CVE-2018-4233

Apple Safari CreateThis Type Confusion Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Se ha descubierto un problema en algunos productos Apple. Las versiones de iOS anteriores a la 11.4 se han visto afectadas. Se han visto afectadas las versiones de Safari anteriores a la 11.1.1, las versiones de iCloud anteriores a la 7.5 en Windows, las versiones de iTunes anteriores a la 12.7.5 en Windows, las versiones de tvOS anteriores a la 11.4 y las versiones de watchOS anteriores a la 4.3.1 se han visto afectadas. El problema afecta al componente "WebKit". Permite que atacantes remotos ejecuten código arbitrario o provoquen una denegación de servicio (corrupción de memoria y cierre inesperado de la aplicación) mediante una página web manipulada.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. 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 JIT. By performing actions in JavaScript, an attacker can trigger a type confusion condition. An attacker can leverage this vulnerability to execute code under the context of the current process.

*Credits: Samuel Gross (saelo)

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

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2018-01-02 CVE Reserved
2018-06-04 CVE Published
2023-10-30 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (14)

URL	Tag	Source
http://packetstormsecurity.com/files/153148/Safari-Webkit-Proxy-Object-Type-Confusion.html	X_refsource_misc
http://www.securitytracker.com/id/1041029	Third Party Advisory
https://github.com/saelo/cve-2018-4233
https://github.com/saelo/pwn2own2018
https://saelo.github.io/presentations/blackhat_us_18_attacking_client_side_jit_compilers.pdf

URL	Date	SRC
https://www.exploit-db.com/exploits/45998	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://security.gentoo.org/glsa/201808-04	2024-07-03
https://support.apple.com/HT208848	2024-07-03
https://support.apple.com/HT208850	2024-07-03
https://support.apple.com/HT208851	2024-07-03
https://support.apple.com/HT208852	2024-07-03
https://support.apple.com/HT208853	2024-07-03
https://support.apple.com/HT208854	2024-07-03
https://usn.ubuntu.com/3687-1	2024-07-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"	Icloud Search vendor "Apple" for product "Icloud"	< 7.5 Search vendor "Apple" for product "Icloud" and version " < 7.5"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Apple Search vendor "Apple"	Itunes Search vendor "Apple" for product "Itunes"	< 12.7.5 Search vendor "Apple" for product "Itunes" and version " < 12.7.5"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Apple Search vendor "Apple"		Safari Search vendor "Apple" for product "Safari"				< 11.1.1 Search vendor "Apple" for product "Safari" and version " < 11.1.1"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 11.4 Search vendor "Apple" for product "Iphone Os" and version " < 11.4"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 11.4 Search vendor "Apple" for product "Tvos" and version " < 11.4"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 4.3.1 Search vendor "Apple" for product "Watchos" and version " < 4.3.1"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected