#VU87754 Insecure Temporary File in macOS - CVE-2023-42896

Vulnerability identifier: #VU87754

Vulnerability risk: Medium

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-42896

CWE-ID: CWE-377

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to improper handling of temporary files in Assets. A local application can modify protected parts of the file system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

macOS: 14.0 23A344 - 14.1.2 23B2091

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External links
https://support.apple.com/en-us/HT214036

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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.