Microsoft Windows
CVE-2018-1040 — Windows Code Integrity Module Denial of Service Vulnerability
Executive Summary
A denial of service vulnerability exists in the way that the Windows Code Integrity Module performs hashing. An attacker who successfully exploited the vulnerability could cause a system to stop responding. Note that the denial of service condition would not allow an attacker to execute code or to elevate user privileges. However, the denial of service condition could prevent authorized users from using system resources. An attacker could host a specially crafted file in a website or SMB share. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment. The security update addresses the vulnerability by modifying how the Code Integrity Module performs hashing.
Overview
5.3
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
Temporal Score: 4.8
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
20 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 4284860 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 for x64-based Systems | 4284860 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 4284880 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1607 for x64-based Systems | 4284880 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1703 for 32-bit Systems | 4284874 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1703 for x64-based Systems | 4284874 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1709 for 32-bit Systems | 4284819 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1709 for x64-based Systems | 4284819 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1803 for 32-bit Systems | 4284835 (Security Update) |
Important | Denial of Service | Yes |
| Windows 10 Version 1803 for x64-based Systems | 4284835 (Security Update) |
Important | Denial of Service | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 4284826 (Monthly Rollup) 4284867 (Security Only) Important Denial of Service 4103718 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows 7 for x64-based Systems Service Pack 1 4284826 (Monthly Rollup) 4284867 (Security Only) Important Denial of Service 4103718 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows 8.1 for 32-bit systems 4284815 (Monthly Rollup) 4284878 (Security Only) Important Denial of Service 4103725 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows 8.1 for x64-based systems 4284815 (Monthly Rollup) 4284878 (Security Only) Important Denial of Service 4103725 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows RT 8.1 | 4284815 (Monthly Rollup) |
Important | Denial of Service | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | 4230467 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | 4230467 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | 4230467 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 | 4230467 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | 4230467 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 4284826 (Monthly Rollup) 4284867 (Security Only) Important Denial of Service 4103718 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 4284826 (Monthly Rollup) 4284867 (Security Only) Important Denial of Service 4103718 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4284826 (Monthly Rollup) 4284867 (Security Only) Important Denial of Service 4103718 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2012 4284855 (Monthly Rollup) 4284846 (Security Only) Important Denial of Service 4103730 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2012 (Server Core installation) 4284855 (Monthly Rollup) 4284846 (Security Only) Important Denial of Service 4103730 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2012 R2 4284815 (Monthly Rollup) 4284878 (Security Only) Important Denial of Service 4103725 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2012 R2 (Server Core installation) 4284815 (Monthly Rollup) 4284878 (Security Only) Important Denial of Service 4103725 Base: 5.3 Temporal: 4.8 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O Yes None Windows Server 2016 | 4284880 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server 2016 (Server Core installation) | 4284880 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server, version 1709 (Server Core Installation) | 4284819 (Security Update) |
Important | Denial of Service | Yes |
| Windows Server, version 1803 (Server Core Installation) | 4284835 (Security Update) |
Important | Denial of Service | Yes |
Patches
7 patches
| Article | Type | Restart |
|---|---|---|
4284860 |
Security Update | Yes |
4284880 |
Security Update | Yes |
4284874 |
Security Update | Yes |
4284819 |
Security Update | Yes |
4284835 |
Security Update | Yes |
4284815 |
Monthly Rollup | Yes |
4230467 |
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
Honggang Ren of Fortinet's FortiGuard Labs
References
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