#VU47453 Input validation error in Google Android - CVE-2020-0423

Vulnerability identifier: #VU47453

Vulnerability risk: High

CVSSv4.0: 7.3 [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:P/U:Amber]

CVE-ID: CVE-2020-0423

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input within the Binder component in OS kernel. A remote attacker can create a specially crafted file, trick the victim into opening it and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 8.0 - 8.1, 9.0, 10 - 11

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External links
https://source.android.com/security/bulletin/2020-10-01

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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. However, proof of concept for this vulnerability is available.