#VU53359 Security restrictions bypass in macOS - CVE-2020-9898

Vulnerability identifier: #VU53359

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-9898

CWE-ID: CWE-264

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 bypass sandbox restrictions.

The vulnerability exists due to application does not properly impose security restrictions within WebDav implementation. A sandboxed process can circumvent sandbox restrictions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

macOS: 10.13 17A365 - 10.15.5 19F101

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External links
https://support.apple.com/en-us/HT211289

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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.