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Security Advisory - Information Exposure Vulnerability in Huawei Products

  • SA No:huawei-sa-20170920-01-encryption
  • Initial Release Date: Sep 20, 2017
  • Last Release Date: Sep 20, 2017

Some Huawei products have an information exposure vulnerability. Encryption keys are stored in the system. The attacker can implement reverse engineering to obtain the encryption keys, causing information exposure. (Vulnerability ID: HWPSIRT-2017-07133)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-2704.

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:

Product Name

Affected Version

Resolved Product and Version

Smarthome and earlier versions

HiAPP and earlier versions


2.0.0 and earlier versions


HwParentControlParent and earlier versions


1.5.3 and earlier versions


HiWallet and earlier versions

Huawei Pay and earlier versions

Skytone and earlier versions

HwCloudDrive(EMUI6.0) and earlier versions

HwPhoneFinder(EMUI6.0) and earlier versions

HwPhoneFinder(EMUI5.1) and earlier versions

HiCinema and earlier versions

HuaweiWear and earlier versions

HiHealthApp and earlier versions

Attackers can obtain the encryption keys, causing information exposure.

The vulnerability classification has been performed by using the CVSSv3 scoring system (

Base Score: 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Temporal Score: 4.9 (E:F/RL:O/RC:C)

1. Prerequisite:

The attacker could obtain the software of affected products;

2. Attacking procedure:

Encryption keys are stored in the system. The attacker can implement reverse engineering to obtain the encryption keys, causing information exposure. 

The affected products could get the update patch from Huawei HiAPP. You can install the update to fix the vulnerability.

This vulnerability was discovered by Huawei internal tester.

2017-09-20 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.

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