CVE-2018-8346

Microsoft Windows LNK File Uninitialized Pointer Information Disclosure Vulnerability

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed, aka "LNK Remote Code Execution Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8345.

Existe una vulnerabilidad de ejecución remota de código en Microsoft Windows que podría permitir la ejecución remota de código si se procesa un archivo .LNK. Esto también se conoce como "LNK Remote Code Execution Vulnerability". Esto afecta a Windows Server 2008, Windows 7 y Windows Server 2008 R2. El ID de este CVE es diferente de CVE-2018-8345.

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of .LNK files. Crafted data in a .LNK file can trigger access to a pointer prior to initialization. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current user.

*Credits: Lucas Leong (@wmliang)

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-03-14 CVE Reserved
2018-08-14 CVE Published
2024-07-25 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-94: Improper Control of Generation of Code ('Code Injection')

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/105028	Third Party Advisory
http://www.securitytracker.com/id/1041473	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8346	2018-10-18

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 7 Search vendor "Microsoft" for product "Windows 7"				-		sp1		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"				-		sp2		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2008 Search vendor "Microsoft" for product "Windows Server 2008"				r2 Search vendor "Microsoft" for product "Windows Server 2008" and version "r2"		sp1		Affected