Device Guard
CVE-2018-0827 — Windows Security Feature Bypass Vulnerability
Executive Summary
A security feature bypass vulnerability exists in Windows Scripting Host which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine. To exploit the vulnerability, an attacker would first have to access the local machine, and then run a malicious program. The update addresses the vulnerability by correcting how Windows Scripting Host handles objects in memory.
Overview
5.3
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
Low
INTEGRITY
Low
AVAILABILITY
Low
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
5 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 1703 for 32-bit Systems | 4074592 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1703 for x64-based Systems | 4074592 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4074588 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4074588 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server, version 1709 (Server Core Installation) | 4074588 (Security Update) |
Important | Security Feature Bypass | Yes |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
4074592 |
Security Update | Yes |
4074588 |
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
Matt Nelson ( @enigma0x3
References
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