CVE-2015-7047

Apple Mac OSX / iOS - Unsandboxable Kernel Use-After-Free in Mach Vouchers

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The kernel in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 allows local users to gain privileges via a crafted mach message that is misparsed.

El kernel en Apple iOS en versiones anteriores a 9.2, OS X en versiones anteriores a 10.11.2, tvOS en versiones anteriores a 9.1 y watchOS en versiones anteriores a 2.1 permite a usuarios locales obtener privilegios a través de un mensaje mach manipulado que no analiza correctamente la gramática.

The mach voucher subsystem fails to correctly handle spoofed no-more-senders messages. ipc_kobject_server will be called for mach messages sent to kernel-owned mach ports. If the msgh_id of the message can't be found in the mig_buckets hash table then this function calls ipc_kobject_notify. Note that this is the same code path which would be taken for a real no-more-senders notification message but there's nothing stopping user-space from also just sending one.

*Credits: N/A

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

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-09-16 CVE Reserved
2015-12-10 CVE Published
2016-01-28 First Exploit
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (15)

URL	Tag	Source
http://www.securityfocus.com/bid/78719	Vdb Entry
http://www.securitytracker.com/id/1034344	Vdb Entry

URL	Date	SRC
https://www.exploit-db.com/exploits/39377	2016-01-28
https://www.exploit-db.com/exploits/39371	2024-08-06
https://www.exploit-db.com/exploits/39374	2024-08-06
https://www.exploit-db.com/exploits/39373	2024-08-06
https://www.exploit-db.com/exploits/39375	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html	2019-03-08
http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html	2019-03-08
http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html	2019-03-08
http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html	2019-03-08
https://support.apple.com/HT205635	2019-03-08
https://support.apple.com/HT205637	2019-03-08
https://support.apple.com/HT205640	2019-03-08
https://support.apple.com/HT205641	2019-03-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				<= 2.0 Search vendor "Apple" for product "Watchos" and version " <= 2.0"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				<= 9.0 Search vendor "Apple" for product "Tvos" and version " <= 9.0"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				<= 9.1 Search vendor "Apple" for product "Iphone Os" and version " <= 9.1"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				<= 10.11.1 Search vendor "Apple" for product "Mac Os X" and version " <= 10.11.1"		-		Affected