This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy (update in May 2018) >

Security Advisory - Privilege Escalation Vulnerability in Huawei Multiple Smart Phones

  • SA No:huawei-sa-20160926-01-smartphone
  • Initial Release Date: 2016-09-26
  • Last Release Date: 2016-09-26

There is a privilege escalation vulnerability in Android kernel due to the lack of a parameters check. An attacker may trick a user into installing a malicious application, and the application can modify the data of kernel to crash the system or escalate user privilege. (Vulnerability ID: HWPSIRT-2015-08031)
This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-3857.
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-20160926-01-smartphone-en

Product Name

Affected Version

Resolved Product and Version

Honor 6/ Honor 6 Plus/ Honor 7

Versions earlier than 6.9.16

6.9.16[1]


[1] The product user who submits the upgrade application in Huawei club website (https://www.wenjuan.com/s/YBNzIj/) will receive a system update prompt, install the update can fix the vulnerability.

Attackers can crash the system or elevate their privileges by exploiting the vulnerability successful.
The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).

Base Score: 6.2 (AV:L/AC:H/Au:N/C:C/I:C/A:C) 

Temporal Score: 5.1 (E:F/RL:O/RC:C)

1. Prerequisite:
The attacker successfully tricks a user into installing a malicious application on the smart phone;
2. Attacking procedure:
An attacker may trick a user into installing a malicious application, and the application can modify the data of kernel to crash the system or escalate user privilege.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.

This vulnerability was reported to Google by Chiachih Wu, Yuan-Tsung Lo and Xuxian Jiang from C0RE team of Qihoo360.
2016-09-26 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.