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Security Advisory - Two Vulnerabilities in APPGallery of Huawei Smart Phones

  • SA No:huawei-sa-20180423-01-app
  • Initial Release Date: Apr 23, 2018
  • Last Release Date: Apr 23, 2018

There is a whitelist mechanism bypass vulnerability and an arbitrary Javascript running vulnerability in Huawei AppGallery. An attacker may set up a malicious network environment and trick user into accessing a malicious web page to bypass the whitelist mechanism, which make the malicious Javascript loaded and run in the smart phone. (Vulnerability ID: HWPSIRT-2018-04119 and HWPSIRT-2018-04120)

The two vulnerabilities have been assigned two CVE IDs: CVE-2018-7931 and CVE-2018-7932.
Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180423-01-app-en

Product Name

Affected Version

Resolved Product and Version

AppGallery

The versions before 8.0.4.301

8.0.4.301


Successful exploit could allow the attacker to load malicious code to users' mobile phones and run it.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
HWPSIRT-2018-04119:
Base Score: 4.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
Temporal Score: 4.0 (E:F/RL:O/RC:C)
HWPSIRT-2018-04120:
Base Score: 6.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
Temporal Score: 5.9 (E:F/RL:O/RC:C)
HWPSIRT-2018-04119 and HWPSIRT-2018-04120:
This vulnerability can be exploited only when the following conditions are present:
Phone access to the malicious network created by attcker and the attcker tricked a user into accessing a malicious web page.
Vulnerability details:

There is a whitelist mechanism bypass vulnerability and an arbitrary Javascript running vulnerability in Huawei AppGallery. An attacker may set up a malicious network environment and trick user into accessing a malicious web page to bypass the whitelist mechanism, which make the malicious Javascript loaded and run in the smart phone.

System will receive a update prompt. User can install the update to fix the vulnerability.

This vulnerability was reported to Huawei PSIRT by MWR InfoSecurity Labs. Huawei would like to thank MWR InfoSecurity Labs for working with us and coordinated vulnerability disclosure to protect our customers.

2018-04-23 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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