Microsoft security alert.

Advisory overview

Qualys Vulnerability R&D Lab has released new vulnerability checks in the Enterprise TruRisk Platform to protect organizations against 75 vulnerabilities that were fixed in 10 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 10 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:

• Microsoft Internet Explorer Security Update for July 2019

  Severity

  Critical 4

  Qualys ID

  100374

  Vendor Reference

  KB4507434, KB4507435, KB4507448, KB4507449, KB4507450, KB4507452, KB4507453, KB4507455, KB4507458, KB4507460, KB4507462, KB4507469

  CVE Reference

  CVE-2019-1001, CVE-2019-1004, CVE-2019-1056, CVE-2019-1059, CVE-2019-1063, CVE-2019-1104

  CVSS Scores

  Base 7.6 / Temporal 5.6

  Description

  Microsoft releases the security update for Internet Explorer July 2019

  The KB Articles associated with the update:
  KB4507449
  KB4507458
  KB4507452
  KB4507435
  KB4507460
  KB4507448
  KB4507453
  KB4507450
  KB4507462
  KB4507455
  KB4507434
  KB4507469
  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:
  KB4507449 - 11.0.9600.19400
  KB4507458 - 11.0.10240.18275
  KB4507452 - 9.0.8112.21352
  KB4507435 - 11.0.17134.885
  KB4507460 - 11.0.14393.3085
  KB4507448 - 11.0.9600.19400
  KB4507453 - 11.0.18362.239
  KB4507450 - 11.0.15063.1928
  KB4507462 - 10.0.9200.22799
  KB4507455 - 11.0.16299.1268
  KB4507434 - 11.0.9600.19400 , 9.0.8112.21352 , 10.0.9200.22799
  KB4507469 - 11.0.17763.615
  

  Consequence

  An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected 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 Office and Microsoft Office Services and Web Apps Security Update July 2019

  Severity

  Critical 4

  Qualys ID

  110336

  Vendor Reference

  KB4018375, KB4461539, KB4462224, KB4464534, KB4464543, KB4464558, KB4464565, KB4464572, KB4464592, KB4475509, KB4475510, KB4475513, KB4475514, KB4475517, KB4475519, KB4475520, KB4475522, KB4475527, KB4475529, KB4475545

  CVE Reference

  CVE-2019-1006, CVE-2019-1084, CVE-2019-1109, CVE-2019-1110, CVE-2019-1111, CVE-2019-1112, CVE-2019-1134

  CVSS Scores

  Base 9.3 / Temporal 6.9

  Description

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

  This security update contains the following KBs:
  KB4475527
  KB4475520
  KB4475522
  KB4475510
  KB4475529
  KB4464558
  KB4475514
  KB4475517
  KB4475509
  KB4475545
  KB4475519
  KB4464592
  KB4018375
  KB4464534
  KB4464572
  KB4475513
  KB4464565
  KB4464543
  KB4461539
  KB4462224

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

  Note: The QID does not check for the NuGet package for Microsoft.IdentityModel.dll as required to fully patch CVE-2019-1006 on Sharepoint.

  Consequence

  Successful exploitation allows an attacker to execute code remotely.

  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 July 2019

• Microsoft Security Update for SQL Server for July 2019

  Severity

  Critical 4

  Qualys ID

  20116

  Vendor Reference

  CVE-2019-1068

  CVE Reference

  CVE-2019-1068

  CVSS Scores

  Base 6.5 / Temporal 5.4

  Description

  A remote code execution vulnerability exists in Microsoft SQL Server when it incorrectly handles processing of internal functions. To exploit the vulnerability, an authenticated attacker would need to submit a specially crafted query to an affected SQL server.
  The security update addresses the vulnerability by modifying how the Microsoft SQL Server Database Engine handles the processing of functions.

  Affected Software:
  Microsoft SQL Server 2014 Service Pack 2
  Microsoft SQL Server 2014 Service Pack 3
  Microsoft SQL Server 2016 Service Pack 1
  Microsoft SQL Server 2016 Service Pack 2
  Microsoft SQL Server 2017

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

  Knowledge base articles:
  KB4505217, KB4505218, KB4505219, KB4505220, KB4505221, KB4505222, KB4505224, KB4505225

  Consequence

  An attacker who successfully exploited this vulnerability could execute code in the context of the SQL Server Database Engine service account.

  Solution

  Customers are advised to refer to CVE-2019-1068 for more information pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-1068

• Microsoft Exchange Server Security Update for July 2019

  Severity

  Critical 4

  Qualys ID

  50094

  Vendor Reference

  KB4509408, KB4509409, KB4509410

  CVE Reference

  CVE-2019-1084, CVE-2019-1136, CVE-2019-1137

  CVSS Scores

  Base 5.1 / Temporal 3.8

  Description

  Microsoft has released an update for Microsoft Exchange Server that remediates for the following vulnerabilities:
  CVE-2019-1084: An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients.
  CVE-2019-1136: An elevation of privilege vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could gain the same rights as any other user of the Exchange server. This could allow the attacker to perform activities such as accessing the mailboxes of other users. To address this vulnerability, Microsoft has changed the way EWS handles NTLM tokens.
  CVE-2019-1137: A cross-site-scripting (XSS) vulnerability exists when Microsoft Exchange Server does not properly sanitize a specially crafted web request to an affected Exchange server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected server. The security update addresses the vulnerability by helping to ensure that Exchange Server properly sanitizes web requests.

  Affected Software:
  Microsoft Exchange Server 2010 Service Pack 3
  Microsoft Exchange Server 2013 Cumulative Update 23
  Microsoft Exchange Server 2016 Cumulative Update 12
  Microsoft Exchange Server 2016 Cumulative Update 13
  Microsoft Exchange Server 2019 Cumulative Update 1

  KB Articles covered: KB4509408, KB4509409,KB4509410.

  QID Detection Logic (authenticated):
  The QID checks for the version of file Exsetup.exe if it is lesser than:
  The version for Microsoft Exchange Server 2010 SP3 is 14.3.468.0.
  The version for Microsoft Exchange Server 2013 Cumulative Update 23 is 15.0.1497.3.
  The version for Microsoft Exchange Server 2016 Cumulative Update 12 is 15.1.1713.8.
  The version for Microsoft Exchange Server 2016 Cumulative Update 13 is 15.1.1779.4.
  The version for Microsoft Exchange Server 2019 Cumulative Update 1 is 15.2.330.9.
  The version for Microsoft Exchange Server 2019 Cumulative Update 2 is 15.2.397.5.

  Consequence

  Based on the vulnerability being exploited, an attacker could:
  - exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible.
  - execute a man-in-the-middle attack to forward an authentication request to a Microsoft Exchange Server, thereby allowing impersonation of another Exchange user.
  - perform cross-site scripting attacks on affected systems and run script in the security context of the current user.

  Solution

  Customers are advised to refer to KB4509408, KB4509409, or KB4509410 for updates pertaining to these vulnerabilities.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  KB4509408
  KB4509409
  KB4509410

• Microsoft Visual Studio Security Update for July 2019

  Severity

  Serious 3

  Qualys ID

  91548

  Vendor Reference

  CVE-2019-1077, CVE-2019-1079, CVE-2019-1113

  CVE Reference

  CVE-2019-1077, CVE-2019-1079, CVE-2019-1113

  CVSS Scores

  Base 6.8 / Temporal 5

  Description

  Microsoft Visual Studio contains the following vulnerabilities:
  An information disclosure vulnerability exists when Visual Studio improperly parses XML input in certain settings files. An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration.

  Affected Software:
  Microsoft Visual Studio 2010 Service Pack 1
  Microsoft Visual Studio 2012 Update 5
  Microsoft Visual Studio 2015 Update 3
  Microsoft Visual Studio 2017
  Microsoft Visual Studio 2017 version 15.9
  Microsoft Visual Studio 2019 version 16.0BR> Microsoft Visual Studio 2019 version 16.1

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

  Note: There is no detectable file change in the patch for Microsoft Visual Studio 2013 Update 5, So currently Microsoft Visual Studio 2013 Update 5 is not supported by this QID.

  Consequence

  An attacker who successfully exploited this vulnerability could read arbitrary files via an XML external entity (XXE) declaration.

  Solution

  Customers are advised to refer to CVE-2019-1079,CVE-2019-1113 and CVE-2019-1077 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-1079

• Microsoft Windows Servicing Stack Security Update July 2019

  Severity

  Medium 2

  Qualys ID

  91549

  Vendor Reference

  KB4504418, KB4509090, KB4509091, KB4509092, KB4509093, KB4509094, KB4509095, KB4509096

  CVE Reference

  N/A

  CVSS Scores

  Base 5.1 / Temporal 3.8

  Description

  Microsoft has released Servicing Stack security updates for Windows 10, Windows 10 Version 1607, Windows 10 Version 1703, Windows 10 Version 1709, Windows 10 Version 1803, Windows 10 Version 1809, Windows 10 Version 1903,Windows 8.1, Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2,Windows Server 2012 R2 (Server Core installation), Windows Server 2016,Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server, version 1803 (Server Core Installation), Windows Server, version 1903 (Server Core installation)

  QID Detection Logic (Authenticated):
  This authenticated QID will check for file version of CbsCore.dll

  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:
  KB4490628
  KB4493730
  KB4504418
  KB4509090
  KB4509091
  KB4509092
  KB4509093
  KB4509094
  KB4509095
  KB4509096

• Microsoft Edge Security Update for July 2019

  Severity

  Critical 4

  Qualys ID

  91550

  Vendor Reference

  KB4507435, KB4507450, KB4507453, KB4507455, KB4507458, KB4507460, KB4507469

  CVE Reference

  CVE-2019-1001, CVE-2019-1062, CVE-2019-1092, CVE-2019-1103, CVE-2019-1104, CVE-2019-1106, CVE-2019-1107

  CVSS Scores

  Base 7.6 / Temporal 5.6

  Description

  Microsoft releases the security update for Microsoft Edge July 2019

  The KB Articles associated with the update:
  KB4507458
  KB4507435
  KB4507460
  KB4507453
  KB4507450
  KB4507455
  KB4507469
  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:
  KB4507458 - 11.0.10240.18275
  KB4507435 - 11.0.17134.885
  KB4507460 - 11.0.14393.3085
  KB4507453 - 11.0.18362.239
  KB4507450 - 11.0.15063.1928
  KB4507455 - 11.0.16299.1268
  KB4507469 - 11.0.17763.615
  

  Consequence

  An attacker who successfully exploited the vulnerability could gain the same user rights as 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 ASP.NET Core Spoofing Vulnerability July 2019

  Severity

  Serious 3

  Qualys ID

  91551

  Vendor Reference

  CVE-2019-1075

  CVE Reference

  CVE-2019-1075

  CVSS Scores

  Base 5.8 / Temporal 4.3

  Description

  spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect.

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

  Affected versions:
  ASP.NET Core 2.1.0 prior to 2.1.12
  ASP.NET Core 2.2.0 prior to 2.2.6

  QID Detection Logic (Authenticated):
  The qid looks for sub directories under programfiles\dotnet\shared\Microsoft.NETCore.App, programfiles(x86)\dotnet\shared\Microsoft. NETCore.App and checks for vulnerable versions in .version file on windows.
  

  Consequence

  An attacker who successfully exploited the vulnerability could redirect a targeted user to a malicious website.

  Solution

  Microsoft has released a patch CVE-2019-1075

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-1075

• Microsoft .NET Framework Security Updates for July 2019

  Severity

  Urgent 5

  Qualys ID

  91552

  Vendor Reference

  KB4506986, KB4506987, KB4506988, KB4506989, KB4506991, KB4507411, KB4507412, KB4507413, KB4507414, KB4507419, KB4507420, KB4507421, KB4507422, KB4507423, KB4507435, KB4507450, KB4507455, KB4507458, KB4507460

  CVE Reference

  CVE-2019-1006, CVE-2019-1083, CVE-2019-1113

  CVSS Scores

  Base 6.8 / Temporal 5

  Description

  A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.
  A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests.
  An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys.
  KB4490628,KB4493730,KB4504418,KB4509090,KB4509091,KB4509092,KB4509093,KB4509094,KB4509095,KB4509096

  This security update is rated Critical for supported versions of Microsoft .NET Framework.

  QID Detection Logic (Authenticated):
  Checks for the vulnerable version of system.workflow.runtime.dll file.
  

  Consequence

  Successful exploitation allows an attacker to execute remote code.

  Solution

  Customers are advised to refer to CVE-2019-1113, CVE-2019-1083, CVE-2019-1006 for more details pertaining to this vulnerability.

  Patches:
  The following are links for downloading patches to fix these vulnerabilities:
  CVE-2019-1113

• Microsoft Windows Security Update for July 2019

  Severity

  Urgent 5

  Qualys ID

  91553

  Vendor Reference

  KB4507435, KB4507448, KB4507449, KB4507450, KB4507452, KB4507453, KB4507455, KB4507456, KB4507457, KB4507458, KB4507460, KB4507461, KB4507462, KB4507464, KB4507469

  CVE Reference

  CVE-2019-0785, CVE-2019-0811, CVE-2019-0865, CVE-2019-0880, CVE-2019-0887, CVE-2019-0962, CVE-2019-0966, CVE-2019-0975, CVE-2019-0999, CVE-2019-1006, CVE-2019-1037, CVE-2019-1067, CVE-2019-1071, CVE-2019-1073, CVE-2019-1074, CVE-2019-1082, CVE-2019-1084, CVE-2019-1085, CVE-2019-1086, CVE-2019-1087, CVE-2019-1088, CVE-2019-1089, CVE-2019-1090, CVE-2019-1091, CVE-2019-1093, CVE-2019-1094, CVE-2019-1095, CVE-2019-1096, CVE-2019-1097, CVE-2019-1098, CVE-2019-1099, CVE-2019-1100, CVE-2019-1101, CVE-2019-1102, CVE-2019-1108, CVE-2019-1116, CVE-2019-1117, CVE-2019-1118, CVE-2019-1119, CVE-2019-1120, CVE-2019-1121, CVE-2019-1122, CVE-2019-1123, CVE-2019-1124, CVE-2019-1125, CVE-2019-1126, CVE-2019-1127, CVE-2019-1128, CVE-2019-1129, CVE-2019-1130, CVE-2019-1132

  CVSS Scores

  Base 9.3 / Temporal 8.1

  Description

  Microsoft releases the security update for Windows July 2019

  The KB Articles associated with the update:
  KB4507456
  KB4507449
  KB4507458
  KB4507452
  KB4507457
  KB4507464
  KB4507460
  KB4507448
  KB4507453
  KB4507450
  KB4507435
  KB4507462
  KB4507455
  KB4507469
  KB4507461
  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:
  KB4507456 - 6.1.7601.24499
  KB4507449 - 6.1.7601.24499
  KB4507458 - 10.0.10240.18275
  KB4507460 - 10.0.14393.3085
  KB4507453 - 10.0.18362.239
  KB4507450 - 10.0.15063.1928
  KB4507435 - 10.0.17134.885
  KB4507455 - 10.0.16299.1268
  KB4507469 - 10.0.17763.615
  

  The following versions of win32k.sys with their corresponding KBs are verified:
  KB4507452 - 6.0.6003.20569
  KB4507461 - 6.0.6003.20569
  KB4507448 - 6.3.9600.19402
  KB4507457 - 6.3.9600.19402
  KB4507462 - 6.2.9200.22802
  KB4507464 - 6.2.9200.22802

  Update 8/6/2019 - Microsoft has released information about CVE-2019-1125. The vulnerability was fixed in the updates released on 9th July 2019.

  Consequence

  An attacker who successfully exploited this vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

  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

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