CVE-2018-8388 — Microsoft Edge Spoofing Vulnerability
Executive Summary
A spoofing vulnerability exists when Microsoft Edge improperly handles specific HTML content. An attacker who successfully exploited this vulnerability could trick a user into believing that the user was on a legitimate website. The specially crafted website could either spoof content or serve as a pivot to chain an attack with other vulnerabilities in web services. To exploit the vulnerability, the user must either browse to a malicious website or be redirected to it. In an email attack scenario, an attacker could send an email message in an attempt to convince the user to click a link to a malicious site. In a web-based attack scenario, an attacker could host a specially crafted website designed to appear as a legitimate website to the user. However, the attacker would have no way to force the user to visit the specially crafted website. The attacker would have to convince the user to visit the specially crafted website, typically by way of enticement in an email or instant message. The security update addresses the vulnerability by correcting how Microsoft Edge handles specific HTML content.
Overview
CVSS Vector
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems | 4343887 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems | 4343887 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems | 4343885 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems | 4343885 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems | 4343897 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems | 4343897 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | 4343909 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | 4343909 (Security Update) |
Low | Spoofing | Yes |
| Microsoft Edge (EdgeHTML-based) on Windows Server 2016 | 4343887 (Security Update) |
Low | Spoofing | Yes |
Patches
| Article | Type | Restart |
|---|---|---|
4343887 |
Security Update | Yes |
4343885 |
Security Update | Yes |
4343897 |
Security Update | Yes |
4343909 |
Security Update | Yes |
Known Exploits
Acknowledgments
Gareth Heyes of PortSwigger