Critical CVSS 4.2 2018-04 archive

Executive Summary

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge (HTML-based). The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge (HTML-based) and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

Overview

4.2
CVSS MEDIUM
Critical
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Apr 10 2018
Last Updated Apr 10 2018
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
Low
INTEGRITY
Low
AVAILABILITY
None
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 3.8

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

12 affected products
Product KB Article Severity Impact Restart Required
ChakraCore Commit (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 for 32-bit Systems 4093111 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 for x64-based Systems 4093111 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for 32-bit Systems 4093109 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1511 for x64-based Systems 4093109 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for 32-bit Systems 4093119 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1607 for x64-based Systems 4093119 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for 32-bit Systems 4093107 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1703 for x64-based Systems 4093107 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems 4093112 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems 4093112 (Security Update) Critical Remote Code Execution Yes
Microsoft Edge (EdgeHTML-based) on Windows Server 2016 4093119 (Security Update) Moderate Remote Code Execution Yes

Patches

6 patches
Article Type Restart
Commit Security Update Yes
4093111 Security Update Yes
4093109 Security Update Yes
4093119 Security Update Yes
4093107 Security Update Yes
4093112 Security Update Yes

Known Exploits

Acknowledgments