#VU26435 Permissions, Privileges, and Access Controls in watchOS - CVE-2020-3883

Vulnerability identifier: #VU26435

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-3883

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
watchOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper permission checks in AppleMobileFileIntegrity. A remote attacker can trick a victim to install a malicious application and cause the application to be able to use arbitrary entitlements.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

watchOS: 6.0 - 6.1.3

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External links
https://seclists.org/fulldisclosure/2020/Mar/33
https://support.apple.com/en-il/HT211103

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.