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Security Advisory - FRP Bypass Vulnerability in Huawei Smart Phones

  • SA No:huawei-sa-20170715-01-frpbypass
  • Initial Release Date: Jul 15, 2017
  • Last Release Date: Aug 11, 2017

There is Factory Reset Protection (FRP) bypass security vulnerability in some Huawei smart phones. When re-configuring the mobile phone using the factory reset protection (FRP) function, an attacker can login the configuration flow by some secret code and can perform some operations to update the Google account. As a result, the FRP function is bypassed. (Vulnerability ID: HWPSIRT-2017-06011)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-8173.

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-20170715-01-frpbypass-en

Product Name

Affected Version

Resolved Product and Version

Maya-L02

Earlier than Maya-L02C636B126 versions

Upgrade to Maya-L02C636B126

VKY-L09

Earlier than VKY-L29C10B151 versions

VKY-L29 C10B151

VTR-L29

Earlier than VTR-L29C10B151 versions

Upgrade to VTR-L29C10B151

Vicky-AL00A

Earlier than Vicky-AL00AC00B162 versions

Upgrade to Vicky-AL00AC00B162

Victoria-AL00A

Earlier than Victoria-AL00AC00B167 versions

Upgrade to Victoria-AL00AC00B167

Warsaw-AL00

Earlier than Warsaw-AL00C00B200 versions

Upgrade to Warsaw-AL00C00B200


An attacker can modify the configuration of the smart phone and cause the FRP bypass.

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)

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

Attacker gets the smart phone device.

Vulnerability details:

When re-configuring the mobile phone using the factory reset protection (FRP) function, an attacker can login the configuration flow by some secret code and can perform some operations to update the Google account. As a result, the FRP function is bypassed.

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 Pedro Simoes from Portugal Journalist. Huawei would like to thank Pedro Simoes for working with us and coordinated vulnerability disclosure to protect our customers.

2017-08-11 V1.1 UPDATED Updated the "Software Versions and Fixes" section; 

2017-07-15 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.

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