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Security Advisory - FRP Bypass Vulnerability on Some Huawei Smartphones

  • SA No:huawei-sa-20190228-01-smartphone
  • Initial Release Date:2019-02-28
  • Last Release Date:2019-02-28

There is a Factory Reset Protection (FRP) bypass security vulnerability in some Huawei smart phones. When re-configuring the mobile phone using the FRP function, an attacker can delete the activation lock after a series of operation, As a result, the FRP function is bypassed and the attacker gains access to the smartphone. (Vulnerability ID: HWPSIRT-2018-11009)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-5306.
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-20190228-01-smartphone-en

Product Name

Affected Version

Resolved Product and Version

P20

The versions before Emily-AL00A 9.0.0.167(C00E81R1P21T8)

Emily-AL00A 9.0.0.167(C00E81R1P21T8)
Successful exploit could allow an attacker to bypass the FRP and gain access to the smartphone.
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:H/A:N)
Temporal Score: 4.3 (E:F/RL:O/RC:C)
Overall Score: 4.3
This vulnerability can be exploited only when the following conditions are present:
The attacker has got the smartphone.
Vulnerability details:
There is a Factory Reset Protection (FRP) bypass security vulnerability in some Huawei smart phones. When re-configuring the mobile phone using the FRP function, an attacker can delete the activation lock after a series of operation, As a result, the FRP function is bypassed and the attacker gains access to the smartphone.
None


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 Huawei internal tester.


2019-02-28 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.