Windows 10: CVE-2018-8421 - .NET Framework Remote Code Execution Vulnerability

Brink · Sep 12, 2018

A remote code execution vulnerability exists when Microsoft .NET Framework processes input. An attacker who successfully exploited this vulnerability could take control of an affected system.

To exploit the vulnerability, an attacker would need to be able to upload a specially crafted file to a web application.

The security update addresses the vulnerability by correcting how .NET Framework processes input.

Exploitability Assessment

The following table provides an exploitability assessment for this vulnerability at the time of original publication.

Publicly Disclosed Exploited Latest Software Release Older Software Release Denial of Service No No 2 - Exploitation Less Likely 2 - Exploitation Less Likely Not Applicable
Affected Products

The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see the Microsoft Support Lifecycle.

Product Platform Article Download Impact Severity Supersedence Microsoft .NET Framework 2.0 Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 2.0 Service Pack 2 Windows Server 2008 for Itanium-Based Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 2.0 Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 3.0 Service Pack 2 Windows Server 2008 for 32-bit Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 3.0 Service Pack 2 Windows Server 2008 for Itanium-Based Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 3.0 Service Pack 2 Windows Server 2008 for x64-based Systems Service Pack 2 4457043 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457054 Security Only Microsoft .NET Framework 3.5 Windows 10 Version 1703 for 32-bit Systems 4457138 Security Update Remote Code Execution Critical 4343885 Microsoft .NET Framework 3.5 Windows 10 Version 1703 for x64-based Systems 4457138 Security Update Remote Code Execution Critical 4343885 Microsoft .NET Framework 3.5 Windows 10 Version 1803 for 32-bit Systems 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 3.5 Windows 10 Version 1803 for x64-based Systems 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 3.5 Windows Server, version 1803 (Server Core Installation) 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 3.5 Windows 10 Version 1709 for 32-bit Systems 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 3.5 Windows 10 Version 1709 for 64-based Systems 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 3.5 Windows Server, version 1709 (Server Core Installation) 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 3.5 Windows 10 for 32-bit Systems 4457132 Security Update Remote Code Execution Critical 4343892 Microsoft .NET Framework 3.5 Windows 10 for x64-based Systems 4457132 Security Update Remote Code Execution Critical 4343892 Microsoft .NET Framework 3.5 Windows 10 Version 1607 for 32-bit Systems 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 3.5 Windows 10 Version 1607 for x64-based Systems 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 3.5 Windows Server 2016 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 3.5 Windows Server 2016 (Server Core installation) 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 3.5 Windows 8.1 for 32-bit systems 4457045 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457056 Security Only Microsoft .NET Framework 3.5 Windows 8.1 for x64-based systems 4457045 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457056 Security Only Microsoft .NET Framework 3.5 Windows Server 2012 4457042 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457053 Security Only Microsoft .NET Framework 3.5 Windows Server 2012 (Server Core installation) 4457042 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457053 Security Only Microsoft .NET Framework 3.5 Windows Server 2012 R2 4457045 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457056 Security Only Microsoft .NET Framework 3.5 Windows Server 2012 R2 (Server Core installation) 4457045 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457056 Security Only Microsoft .NET Framework 3.5.1 Windows 7 for 32-bit Systems Service Pack 1 4457044 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457055 Security Only Microsoft .NET Framework 3.5.1 Windows 7 for x64-based Systems Service Pack 1 4457044 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457055 Security Only Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4457044 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457055 Security Only Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4457044 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457055 Security Only Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4457044 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457055 Security Only Microsoft .NET Framework 4.5.2 Windows 7 for 32-bit Systems Service Pack 1 4457038 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows 7 for x64-based Systems Service Pack 1 4457038 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows 8.1 for 32-bit systems 4457036 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457028 Security Only Microsoft .NET Framework 4.5.2 Windows 8.1 for x64-based systems 4457036 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457028 Security Only Microsoft .NET Framework 4.5.2 Windows RT 8.1 4457036 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 Microsoft .NET Framework 4.5.2 Windows Server 2008 for 32-bit Systems Service Pack 2 4457038 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2008 for x64-based Systems Service Pack 2 4457038 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4457038 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4457038 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457030 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2012 4457037 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457029 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2012 (Server Core installation) 4457037 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457029 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2012 R2 4457036 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457028 Security Only Microsoft .NET Framework 4.5.2 Windows Server 2012 R2 (Server Core installation) 4457036 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457028 Security Only Microsoft .NET Framework 4.6 Windows Server 2008 for 32-bit Systems Service Pack 2 4457035 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457027 Security Only Microsoft .NET Framework 4.6 Windows Server 2008 for x64-based Systems Service Pack 2 4457035 Monthly Rollup Remote Code Execution Critical 4345593, 4346083 4457027 Security Only Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows 10 Version 1607 for 32-bit Systems 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows 10 Version 1607 for x64-based Systems 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows Server 2016 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows Server 2016 (Server Core installation) 4457131 Security Update Remote Code Execution Critical 4343887 Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows 7 for 32-bit Systems Service Pack 1 4457035 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457027 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows 7 for x64-based Systems Service Pack 1 4457035 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457027 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows 8.1 for 32-bit systems 4457034 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457026 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows 8.1 for x64-based systems 4457034 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457026 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows RT 8.1 4457034 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 4457035 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457027 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4457035 Monthly Rollup Remote Code Execution Critical 4345590, 4346080 4457027 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2012 4457033 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457025 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2012 (Server Core installation) 4457033 Monthly Rollup Remote Code Execution Critical 4345591, 4346081 4457025 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2012 R2 4457034 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457026 Security Only Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 Windows Server 2012 R2 (Server Core installation) 4457034 Monthly Rollup Remote Code Execution Critical 4345592, 4346082 4457026 Security Only Microsoft .NET Framework 4.7.1/4.7.2 Windows 10 Version 1709 for 32-bit Systems 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 4.7.1/4.7.2 Windows 10 Version 1709 for 64-based Systems 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 4.7.1/4.7.2 Windows Server, version 1709 (Server Core Installation) 4457142 Security Update Remote Code Execution Critical 4343897 Microsoft .NET Framework 4.7.2 Windows 10 Version 1803 for 32-bit Systems 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 4.7.2 Windows 10 Version 1803 for x64-based Systems 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 4.7.2 Windows Server, version 1803 (Server Core Installation) 4457128 Security Update Remote Code Execution Critical 4343909 Microsoft .NET Framework 4.7/4.7.1/4.7.2 Windows 10 Version 1703 for 32-bit Systems 4457138 Security Update Remote Code Execution Critical 4343885 Microsoft .NET Framework 4.7/4.7.1/4.7.2 Windows 10 Version 1703 for x64-based Systems 4457138 Security Update Remote Code Execution Critical 4343885
Mitigations

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for this vulnerability.

Acknowledgements

Soroush Dalili of NCC Group

See acknowledgements for more information.

Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

Version Date Description 1.0 09/11/2018 Information published. 1.1 09/12/2018 Corrected vulnerability description. This is an informational change only.
Click to expand...

Source: https://portal.msrc.microsoft.com/en.../CVE-2018-8421

:)

Brink · Sep 12, 2018

CVE-2018-8245 Microsoft Publisher Remote Code Execution Vulnerability

A remote code execution vulnerability exists when Microsoft Publisher fails to utilize features that lock down the Local Machine zone when instantiating OLE objects. An attacker who successfully exploited the vulnerability could force arbitrary code to be executed in the Local Machine zone.

To exploit the vulnerability, the attacker could send a specially crafted Publisher document to a victim. The user would then need to open the document in Publisher to trigger the vulnerability.

This update addresses the vulnerability by ensuring that Publisher properly utilizes built-in OS functionality to lock down the Local Machine zone.

Exploitability Assessment

The following table provides an exploitability assessment for this vulnerability at the time of original publication.

[table][tr]Publicly Disclosed Exploited Latest Software Release Older Software Release Denial of Service [/tr] [tr][td]No[/td] [td]No[/td] [td]4 - Not affected[/td] [td]2 - Exploitation Less Likely[/td] [td]Not Applicable[/td] [/tr] [/table]

Affected Products

The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see the Microsoft Support Lifecycle.

[table][tr]Product Platform Article Download Impact Severity Supersedence [/tr] [tr][td]Microsoft Publisher 2010 Service Pack 2 (32-bit editions)[/td] [td][/td] [td]4011186[/td] [td]Security Update[/td] [td]Remote Code Execution[/td] [td]Important[/td] [td]3141537[/td] [/tr] [tr][td]Microsoft Publisher 2010 Service Pack 2 (64-bit editions)[/td] [td][/td] [td]4011186[/td] [td]Security Update[/td] [td]Remote Code Execution[/td] [td]Important[/td] [td]3141537[/td] [/tr] [/table]

Mitigations

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for this vulnerability.

Acknowledgements

Eduardo Braun Prado working with iDefense Labs

See acknowledgements for more information.

Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

[table][tr]Version Date Description [/tr] [tr][td]1.0[/td] [td]06/12/2018[/td] [td]Information published.[/td] [/tr] [tr][td]1.1[/td] [td]06/15/2018[/td] [td]Corrected the CVE title and description to address the vulnerability as remote code execution. In the Affected Products table, corrected the Impact to Remote Code Execution. This is an informational change only.[/td] [/tr] [/table]
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Source: https://portal.msrc.microsoft.com/en.../CVE-2018-8245

Brink · Sep 12, 2018

Office 2016 & Office 365 Monthly Channel v1711 build 8730.2175 Jan. 9

Monthly Channel

January 9, 2018
Version 1711 (Build 8730.2175)

Excel: Security updates

This channel release contains security updates covered in the following CVEs and advisories:

CVE-2018-0796: Microsoft Excel Remote Code Execution Vulnerability

Advisory 170021: Microsoft Office Defense in Depth Update

Outlook: Security updates

This channel release contains security updates covered in the following CVEs:

CVE-2018-0791: Microsoft Outlook Remote Code Execution Vulnerability

CVE-2018-0793: Microsoft Outlook Remote Code Execution Vulnerability

Word: Security updates

This channel release contains security updates covered in the following CVEs:

CVE-2018-0792: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0793: Microsoft Outlook Remote Code Execution Vulnerability

CVE-2018-0794: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0798: Microsoft Office Memory Corruption Vulnerability

CVE-2018-0801: Microsoft Office Remote Code Execution Vulnerability

CVE-2018-0802: Microsoft Office Memory Corruption Vulnerability

CVE-2018-0804: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0805: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0806: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0807: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0812: Microsoft Word Memory Corruption Vulnerability

Office suite: Security updates

This channel release contains security updates covered in the following CVEs and advisories:

CVE-2018-0795: Microsoft Office Remote Code Execution Vulnerability

Advisory 180003: Microsoft Office Defense in Depth Update

Click to expand...

Source: Office 365 client update channel releases

See also: Version and build numbers of update channel releases - Office Support

Tip How to Check for Updates in Office 2016 for Windows

Brink · Sep 12, 2018

Office 2016 & Office 365 Semi-Annual Targeted v1708 build 8431.2153

Semi-Annual Channel (Targeted)

January 9, 2018
Version 1708 (Build 8431.2153)

Excel: Security updates

This channel release contains security updates covered in the following CVEs and advisories:

CVE-2018-0796: Microsoft Excel Remote Code Execution Vulnerability

Advisory 170021: Microsoft Office Defense in Depth Update

Excel: Non-security updates

This channel release contains the following non-security updates:

Fix an issue where the programmatic creation of a PivotTable followed by a programmatic refresh causes Excel to crash.

Outlook: Security updates

This channel release contains security updates covered in the following CVEs:

CVE-2018-0791: Microsoft Outlook Remote Code Execution Vulnerability

CVE-2018-0793: Microsoft Outlook Remote Code Execution Vulnerability

Word: Security updates

This channel release contains security updates covered in the following CVEs:

CVE-2018-0792: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0793: Microsoft Outlook Remote Code Execution Vulnerability

CVE-2018-0794: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0798: Microsoft Office Memory Corruption Vulnerability

CVE-2018-0801: Microsoft Office Remote Code Execution Vulnerability

CVE-2018-0802: Microsoft Office Memory Corruption Vulnerability

CVE-2018-0804: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0805: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0806: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0807: Microsoft Word Remote Code Execution Vulnerability

CVE-2018-0812: Microsoft Word Memory Corruption Vulnerability

Office suite: Security updates

This channel release contains security updates covered in the following CVEs and advisories:

CVE-2018-0795: Microsoft Office Remote Code Execution Vulnerability

Advisory 180003: Microsoft Office Defense in Depth Update

Office suite: Non-security updates

This channel release contains the following non-security updates:

Add support for single sign-on (SSO) for domain users for Office 365 Germany plans where the identity is federated with an on-premises Active Directory.

Add functionality to prevent minors from acquiring and activating Office Add-ins that come from the Office Store.

Click to expand...

Source: Office 365 client update channel releases

See also: Version and build numbers of update channel releases - Office Support

Tip How to Check for Updates in Office 2016 for Windows

Windows 10: CVE-2018-8421 - .NET Framework Remote Code Execution Vulnerability

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