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Security Advisory - Improper Authentication Vulnerability on Smartphones

  • SA No:huawei-sa-20181010-01-applock
  • Initial Release Date: Oct 10, 2018
  • Last Release Date: Oct 10, 2018

There is an improper authentication vulnerability on smartphones. App Lock is a function to prevent unauthorized use of apps on smartphones, an attacker could directly change the lock password after a series of operations. Successful exploit could allow the attacker to use the application which is locked. (Vulnerability ID: HWPSIRT-2018-06006)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-7989.

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-20181010-01-applock-en


Product Name

Affected Version

Resolved Product and Version

Mate 10 pro

The versions before BLA-AL00B 8.1.0.326(C00)

BLA-AL00B 8.1.0.326(C00)


Successful exploit could allow the attacker to use the application which is locked.


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:H/I:N/A:N)

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


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

The attacker gets the device.

Vulnerability details:

App Lock is a function to prevent unauthorized use of apps on smartphones, an attacker could directly change the lock password after a series of operations. Successful exploit could allow the attacker to use the application which is locked.


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.


2018-10-10 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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