CVE-2018-8284 — .NET Framework Remote Code Execution Injection Vulnerability

Executive Summary

A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly. An attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. To exploit the vulnerability, an attacker would need to pass specific input to an application utilizing susceptible .Net methods. The security update addresses the vulnerability by correcting how the Microsoft .NET Framework validates input.

Overview

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Remote Code Execution

Released Jul 10 2018

Last Updated Jul 10 2018

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

2 affected products

Product	KB Article	Severity	Impact	Restart Required
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 4338422 (Monthly Rollup) 4338611 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Yes Maybe None Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems 4338829 (Security Update) 4345455 (Alternate Cumulative) Important Remote Code Execution 4284860 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems 4338829 (Security Update) 4345455 (Alternate Cumulative) Important Remote Code Execution 4284860 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems 4338826 (Security Update) 4345419 (Alternate Cumulative) Important Remote Code Execution 4284874 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems 4338826 (Security Update) 4345419 (Alternate Cumulative) Important Remote Code Execution 4284874 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems 4338825 (Security Update) 4345420 (Alternate Cumulative) Important Remote Code Execution 4284819 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems 4338825 (Security Update) 4345420 (Alternate Cumulative) Important Remote Code Execution 4284819 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems 4338819 (Security Update) 4345421 (Alternate Cumulative) Important Remote Code Execution 4284835 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems 4338819 (Security Update) 4345421 (Alternate Cumulative) Important Remote Code Execution 4284835 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems 4338424 (Monthly Rollup) 4338613 (Security Only) Important Remote Code Execution 4099635; 4291497 2898868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems 4338424 (Monthly Rollup) 4338613 (Security Only) Important Remote Code Execution 4099635; 4291497 2898868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 4338421 (Monthly Rollup) 4338610 (Security Only) Important Remote Code Execution 4099634; 4291495 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 4338421 (Monthly Rollup) 4338610 (Security Only) Important Remote Code Execution 4099634; 4291495 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 4338424 (Monthly Rollup) 4338613 (Security Only) Important Remote Code Execution 4099635; 4291497 2898868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 4338424 (Monthly Rollup) 4338613 (Security Only) Important Remote Code Execution 4099635; 4291497 2898868 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2016 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation) 4338825 (Security Update) 4345420 (Alternate Cumulative) Important Remote Code Execution 4284819 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation) 4338819 (Security Update) 4345421 (Alternate Cumulative) Important Remote Code Execution 4284835 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 4338423 (Monthly Rollup) 4338612 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 4338423 (Monthly Rollup) 4338612 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4338423 (Monthly Rollup) 4338612 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4338423 (Monthly Rollup) 4338612 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4338423 (Monthly Rollup) 4338612 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems 4338415 (Monthly Rollup) 4338600 (Security Only) Important Remote Code Execution 4099635; 4291497 2898871 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems 4338415 (Monthly Rollup) 4338600 (Security Only) Important Remote Code Execution 4099635; 4291497 2898871 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows RT 8.1	`4338415 (Monthly Rollup)`	Important	Remote Code Execution	Maybe
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4338417 (Monthly Rollup) 4338602 (Security Only) Important Remote Code Execution 4099633, 4291493 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 4338416 (Monthly Rollup) 4338601 (Security Only) Important Remote Code Execution 4099634; 4291495 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) 4338416 (Monthly Rollup) 4338601 (Security Only) Important Remote Code Execution 4099634; 4291495 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 4338415 (Monthly Rollup) 4338600 (Security Only) Important Remote Code Execution 4099635; 4291497 2898871 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) 4338415 (Monthly Rollup) 4338600 (Security Only) Important Remote Code Execution 4099635; 4291497 2898871 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 4338420 (Monthly Rollup) 4338606 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 4338420 (Monthly Rollup) 4338606 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) 4338814 (Security Update) 4345418 (Alternate Cumulative) Important Remote Code Execution 4284880 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems 4338829 (Security Update) 4345455 (Alternate Cumulative) Important Remote Code Execution 4284860 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems 4338829 (Security Update) 4345455 (Alternate Cumulative) Important Remote Code Execution 4284860 Base: N/A Temporal: N/A Vector: N/A Yes None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 4338420 (Monthly Rollup) 4338606 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 4338420 (Monthly Rollup) 4338606 (Security Only) Important Remote Code Execution 4099636, 4291501 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems 4338419 (Monthly Rollup) 4338605 (Security Only) Important Remote Code Execution 4099635; 4291497 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for x64-based systems 4338419 (Monthly Rollup) 4338605 (Security Only) Important Remote Code Execution 4099635; 4291497 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1	`4338419 (Monthly Rollup)`	Important	Remote Code Execution	Maybe

Patches

2 patches

Article	Type	Restart
`4338415`	Monthly Rollup	Maybe
`4338419`	Monthly Rollup	Maybe

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

Soroush Dalili

References

MSRC Advisory MITRE NVD