CVE-2016-4678

Apple OS X AppleSMC smcHandleYPCEvent Privilege Escalation Vulnerability

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in certain Apple products. macOS before 10.12.1 is affected. The issue involves the "AppleSMC" component. It allows local users to gain privileges or cause a denial of service (NULL pointer dereference) via unspecified vectors.

Se ha descubierto un problema en ciertos productos Apple. macOS en versiones anteriores a 10.12.1 está afectado. El problema involucra al componente "AppleSMC". Esto permite a usuarios locales obtener privilegios o provocar una denegación de servicio (referencia a puntero NULL) a través de vectores no especificados.

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Apple OS X. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within AppleSMC's smcHandleYPCEvent. The process does not properly validate the existence of an object prior to performing operations on it. An attacker can leverage this vulnerability to escalate privileges under the context of the kernel.

*Credits: daybreaker@Minionz

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-05-11 CVE Reserved
2016-10-24 CVE Published
2024-05-23 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/93852	Third Party Advisory
http://www.securitytracker.com/id/1037086	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/HT207275	2017-07-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.12.0 Search vendor "Apple" for product "Mac Os X" and version " <= 10.12.0"		-		Affected