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Security Advisory - Improper Authentication Vulnerability in Several Smartphones

  • SA No:huawei-sa-20200805-02-smartphone
  • Initial Release Date: Aug 05, 2020
  • Last Release Date: Aug 26, 2020

There is an improper authentication vulnerability in several smartphones. The system does not properly sign certain encrypted file, the attacker should gain the key used to encrypt the file, successful exploit could cause certain file be forged. (Vulnerability ID: HWPSIRT-2019-10020)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9244.

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-20200805-02-smartphone-en


Product Name

Affected Version

Resolved Product and Version

HONOR 20

Versions earlier than 10.0.0.196(C675E11R2P2)

10.0.0.196(C675E11R2P2)

HONOR 20 PRO

Versions earlier than 10.0.0.184(C636E3R3P1)

10.0.0.184(C636E3R3P1)

HUAWEI Mate 20

Versions earlier than 10.1.0.160(C00E160R3P8)

10.1.0.160(C00E160R3P8)

HUAWEI Mate 20 Pro

Versions earlier than 10.1.0.273(C636E7R2P4)

10.1.0.273(C636E7R2P4)

Versions earlier than 10.1.0.277(C605E7R1P5)

10.1.0.277(C605E7R1P5)

HUAWEI Mate 20 X

Versions earlier than 10.1.0.160(C00E160R2P8)

10.1.0.160(C00E160R2P8)

HUAWEI P30

Versions earlier than 10.1.0.160(C00E160R2P11)

10.1.0.160(C00E160R2P11)

HUAWEI P30 Pro

Versions earlier than 10.1.0.160(C00E160R2P8)

10.1.0.160(C00E160R2P8)

Versions earlier than 10.1.0.160(C01E160R2P8)

10.1.0.160(C01E160R2P8)

Honor View 20

Versions earlier than 10.0.0.180(C432E10R3P4)

10.0.0.180(C432E10R3P4)

Laya-AL00EP

Versions earlier than 10.1.0.160(C786E160R3P8)

10.1.0.160(C786E160R3P8)

Tony-AL00B

Versions earlier than 10.0.0.187(C00E61R2P11)

10.0.0.187(C00E61R2P11)

Tony-TL00B

Versions earlier than 10.0.0.187(C01E61R2P11)

10.0.0.187(C01E61R2P11)

Yale-L21A

Versions earlier than 10.0.0.184(C636E3R3P1)

10.0.0.184(C636E3R3P1)

Yale-L61A

Versions earlier than 10.0.0.168(C432E3R1P2)

10.0.0.168(C432E3R1P2)

Yale-L71C

Versions earlier than 10.0.0.179(C69E4R1P1)

10.0.0.179(C69E4R1P1)

HONOR 20

Versions earlier than 10.0.0.175(C00E58R4P11)

10.0.0.175(C00E58R4P11)

Versions earlier than 10.0.0.194(C01E62R8P12)

10.0.0.194(C01E62R8P12)

HONOR Magic2

Versions earlier than 10.0.0.187(C00E61R2P11)

10.0.0.187(C00E61R2P11)

Versions earlier than 10.0.0.187(C01E61R2P11)

10.0.0.187(C01E61R2P11)

HONOR V20

Versions earlier than 10.0.0.188(C00E62R2P11)

10.0.0.188(C00E62R2P11)


Successful exploit could cause certain file be forged.


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

Base Score: 6.4 (AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Temporal Score: 5.9 (E:F/RL:O/RC:C)


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

The attacker should gain the key used to encrypt the file.

Vulnerability details:

The system does not properly sign certain encrypted file, the attacker should gain the key used to encrypt the file, successful exploit could cause certain file be forged.


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.


2020-08-26 V1.1 UPDATED Updated the "Software Versions and Fixes" section;

2020-08-05 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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