Privilege escalation in several Huawei Smartphones

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU48797

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9119

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user  to escalate privileges on the system.

The vulnerability exists due to design defects. An administrator with physical access can execute relevant commands and escalate privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei Mate 10: before 10.0.0.189(C185E6R1P3)

Huawei Mate 30: before 10.1.0.156(C00E155R7P2)

Huawei Mate 30 Pro: before 10.1.0.156(C00E156R7P2)

Huawei P40: before 10.1.0.150(SP1C00E150R4P1)

Huawei P40 Pro: before 10.1.0.150(SP1C00E150R4P1)

CPE2.3

• cpe:2.3:a:huawei:huawei_mate_10:*:*:*:*:*:*:*:
• cpe:2.3:a:huawei:huawei_mate_30:*:*:*:*:*:*:*:
• cpe:2.3:a:huawei:huawei_mate_30_pro:*:*:*:*:*:*:*:
• cpe:2.3:a:huawei:huawei_p40:*:*:*:*:*:*:*:
• cpe:2.3:a:huawei:huawei_p40_pro:*:*:*:*:*:*:*:

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20201202-01-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.