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Security Advisory - Hardcoded SSH Key Vulnerability in Some Huawei Storage Products

  • SA No:huawei-sa-20161017-01-storage
  • Initial Release Date: Oct 17, 2016
  • Last Release Date: Oct 20, 2016

Some Huawei storage products have a hardcoded SSH key vulnerability. Different nodes of the devices use SSH to encrypt communication data and authenticate each other based on public and private keys. Since the SSH public and private keys are hardcoded, an attacker may obtain the keys and log in to such a device through SSH. (Vulnerability ID: HWPSIRT-2016-05005)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-8754.
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-20161017-01-storage-en

Product Name

Affected Version

Resolved Product and Version

OceanStor 5600 V3

V300R003C00

Upgrade to V300R003C10SPC100

The attacker can log in to the device through SSH. However, the attacker cannot launch remote attacks, because only a limited number of internal IP addresses can be used for communication between different nodes.
The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).
Base Score: 5.8 (AV:A/AC:L/Au:N/C:P/I:P/A:P) 
Temporal Score: 4.8 (E:F/RL:O/RC:C)
1. Prerequisite:
The attacker has obtained the public and private keys.
2. Attacking procedure:
The attacker uses the obtained public and private keys to log in to the device through SSH and intercept and interrupt communication between different nodes of the device.

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/psirt/report-vulnerabilities.

This vulnerability was reported to Huawei PSIRT by Luiz Angelo Daros de Luca. Huawei would like to thank Luiz Angelo Daros de Luca for working with us and coordinated vulnerability disclosure to protect our customers.

2016-10-20 V1.1 UPDATED Add the CVE-ID

2016-10-17 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.