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Security Advisory - Improper Authorization Vulnerability in Huawei Watches

  • SA No:huawei-sa-20181031-01-watch
  • Initial Release Date: Oct 31, 2018
  • Last Release Date: Oct 31, 2018

There is an improper authorization vulnerability in some Huawei watches. Due to improper permission configuration for specific operations, an attacker who obtained 
the Huawei ID bound to the watch can bypass permission verification to perform specific operations and modify some data on the watch. (Vulnerability ID: HWPSIRT-2018-09108) 

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-7926. 
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-20181031-01-watch-en

Product Name

Affected Version

Resolved Product and Version

Huawei Watch 2

Versions and earlier than OWDD.180707.001.E1

OWDD.180707.001.H1


The attacker could perform specific operations and modify some data on the watch.

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

Base Score: 3.9 (AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N)

Temporal Score: 3.4 (E:F/RL:O/RC:C)

Overall Score: 3.4


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

The attacker can physically contact the watch and obtain the Huawei ID bound to the watch.

Vulnerability details:

Due to improper permission configuration for specific operations, an attacker who obtained the Huawei ID bound to the watch can bypass permission verification to perform specific operations and modify some data on the watch.


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

This vulnerability was reported to Huawei PSIRT by Renyiduo. Huawei would like to thank Renyiduo for working with us and coordinated vulnerability disclosure to protect our customers.

2018-10-31 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.