Remote code execution in Apple iOS 12

1) Type Confusion

EUVDB-ID: #VU70195

Risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2022-42856

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in WebKit. A remote attacker can trick the victim to visit a specially crafted website, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Apple iOS: 12.0 16A366 - 12.5.6 16H71

CPE2.3

• cpe:2.3:o:apple:apple_ios:12.0:16A366:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.0:16A367:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.0.1:16A404:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.0.1:16A405:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1:16B92:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1:16B93:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1:16B94:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1.1:16C50:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1.2:16C101:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:12.1.2:16C104:*:*:*:*:*:*

External links

https://support.apple.com/en-us/HT213597

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?

Yes. This vulnerability is being exploited in the wild.