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Security Advisory - Privilege Escalation Vulnerability in Some Huawei Smart Phones

  • SA No:huawei-sa-20180613-01-smartphone
  • Initial Release Date: 2018-06-13
  • Last Release Date: 2018-06-13

Some Huawei smart phones has a privilege escalation vulnerability. An authenticated, local attacker can crafts malformed packets after tricking a user to install a malicious application and exploit this vulnerability when in the exception handling process. Successful exploitation may cause the attacker to obtain a higher privilege of the smart phones. (Vulnerability ID: HWPSIRT-2017-08053)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-17172.

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-20180613-01-smartphone-en


Product Name

Affected Version

Resolved Product and Version

LYO-L21

LYO-L21C479B107

LYO-L21C479B108

LYO-L21C577B126

LYO-L21C577B130



By exploiting this vulnerability, an attacker can cause the attacker to obtain a higher privilege of the smart phones.

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

Base Score: 7.3 (AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)

Temporal Score: 6.8 (E:F/RL:O/RC:C)

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

An attacker should trick a user to install a malicious application.

Vulnerability details:

Some Huawei smart phones has a privilege escalation vulnerability. An authenticated, local attacker can crafts malformed packets after tricking a user to install a malicious application and exploit this vulnerability when in the exception handling process. Successful exploitation may cause the attacker to obtain a higher privilege of the smart phones.

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.

2018-06-13 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.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.