Improper Authentication in Huawei P20

1) Improper Authentication

EUVDB-ID: #VU27913

Risk: Low

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

CVE-ID: CVE-2020-9073

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass authentication process.

The vulnerability exists due to the affected software insufficiently validate the user's identity when an user wants to do certain operation. An attacker with physical access can bypass the limit of student mode function.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei P20: before 10.0.0.156

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200513-01-smartphone-en

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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