Windows Shell
CVE-2018-8140 — Cortana Elevation of Privilege Vulnerability
Executive Summary
An Elevation of Privilege vulnerability exists when Cortana retrieves data from user input services without consideration for status. An attacker who successfully exploited the vulnerability could execute commands with elevated permissions. To exploit the vulnerability, an attacker would require physical/console access and the system would need to have Cortana assistance enabled. The security update addresses the vulnerability by ensuring Cortana considers status when retrieves information from input services.
Overview
6.8
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Physical
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.9
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
6 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 1709 for 32-bit Systems | 4284819 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4284819 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4284835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4284835 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1709 (Server Core Installation) | 4284819 (Security Update) |
Important | Elevation of Privilege | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4284835 (Security Update) |
Important | Elevation of Privilege | Yes |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
4284819 |
Security Update | Yes |
4284835 |
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
Ron Marcovich
Cedric Cochin of McAfee’s Advanced Threat Research (ATR) Team
References
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