Privilege escalation in Apple macOS High Sierra



Published: 2017-11-29 | Updated: 2017-11-30
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-13872
CWE-ID CWE-264
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		macOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Privilege escalation

EUVDB-ID: #VU9434

Risk: Low

CVSSv3.1: 7.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2017-13872

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to insufficient security restrictions. A local attacker can supply an empty password for the 'root' user account via the System Preferences > Users & Groups menu and gain elevated privileges to the root account.

Mitigation

Update to version 10.3.

Vulnerable software versions

macOS: 10.13 17A365 - 10.13.1 17B48

External links

http://support.apple.com/en-us/HT208315


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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