Security Advisory - Lock-screen Bypass Vulnerability in Huawei Smartphones
- SA No:huawei-sa-20170118-01-smartphone
- Initial Release Date: 2017-01-18
- Last Release Date: 2017-01-18
There is a lock-screen bypass vulnerability in Huawei smartphones. An unauthenticated attacker could force the phone to the fastboot mode and delete the user's password file during the reboot process, then login the phone without screen lock password after reboot. (Vulnerability ID: HWPSIRT-2016-11072)
This vulnerability has been assigned CVE ID:CVE-2017-2691.
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-20170118-01-smartphone-en
|
Product Name |
Affected Version |
Resolved Product and Version |
|
Huawei P9 |
Versions earlier before EVA-AL10C00B373 |
EVA-AL10C00B373 |
|
Versions earlier before EVA-CL00C92B373 |
EVA-CL00C92B373 |
|
|
Versions earlier before EVA-DL00C17B373 |
EVA-DL00C17B373 |
|
|
Versions earlier before EVA-TL00C01B373 |
EVA-TL00C01B373 |
Successful exploit could allow an unauthenticated attacker to login the phone without screen lock password.
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 has the smartphone's unlock password.
Vulnerability details:
An unauthenticated attacker could force the phone to the fastboot mode and delete the user's password file during the reboot process, then login the phone without screen lock password after reboot.
Smart phones that support 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.
2017-01-18 V1.0 INITIAL
None
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.
