Vulnerability identifier: #VU15627

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-4342

CWE-ID: CWE-16

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local attacker to bypass security restrictions on the target system.

The weakness exists due to an error in EFI component during configuration. A local attacker can bypass security restrictions and modify protected parts of the file system.

Mitigation
Update to version 10.14.1.

Vulnerable software versions

macOS: 10.13.6 17G66, 10.14 18A391

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External links
http://support.apple.com/en-us/HT209193

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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.