Vulnerability identifier: #VU52678

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1837

CWE-ID: CWE-295

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Apple iOS
Operating systems & Components / Operating system
iPadOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper certificate validation in App Store. A remote attacker on a privileged network position can intercept network traffic and perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.4 18D52 - 14.4.2 18D70, 14.2 18B92 - 14.2.1 18B121, 14.0 18A373 - 14.0.1 18A393

iPadOS: 14.0 18A373 - 14.4.2 18D70

---

External links
http://support.apple.com/en-us/HT212317

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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