Remote code execution in Apple iOS and iPadOS

1) Buffer overflow

EUVDB-ID: #VU28536

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2020-9859

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A remote attacker can use a specially crafted application to trigger memory corruption and execute arbitrary code on the target system with kernel privileges.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 13.0 17A577 - 13.5 17F75

iPadOS: 13.1.1 - 13.5

CPE2.3

• cpe:2.3:o:apple:apple_ios:13.0:17A577:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.1:17A844:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.1.1:17A854:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.1.2:17A860:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.1.3:17A878:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.2:17B84:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.2.2:17B102:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.2.3:17B111:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.3:17C54:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:13.3.1:17D50:*:*:*:*:*:*
• cpe:2.3:o:apple:ipados:13.1.1:*:*:*:*:*:*:*

External links

https://support.apple.com/en-us/HT211214

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.