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Security Advisory - Improper Authentication Vulnerability in Some Huawei Smartphones

  • SA No:huawei-sa-20200513-01-smartphone
  • Initial Release Date: May 13, 2020
  • Last Release Date: May 13, 2020

There is an improper authentication vulnerability in some Huawei smartphones. The vulnerability is due to that when an user wants to do certain operation, the software insufficiently validate the user's identity. Attackers need to physically access the smartphone to exploit this vulnerability. Successful exploit could allow the attacker to bypass the limit of student mode function. (Vulnerability ID: HWPSIRT-2019-08044)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9073.

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-20200513-01-smartphone-en


Product Name

Affected Version

Resolved Product and Version

P20

Versions earlier than 10.0.0.156(C00E156R1P4)

10.0.0.156(C00E156R1P4)


Successful exploit could allow the attacker to bypass the limit of student mode function.


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

Base Score: 3.5 (AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

Temporal Score: 3.3 (E:F/RL:O/RC:C)

Overall Score: 3.3


This vulnerability can be exploited only when the following conditions are present:

The attacker could access the victim's smartphone physically.

Vulnerability details:

There is an improper authentication vulnerability in some Huawei smartphones. The vulnerability is due to that when an user wants to do certain operation, the software insufficiently validate the user's identity. Attackers need to physically access the smartphone to exploit this vulnerability. Successful exploit could allow the attacker to bypass the limit of student mode function.

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

This vulnerability was discovered by external researcher.

2020-05-13 V1.0 INITIAL

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.