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Security Advisory - Weak Encryption Algorithm Vulnerability in Huawei Servers

  • SA No:huawei-sa-20160824-02-server
  • Initial Release Date: Aug 24, 2016
  • Last Release Date: Aug 24, 2016

Some Huawei servers have a weak encryption algorithm vulnerability in the iBMC (Intelligent Baseboard Management Controller). The software provide an option for users to select SSL encryption algorithms. If an insecure encryption algorithm is selected, an attacker may decrypt encrypted data, causing information leaks. (Vulnerability ID: HWPSIRT-2016-07019)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-6899.

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:

Product Name

Affected Version

Resolved Product and Version

RH1288 V3



RH2288 V3



RH2288H V3



RH5885 V3



XH620 V3



XH622 V3



XH628 V3



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

The vulnerability classification has been performed by using the CVSSv2 scoring system (

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 SSL encryption algorithms. If a user selects an insecure encryption algorithm, an attacker can decrypt encrypted 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

This vulnerability was discovered by Huawei internal tester.

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

To report a security vulnerability in Huawei products and solutions, please send it to For details, please visit

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