CVE-2018-8450 — Windows Search Remote Code Execution Vulnerability

Executive Summary

A remote code execution vulnerability exists when Windows Search handles objects in memory. 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. To exploit the vulnerability, the attacker could send specially crafted messages to the Windows Search service. An attacker with access to a target computer could exploit this vulnerability to elevate privileges and take control of the computer. Additionally, in an enterprise scenario, a remote authenticated attacker could remotely trigger the vulnerability through an SMB connection and then take control of a target computer. The security update addresses the vulnerability by correcting how Windows Search handles objects in memory.

Overview

7.5

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

More Likely

MS Exploit Likelihood

Category Remote Code Execution

Released Nov 13 2018

Last Updated Nov 13 2018

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

CVSS Vector

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Proof-of-Concept

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.7

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

14 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 10 for 32-bit Systems	`4467680 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 for x64-based Systems	`4467680 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1607 for 32-bit Systems	`4467691 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1607 for x64-based Systems	`4467691 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1703 for 32-bit Systems	`4467696 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1703 for x64-based Systems	`4467696 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1709 for 32-bit Systems	`4467686 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1709 for ARM64-based Systems	`4467686 (Security Update)`	Important	Remote Code Execution	Yes
Windows 10 Version 1709 for x64-based Systems	`4467686 (Security Update)`	Important	Remote Code Execution	Yes
Windows 7 for 32-bit Systems Service Pack 1 4467107 (Monthly Rollup) 4467106 (Security Only) Important Remote Code Execution 4462923 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 7 for x64-based Systems Service Pack 1 4467107 (Monthly Rollup) 4467106 (Security Only) Important Remote Code Execution 4462923 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for 32-bit systems 4467697 (Monthly Rollup) 4467703 (Security Only) Important Remote Code Execution 4462926 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 8.1 for x64-based systems 4467697 (Monthly Rollup) 4467703 (Security Only) Important Remote Code Execution 4462926 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows RT 8.1	`4467697 (Monthly Rollup)`	Important	Remote Code Execution	Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4467706 (Monthly Rollup) 4467700 (Security Only) Important Remote Code Execution 4463097 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4467706 (Monthly Rollup) 4467700 (Security Only) Important Remote Code Execution 4463097 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 4467706 (Monthly Rollup) 4467700 (Security Only) Important Remote Code Execution 4463097 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4467706 (Monthly Rollup) 4467700 (Security Only) Important Remote Code Execution 4463097 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 4467107 (Monthly Rollup) 4467106 (Security Only) Important Remote Code Execution 4462923 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4467107 (Monthly Rollup) 4467106 (Security Only) Important Remote Code Execution 4462923 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 4467701 (Monthly Rollup) 4467678 (Security Only) Important Remote Code Execution 4462929 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 (Server Core installation) 4467701 (Monthly Rollup) 4467678 (Security Only) Important Remote Code Execution 4462929 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 4467697 (Monthly Rollup) 4467703 (Security Only) Important Remote Code Execution 4462926 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2012 R2 (Server Core installation) 4467697 (Monthly Rollup) 4467703 (Security Only) Important Remote Code Execution 4462926 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2016	`4467691 (Security Update)`	Important	Remote Code Execution	Yes
Windows Server 2016 (Server Core installation)	`4467691 (Security Update)`	Important	Remote Code Execution	Yes
Windows Server, version 1709 (Server Core Installation)	`4467686 (Security Update)`	Important	Remote Code Execution	Yes
Windows Server, version 1803 (Server Core Installation)	`4467702 (Security Update)`	Important	Remote Code Execution	Yes

Patches

6 patches

Article	Type	Restart
`4467680`	Security Update	Yes
`4467691`	Security Update	Yes
`4467696`	Security Update	Yes
`4467686`	Security Update	Yes
`4467697`	Monthly Rollup	Yes
`4467702`	Security Update	Yes

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

None

References

MSRC Advisory MITRE NVD