CVE-2017-13872

Apple macOS 10.13.1 (High Sierra) - 'Blank Root' Local Privilege Escalation

Severity Score

8.1

*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 High Sierra before Security Update 2017-001 is affected. The issue involves the "Directory Utility" component. It allows attackers to obtain administrator access without a password via certain interactions involving entry of the root user name.

Se ha descubierto un problema en algunos productos Apple. Las versiones de macOS High Sierra anteriores a la actualización de seguridad 2017-001 se han visto afectadas. El problema implica el componente "Directory Utility". Esto permite que los atacantes obtengan acceso de administrador sin contraseña mediante ciertas interacciones relacionadas con la entrada del nombre de usuario root.

Enable and set root account to a chosen password on unpatched macOS High Sierra hosts with either Screen Sharing or Remote Management enabled.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

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

2017-08-30 CVE Reserved
2017-11-29 CVE Published
2017-11-30 First Exploit
2024-08-05 CVE Updated
2024-08-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-287: Improper Authentication

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/101981	Third Party Advisory
http://www.securitytracker.com/id/1039875	Third Party Advisory
https://arstechnica.com/information-technology/2017/11/macos-bug-lets-you-log-in-as-admin-with-no-password-required	Mitigation
https://github.com/rapid7/metasploit-framework/pull/9302	X_refsource_misc
https://support.apple.com/HT208331	X_refsource_confirm
https://www.wired.com/story/macos-update-undoes-apple-root-bug-patch	Media Coverage

URL	Date	SRC
https://www.exploit-db.com/exploits/43201	2024-08-05
https://www.exploit-db.com/exploits/43248	2024-08-05
https://github.com/giovannidispoto/CVE-2017-13872-Patch	2017-11-30
https://objective-see.com/blog/blog_0x24.html	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/HT208315	2017-12-30

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"				10.13.0 Search vendor "Apple" for product "Mac Os X" and version "10.13.0"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.1 Search vendor "Apple" for product "Mac Os X" and version "10.13.1"		-		Affected