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Security Advisory - Information Leak Vulnerability in Some Huawei Servers

  • SA No:huawei-sa-20160817-02-server
  • Initial Release Date: Aug 17, 2016
  • Last Release Date: Dec 28, 2016

Some Huawei servers have an information leak vulnerability. The servers allow users to select security encryption algorithms. If an insecure encryption algorithm is selected, an attacker may decrypt ciphertext data, causing information leaks. (Vulnerability ID: HWPSIRT-2016-07019)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-6838.

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160817-02-server-en

Product Name

Affected Version

Resolved Product and Version

X6800

V100R003C00

V100R003C00SPC606 

XH620 V3

V100R003C00

V100R003C00SPC606

RH1288 V3

V100R003C00

V100R003C00SPC613 

RH2288 V3

V100R003C00

V100R003C00SPC617 

CH140 V3

V100R001C00

V100R001C00SPC122

CH226 V3

V100R001C00

V100R001C00SPC122

CH220 V3

V100R001C00

V100R001C00SPC201

CH121 V3

V100R001C00

V100R001C00SPC202

CH222 V3

V100R001C00

V100R001C00SPC202

iBMC

V200R001C10

Upgrade to V200R001C50

V200R001C20

V200R001C30

RH5885 V3

V100R003C01

V100R003C10SPC107


Successful exploit could allow an attacker to decrypt ciphertext data, causing information leaks.

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

Base Score: 4.3 (AV:N/AC:M/Au:N/C:P/I:N/A:N)

Temporal Score: 3.6 (E:F/RL:O/RC:C)

1. Prerequisite:

The attacker has access to the network of the affected devices.

2. Attacking procedure:

The servers provide an option for users to select SSH encryption algorithms. If a user selects an insecure encryption algorithm, an attacker can decrypt ciphertext data, causing information leaks.

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 discovered by Huawei internal tester.

2016-12-28 V1.2 UPDATED Updated the affected version, software fixes

2016-08-31 V1.1 UPDATED Updated the affected version, software fixes and CVE ID

2016-08-17 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.