// For flags

CVE-2018-8643

Microsoft Windows JScript Array concat Uninitialized Pointer Remote Code Execution Vulnerability

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.

Existe una vulnerabilidad de ejecución remota de código que se manifiesta en la forma en la que el motor de scripting gestiona los objetos en la memoria en Internet Explorer. Esto también se conoce como "Scripting Engine Memory Corruption Vulnerability". Esto afecta a Internet Explorer 9, Internet Explorer 11 e Internet Explorer 10.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Windows JScript. 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 implementation of the Array.concat method in JScript. By creating an out-of-memory condition, an attacker can trigger access to a pointer prior to initialization. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: Yu Haiwan and Wu HongJun from Nanyang Technological University
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
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
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-03-14 CVE Reserved
  • 2018-12-12 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-27 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
9
Search vendor "Microsoft" for product "Internet Explorer" and version "9"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Server 2008
Search vendor "Microsoft" for product "Windows Server 2008"
-sp2
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
10
Search vendor "Microsoft" for product "Internet Explorer" and version "10"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Server 2012
Search vendor "Microsoft" for product "Windows Server 2012"
--
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
--
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
1607
Search vendor "Microsoft" for product "Windows 10" and version "1607"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
1703
Search vendor "Microsoft" for product "Windows 10" and version "1703"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
1709
Search vendor "Microsoft" for product "Windows 10" and version "1709"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
1803
Search vendor "Microsoft" for product "Windows 10" and version "1803"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 10
Search vendor "Microsoft" for product "Windows 10"
1809
Search vendor "Microsoft" for product "Windows 10" and version "1809"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 7
Search vendor "Microsoft" for product "Windows 7"
-sp1
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows 8.1
Search vendor "Microsoft" for product "Windows 8.1"
-pro_n
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Rt 8.1
Search vendor "Microsoft" for product "Windows Rt 8.1"
--
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in 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"
x64
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Server 2012
Search vendor "Microsoft" for product "Windows Server 2012"
r2
Search vendor "Microsoft" for product "Windows Server 2012" and version "r2"
-
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Server 2016
Search vendor "Microsoft" for product "Windows Server 2016"
--
Safe
Microsoft
Search vendor "Microsoft"
Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows Server 2019
Search vendor "Microsoft" for product "Windows Server 2019"
--
Safe