Microsoft JScript
CVE-2018-8417 — Microsoft JScript Security Feature Bypass Vulnerability
Executive Summary
A security feature bypass vulnerability exists in Microsoft JScript that could allow an attacker to bypass Device Guard. To exploit the vulnerability, an attacker would first have to access the local machine, and run a specially crafted application to create arbitrary COM objects. The update addresses the vulnerability by correcting how Microsoft JScript manages COM object creation.
Overview
4.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Local
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
Low
INTEGRITY
Low
AVAILABILITY
Low
Temporal Score: 4.5
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
21 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4467680 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 for x64-based Systems | 4467680 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4467691 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4467691 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1703 for 32-bit Systems | 4467696 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1703 for x64-based Systems | 4467696 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4467686 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for ARM64-based Systems | 4467686 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4467686 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4467702 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for ARM64-based Systems | 4467702 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4467702 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 4467708 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 4467708 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows 10 Version 1809 for x64-based Systems | 4467708 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2016 | 4467691 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2016 (Server Core installation) | 4467691 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2019 | 4467708 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server 2019 (Server Core installation) | 4467708 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server, version 1709 (Server Core Installation) | 4467686 (Security Update) |
Important | Security Feature Bypass | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4467702 (Security Update) |
Important | Security Feature Bypass | Yes |
Patches
6 patches
| Article | Type | Restart |
|---|---|---|
4467680 |
Security Update | Yes |
4467691 |
Security Update | Yes |
4467696 |
Security Update | Yes |
4467686 |
Security Update | Yes |
4467702 |
Security Update | Yes |
4467708 |
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
References
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