Critical CVSS 7.5 2018-09 archive

Executive Summary

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory. 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, the attacker 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. An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. 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 a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action, typically by an enticement in an email or instant message, or by getting the user to open an attachment sent through email. The security update addresses the vulnerability by modifying how Internet Explorer handles objects in memory.

Overview

7.5
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Sep 11 2018
Last Updated Sep 11 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
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Proof-of-Concept
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.7

EPSS Score

No EPSS score available for this CVE.

View on FIRST.org

Affected Products

4 affected products
Product KB Article Severity Impact Restart Required
Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems 4457142 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems 4457142 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems 4457128 (Security Update) Critical Remote Code Execution Yes
Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems 4457128 (Security Update) Critical Remote Code Execution Yes

Patches

2 patches
Article Type Restart
4457142 Security Update Yes
4457128 Security Update Yes

Known Exploits

Acknowledgments

ca0nguyen working with Trend Micro's Zero Day Initiative