CVE-2022-46689

macOS Dirty Cow Arbitrary File Write Local Privilege Escalation

Severity Score

7.0

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A race condition was addressed with additional validation. This issue is fixed in tvOS 16.2, macOS Monterey 12.6.2, macOS Ventura 13.1, macOS Big Sur 11.7.2, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.2 and iPadOS 16.2, watchOS 9.2. An app may be able to execute arbitrary code with kernel privileges.

Se abordó una condición de ejecución con validación adicional. Este problema se solucionó en tvOS 16.2, macOS Monterey 12.6.2, macOS Ventura 13.1, macOS Big Sur 11.7.2, iOS 15.7.2 y iPadOS 15.7.2, iOS 16.2 y iPadOS 16.2, watchOS 9.2. Una aplicación puede ejecutar código arbitrario con privilegios del kernel.

XNU VM suffers from a copy-on-write bypass vulnerability due to incorrect shadow creation logic used during unaligned vm_map_copy operations.

*Credits: N/A

CVSS Scores

NISTv3.1 7.0

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-12-07 CVE Reserved
2022-12-15 CVE Published
2024-08-03 CVE Updated
2024-10-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (16)

URL	Tag	Source
http://seclists.org/fulldisclosure/2022/Dec/20	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/21	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/23	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/24	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/25	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/26	Mailing List
http://seclists.org/fulldisclosure/2022/Dec/27	Mailing List
https://github.com/apple-oss-distributions/xnu/blob/xnu-8792.61.2/tests/vm/vm_unaligned_copy_switch_race.c
https://github.com/zhuowei/MacDirtyCowDemo

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/en-us/HT213530	2023-01-09
https://support.apple.com/en-us/HT213531	2023-01-09
https://support.apple.com/en-us/HT213532	2023-01-09
https://support.apple.com/en-us/HT213533	2023-01-09
https://support.apple.com/en-us/HT213534	2023-01-09
https://support.apple.com/en-us/HT213535	2023-01-09
https://support.apple.com/en-us/HT213536	2023-01-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Safari Search vendor "Apple" for product "Safari"				< 16.2 Search vendor "Apple" for product "Safari" and version " < 16.2"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 15.7.2 Search vendor "Apple" for product "Ipados" and version " < 15.7.2"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 15.7.2 Search vendor "Apple" for product "Iphone Os" and version " < 15.7.2"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				>= 16.0 < 16.1.2 Search vendor "Apple" for product "Iphone Os" and version " >= 16.0 < 16.1.2"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				< 11.7.2 Search vendor "Apple" for product "Macos" and version " < 11.7.2"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 12.0 < 12.6.2 Search vendor "Apple" for product "Macos" and version " >= 12.0 < 12.6.2"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 13.0 < 13.1 Search vendor "Apple" for product "Macos" and version " >= 13.0 < 13.1"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 16.2 Search vendor "Apple" for product "Tvos" and version " < 16.2"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 9.2 Search vendor "Apple" for product "Watchos" and version " < 9.2"		-		Affected