CVE-2015-6143

Microsoft Internet Explorer CAttrArray Use-After-Free Remote Code Execution Vulnerability

Severity Score

9.3

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Microsoft Internet Explorer 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2015-6140, CVE-2015-6142, CVE-2015-6153, CVE-2015-6158, CVE-2015-6159, and CVE-2015-6160.

Microsoft Internet Explorer 11 permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria) a través de un sitio web manipulado, también conocida como 'Internet Explorer Memory Corruption Vulnerability', una vulnerabilidad diferente a CVE-2015-6140, CVE-2015-6142, CVE-2015-6153, CVE-2015-6158, CVE-2015-6159 y CVE-2015-6160.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The vulnerability relates to how Internet Explorer processes style attributes. By manipulating a document's elements an attacker can force an array allocated by a CAttrArray object to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

*Credits: Zheng Huang of Baidu Scloud XTeam

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-08-14 CVE Reserved
2015-12-08 CVE Published
2024-08-06 CVE Updated
2024-11-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (3)

URL	Tag	Source
http://www.securitytracker.com/id/1034315	Vdb Entry
http://www.zerodayinitiative.com/advisories/ZDI-15-584	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-124	2018-10-12

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"				11 Search vendor "Microsoft" for product "Internet Explorer" and version "11"		-		Affected