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Security Advisory - Privilege Escalation Vulnerability in Huawei Smartphone

  • SA No:huawei-sa-20201202-01-smartphone
  • Initial Release Date: 2020-12-02
  • Last Release Date: 2020-12-23

There is a privilege escalation vulnerability on Huawei smart phones due to design defects. The attacker needs to physically contact the mobile phone and obtain higher privileges, and execute relevant commands, resulting in the user's privilege promotion. (Vulnerability ID: HWPSIRT-2020-00070)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9119. 
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20201202-01-smartphone-en

Product Name

Affected Version

Resolved Product and Version

HUAWEI Mate 10

Versions earlier than 10.0.0.189(C185E6R1P3)

10.0.0.189(C185E6R1P3)

HUAWEI Mate 30

Versions earlier than 10.1.0.156(C00E155R7P2)

10.1.0.156(C00E155R7P2)

HUAWEI Mate 30 Pro

Versions earlier than 10.1.0.156(C00E156R7P2)

10.1.0.156(C00E156R7P2)

HUAWEI P40

Versions earlier than 10.1.0.150(SP1C00E150R4P1)

10.1.0.150(SP1C00E150R4P1)

HUAWEI P40 Pro

Versions earlier than 10.1.0.150(SP1C00E150R4P1)

10.1.0.150(SP1C00E150R4P1)

Successful exploit vulnerabilities could lead to user privilege escalation.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 5.4 (AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N)

Temporal Score: 5.0 (E:F/RL:O/RC:C)

This vulnerability can be exploited only when the following conditions are present: 
The attacker needs to physically contact the mobile phone and obtain higher privileges.
Vulnerability details: 
There is a privilege escalation vulnerability on Huawei smart phones due to design defects. The attacker needs to physically contact the mobile phone and obtain higher privileges, and execute relevant commands, resulting in the user's privilege promotion.
None

The product that supports automatic update will receive a system update prompt. You can install the update to fix the vulnerability.

The vulnerability is reported to Huawei PSIRT through researchers. Huawei appreciates the collaboration between researchers and us to disclose vulnerabilities to protect Huawei customers. The detailed list of researchers is as follows:
1. Researcher of Tencent Xuanwu Lab
2. Researcher at University of Birmingham and University of Bahrain: Abdulla Aldoseri
3. Researcher at University of Birmingham: David Oswald, Flavio Garcia
2020-12-23 V1.1 UPDATED Updated the "Software Versions and Fixes" section; Updated the information in "Source";

2020-12-02 V1.0 INITIAL

None

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.