Rewterz Threat Advisory – Microsoft Windows Server 2016 / Windows 10 Multiple Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2019-0841

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0803

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka ‘Win32k Elevation of Privilege Vulnerability’.

CVE-2019-0732

A security feature bypass vulnerability exists in Windows which could allow an attacker to bypass Device Guard when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Security Feature Bypass Vulnerability’.

CVE-2019-0786

An elevation of privilege vulnerability exists in the Microsoft Server Message Block (SMB) Server when an attacker with valid credentials attempts to open a specially crafted file over the SMB protocol on the same machine, aka ‘SMB Server Elevation of Privilege Vulnerability’.

CVE-2019-0840

An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka ‘Windows Kernel Information Disclosure Vulnerability’.

CVE-2019-0879

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka ‘Jet Database Engine Remote Code Execution Vulnerability’.

CVE-2019-0848

An information disclosure vulnerability exists when the win32k component improperly provides kernel information, aka ‘Win32k Information Disclosure Vulnerability’.

CVE-2019-0791

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka ‘MS XML Remote Code Execution Vulnerability’.

CVE-2019-0839

An information disclosure vulnerability exists when the Terminal Services component improperly discloses the contents of its memory, aka ‘Windows Information Disclosure Vulnerability’.

CVE-2019-0845

A remote code execution vulnerability exists when the IOleCvt interface renders ASP webpage content, aka ‘Windows IOleCvt Interface Remote Code Execution Vulnerability’.

CVE-2019-0685

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka ‘Win32k Elevation of Privilege Vulnerability’.

CVE-2019-0731

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0844

An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka ‘Windows Kernel Information Disclosure Vulnerability’.

CVE-2019-0837

An information disclosure vulnerability exists when DirectX improperly handles objects in memory, aka ‘DirectX Information Disclosure Vulnerability’.

CVE-2019-0846

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka ‘Jet Database Engine Remote Code Execution Vulnerability’.

CVE-2019-0796

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0859

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka ‘Win32k Elevation of Privilege Vulnerability’.

CVE-2019-0730

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0877

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka ‘Jet Database Engine Remote Code Execution Vulnerability’.

CVE-2019-0842

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka ‘Windows VBScript Engine Remote Code Execution Vulnerability’.

CVE-2019-0805

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0802

An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka ‘Windows GDI Information Disclosure Vulnerability’.

CVE-2019-0735

An elevation of privilege vulnerability exists when the Windows Client Server Run-Time Subsystem (CSRSS) fails to properly handle objects in memory, aka ‘Windows CSRSS Elevation of Privilege Vulnerability’.

CVE-2019-0849

An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory, aka ‘Windows GDI Information Disclosure Vulnerability’.

CVE-2019-0790

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka ‘MS XML Remote Code Execution Vulnerability’.

CVE-2019-0792

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka ‘MS XML Remote Code Execution Vulnerability’.

CVE-2019-0793

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka ‘MS XML Remote Code Execution Vulnerability’.

CVE-2019-0836

An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka ‘Windows Elevation of Privilege Vulnerability’.

CVE-2019-0847

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka ‘Jet Database Engine Remote Code Execution Vulnerability’.

CVE-2019-0814

An information disclosure vulnerability exists when the win32k component improperly provides kernel information, aka ‘Win32k Information Disclosure Vulnerability’.

CVE-2019-0851

A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka ‘Jet Database Engine Remote Code Execution Vulnerability’.

CVE-2019-0688

An information disclosure vulnerability exists when the Windows TCP/IP stack improperly handles fragmented IP packets, aka ‘Windows TCP/IP Information Disclosure Vulnerability’.

CVE-2019-0795

A remote code execution vulnerability exists when the Microsoft XML Core Services MSXML parser processes user input, aka ‘MS XML Remote Code Execution Vulnerability’.

CVE-2019-0794

A remote code execution vulnerability exists when OLE automation improperly handles objects in memory, aka ‘OLE Automation Remote Code Execution Vulnerability’.

CVE-2019-0853

A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the memory, aka ‘GDI+ Remote Code Execution Vulnerability’.

CVE-2019-0838

An information disclosure vulnerability exists when Windows Task Scheduler improperly discloses credentials to Windows Credential Manager, aka ‘Windows Information Disclosure Vulnerability’.

Impact

• System access
• Privilege escalation
• Exposure of sensitive information
• Manipulation of data
• Security Bypass

Affected Vendors

Microsoft

Affected Products

• Microsoft Windows 10
• Microsoft Windows Server 2016

Remediation

Vendor has released updates for the following products..

Windows Server 2016 (KB4493470):

Windows 10 Version 1607 for x64-based Systems (KB4493470):

Windows Server 2016 (Server Core installation) (KB4493470):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493470

Windows 10 Version 1709 for ARM64-based Systems (KB4493441):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493441

Windows 10 Version 1709 for x64-based Systems (KB4493441):

Windows Server, version 1709 (Server Core Installation) (KB4493441):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493441

Windows 10 Version 1709 for 32-bit Systems (KB4493441):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493441

Windows 10 Version 1803 for ARM64-based Systems (KB4493464):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493464

Windows 10 Version 1803 for x64-based Systems (KB4493464):

Windows Server, version 1803 (Server Core Installation) (KB4493464):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493464

Windows 10 Version 1803 for 32-bit Systems (KB4493464):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493464

Windows 10 Version 1607 for 32-bit Systems (KB4493470):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493470

Windows 10 Version 1703 for x64-based Systems (KB4493474):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493474

Windows 10 Version 1703 for 32-bit Systems (KB4493474):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493474

Windows 10 for x64-based Systems (KB4493475):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493475

Windows 10 for 32-bit Systems (KB4493475):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493475

Windows 10 Version 1809 for ARM64-based Systems (KB4493509):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493509

Windows 10 Version 1809 for x64-based Systems (KB4493509):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493509

Windows 10 Version 1809 for 32-bit Systems (KB4493509):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493509

Windows 10 for x64-based Systems (KB4093430):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4093430

Windows 10 for 32-bit Systems (KB4093430):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4093430

Windows 10 Version 1809 for x64-based Systems (KB4493510):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493510

Windows 10 Version 1809 for 32-bit Systems (KB4493510):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493510

Windows Server 2016 (KB4485447):

Windows 10 Version 1607 for x64-based Systems (KB4485447):

Windows Server 2016 (Server Core installation) (KB4485447):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485447

Windows 10 Version 1607 for 32-bit Systems (KB4485447):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485447

Windows 10 Version 1709 for ARM64-based Systems (KB4485448):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485448

Windows 10 Version 1709 for x64-based Systems (KB4485448):

Windows Server, version 1709 (Server Core Installation) (KB4485448):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485448

Windows 10 Version 1709 for 32-bit Systems (KB4485448):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485448

Windows 10 Version 1803 for ARM64-based Systems (KB4485449):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485449

Windows 10 Version 1803 for x64-based Systems (KB4485449):

Windows Server, version 1803 (Server Core Installation) (KB4485449):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485449

Windows 10 Version 1803 for 32-bit Systems (KB4485449):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4485449

Windows 10 Version 1703 for x64-based Systems (KB4487327):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4487327

Windows 10 Version 1703 for 32-bit Systems (KB4487327):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4487327

Windows 10 Version 1809 for ARM64-based Systems (KB4493510):

https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB4493510