Important CVSS 7.5 2018-08 archive

Executive Summary

A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed. An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The attacker could present to the user a removable drive, or remote share, that contains a malicious .LNK file and an associated malicious binary. When the user opens this drive(or remote share) in Windows Explorer, or any other application that parses the .LNK file, the malicious binary will execute code of the attacker’s choice, on the target system. The security update addresses the vulnerability by correcting the processing of shortcut LNK references.

Overview

7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
N/A
MS Exploit Likelihood
Category Remote Code Execution
Released Aug 14 2018
Last Updated Aug 14 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

5 affected products
Product KB Article Severity Impact Restart Required
Windows 7 for 32-bit Systems Service Pack 1 4343900 (Monthly Rollup) 4343899 (Security Only) Important Remote Code Execution 4338818 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows 7 for x64-based Systems Service Pack 1 4343900 (Monthly Rollup) 4343899 (Security Only) Important Remote Code Execution 4338818 Base: 7.5 Temporal: 6.7 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 4340939 (Security Update) Important Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4340939 (Security Update) Important Remote Code Execution Yes
Windows Server 2008 for Itanium-Based Systems Service Pack 2 4340939 (Security Update) Important Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4340939 (Security Update) Important Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4340939 (Security Update) Important Remote Code Execution Yes

Patches

1 patch
Article Type Restart
4340939 Security Update Yes

Known Exploits

Acknowledgments

Lucas Leong ( @wmliang