CVE-2018-8298

ChakraCore Scripting Engine Type Confusion Vulnerability

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.

Existe una vulnerabilidad de ejecución remota de código que se manifiesta en la forma en la que el motor de scripting ChakraCore gestiona los objetos en la memoria. Esto también se conoce como "Scripting Engine Memory Corruption Vulnerability". Esto afecta a ChakraCore. El ID de este CVE es diferente de CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291 y CVE-2018-8296.

The InitializeNumberFormat function in Intl.js is used to initialize an Intl.NumberFormat object, and InitializeDateTimeFormat is used for an Intl.DateTimeFormat object. There are two versions of each initializer. One is for WinGlob and the other is for ICU. The problem is that the versions for ICU don't check whether the given object has been initialized. This allows to initialize the same object multiple times which can lead to type confusion.

The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.

*Credits: N/A

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

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
2018-07-11 CVE Published
2022-03-03 Exploited in Wild
2022-03-17 KEV Due Date
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-10-14 EPSS Updated

CWE

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/104639	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/45217	2024-08-05

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298	2020-08-24

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"		Chakracore Search vendor "Microsoft" for product "Chakracore"				< 1.10.1 Search vendor "Microsoft" for product "Chakracore" and version " < 1.10.1"		-		Affected