There is an information leakage vulnerability. Because an interface does not verify authorization correctly, attackers can exploit an application with the authorization of phone state to obtain user location additionally. (Vulnerability ID: HWPSIRT-2018-03117)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-7957.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:
Resolved Product and Version
Attacker can get the user's location information additionally through getting the phone state without location authorization.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 3.3 (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
Temporal Score: 3.1 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
Application uses the vulnerable interface and get the user's authorization of phone state.
Because an interface does not verify authorization correctly, attackers can exploit an application with the authorization of phone state to obtain user location additionally.
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 System and Software Security Lab in Fudan University. Huawei would like to thank them for working with us and coordinated vulnerability disclosure to protect our customers.
2018-07-04 V1.0 INITIAL
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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.