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Security Advisory - Phone Finder Bypass Vulnerability in Huawei Smart Phones

  • SA No:huawei-sa-20170118-05-smartphone
  • Initial Release Date: Jan 18, 2017
  • Last Release Date: Jan 18, 2017

Phone Finder is a Huawei security method that was designed to make sure someone can't just wipe and factory reset the phone if user lost it or it was stolen. The Phone Finder in some Huawei smart phones can be bypass. An attacker can bypass the Phone Finder by special steps and enter the System Setting. (Vulnerability ID: HWPSIRT-2016-12002)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-2703.

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-20170118-05-smartphone-en


Product Name

Affected Version

Resolved Product and Version

Mate 9

Versions earlier before MHA-AL00BC00B156

MHA-AL00BC00B156

Versions earlier before MHA-CL00BC00B156

MHA-CL00BC00B156

Versions earlier before MHA-DL00BC00B156

MHA-DL00BC00B156

Versions earlier before MHA-TL00BC00B156

MHA-TL00BC00B156

P9

Versions earlier before EVA-AL10C00B373

EVA-AL10C00B373

Versions earlier before EVA-CL10C00B373

EVA-CL10C00B373

Versions earlier before EVA-DL10C00B373

EVA-DL10C00B373

Versions earlier before EVA-TL10C00B373

EVA-TL10C00B373


By exploiting this vulnerability, an attacker can bypass the Phone Finder and enter the System Setting.


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

Base Score: 4.6 (AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Temporal Score: 4.3 (E:F/RL:O/RC:C)

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

1.The attacker gets the smartphone device.

Vulnerability details:

The Phone Finder in some Huawei smart phones can be bypass. An attacker can bypass the Phone Finder by special steps and enter the System Setting.

Mobile phones that support automatic update will receive a system update prompt. You can install the update to fix the vulnerabilities.

This vulnerability was discovered by Huawei internal tester.

2017-01-18 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.