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Security Advisory - UE Measurement Leak Vulnerability in Huawei P8 Phones

  • SA No:Huawei-SA-20151029-01-UE
  • Initial Release Date: Oct 29, 2015
  • Last Release Date: Nov 18, 2015

An information leak vulnerability exists in Huawei P8 Phones. Before sending a specific signal to a base station, the P8 Phone does not check its own security status. An attacker uses a fake base station to construct a specific scenario and obtain the specific signal which includes user equipment (UE) measurements of the signal strengths. (Vulnerability ID: HWPSIRT-2015-07035)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-8224.

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-459832.htm

Product Name

Affected Version

Resolved Product and Version

P8

Versions earlier than GRA-CL00C92B210

GRA-CL00C92B210

Versions earlier than GRA-L09C432B200

GRA-L09C432B200

Versions earlier than GRA-TL00C01B210

GRA-TL00C01B210

Versions earlier than GRA-UL00C00B210

GRA-UL00C00B210

By exploiting this vulnerability, an attacker can use a fake base station to obtain UE measurements of the signal strengths.

The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).

Base Score: 2.6 (AV:N/AC:H/Au:N/C:P/I:N/A:N)

Temporal Score: 2.0 (E:F/RL:OF/RC:C)

1. Prerequisite:

The attacker has to obtain information before security activation of the UE is completed.

2. Attacking procedure:

An attacker uses a fake station to construct a scenario and sends the specific signal to the UE. The UE does not check its own security status before replying to this signal, which enables the attacker to receive the reply before security activation of the UE is completed. The reply includes measurements of the signal strengths from the serving cell and neighbor cells.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/security/psirt/report-vulnerabilities/index.htm.


This vulnerability was reported by Ravishankar Borgaonkar and Altaf Shaik. Huawei PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.

Huawei express our appreciation for Ravishankar Borgaonkar and Altaf Shaik’s concerns on Huawei products. 

For security problems about Huawei products and solutions, please contactPSIRT@huawei.com.

For general problems about Huawei products and solutions, please directly contact Huawei TAC (Huawei Technical Assistance Center) to request the configuration or technical assistance.


2015-11-18 V1.1UPDATED Added CVE ID

2015-10-29 V1.0 INITIAL
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Complete information for providing feedback on security vulnerability of Huawei products, getting support for Huawei security incident response services, and obtaining Huawei security vulnerability information, is available on Huawei's worldwide website at http://www.huawei.com/en/security/psirt/.