studio by reviewing the file version of devenv.exe or StandardCollector.Service.exe on all instances of Visual Studio.

  Consequence

  An attacker who successfully exploited this vulnerability could delete files in arbitrary locations.

  Solution

  Customers are advised to refer to CVE-2019-0727 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-0727

• Microsoft Internet Explorer Security Update for May 2019

  Severity

  Critical 4

  Qualys ID

  100371

  Vendor Reference

  KB4494440, KB4494441, KB4497936, KB4498206, KB4499149, KB4499151, KB4499154, KB4499164, KB4499167, KB4499171, KB4499179, KB4499181

  CVE Reference

  CVE-2019-0884, CVE-2019-0911, CVE-2019-0918, CVE-2019-0921, CVE-2019-0929, CVE-2019-0930, CVE-2019-0940, CVE-2019-0995

  CVSS Scores

  Base 7.6 / Temporal 6.3

  Description

  Microsoft releases the security update for Internet Explorer May 2019

  The KB Articles associated with the update:
  KB4499179
  KB4499149
  KB4494440
  KB4499154
  KB4497936
  KB4499171
  KB4499181
  KB4499151
  KB4498206
  KB4499167
  KB4499164
  KB4494441
  

  QID Detection Logic:
  

  This QID checks for the file version of Mshtml.dll

  The following versions of Mshtml.dll with their corresponding KBs are verified:
  KB4498206 - 10.0.9200.22750 , 9.0.8112.21333 , 11.0.9600.19354
  KB4499164 - 11.0.9600.19355
  KB4494441 - 11.0.17763.503
  KB4499149 - 9.0.8112.21334
  KB4499179 - 11.0.16299.1146
  KB4494440 - 11.0.14393.2969
  KB4499167 - 11.0.17134.765
  KB4499154 - 11.0.10240.18215
  KB4499171 - 10.0.9200.22752
  KB4499181 - 11.0.15063.1805
  KB4499151 - 11.0.9600.19355
  

  Consequence

  The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

  Solution

  Please refer to the Security Update Guide for more information pertaining to these vulnerabilities.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  Microsoft Security Update Guide Windows

• Microsoft Windows Adobe Flash Player Security Update for May 2019 (ADV190012)

  Severity

  Urgent 5

  Qualys ID

  100370

  Vendor Reference

  ADV190012

  CVE Reference

  CVE-2019-7837

  CVSS Scores

  Base 9.3 / Temporal 6.9

  Description

  The update contains security fixes for Adobe Flash Player on Internet Explorer.

  Affected Versions:
  Windows 8 Embedded, Windows 10 Version 1803, Windows Server 2016, Windows 10 Version 1709, Windows 10 Version 1809, Windows 10 Version 1703, Windows 10 Version 1607, Windows 10, Windows Server 2012 R2, Windows 8.1, Windows RT 8.1, Windows Server 2019 and Windows Server 2012 with Adobe Flash Player version prior to 32.0.0.192.

  QID Detection Logic:
  This authenticated QID will flag if file version of %windir%\System32\Macromed\Flash\Flash.ocx is less than or equal to 32.0.0.192.

  Consequence

  Successful exploitation of the vulnerability will lead to information disclosure or arbitrary code execution.

  Solution

  Customers are advised to follow 4497932 for instructions pertaining to the remediation of this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB4497932 Windows

• Microsoft Dynamics 365 Security Update for May 2019

  Severity

  Critical 4

  Qualys ID

  91532

  Vendor Reference

  CVE-2019-1008

  CVE Reference

  CVE-2019-1008

  CVSS Scores

  Base 4.3 / Temporal 3.2

  Description

  A security feature bypass vulnerability exists in Dynamics On Premise. To exploit the vulnerability, an attacker would need to capture and edit the POST request to include a special character in the extension. The update addresses the vulnerability by blocking files with the special character in the file extension.

  Affected Software:
  Microsoft Dynamics CRM 2015 (on-premises) version 7.0
  Microsoft Dynamics 365 (on-premises) version 8.2
  Microsoft Dynamics 365 (on-premises) version 9.0

  QID Detection Logic:
  This QID detects vulnerable versions by checking if the version of Microsoft.Crm.Setup.Server.exe is lesser than:
  Microsoft Dynamics CRM 2015 (on-premises) version 7.0 - 7.0.3.147
  Microsoft Dynamics 365 (on-premises) version 8.2 - 8.2.6.19
  Microsoft Dynamics 365 (on-premises) version 9.0 - 9.0.4.5

  Knowledge base articles:
  KB4494412
  KB4498363
  KB4499386

  Consequence

  An attacker who exploited the vulnerability could send attachment types that are blocked by the email attachment system.

  Solution

  Customers are advised to refer to CVE-2019-1008 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-1008

Access for Qualys Customers

Platforms and Platform Identification

Technical Support

For more information, customers may contact Qualys Technical Support.

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