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Security Advisory - HTTP Header Injection Vulnerability in Huawei FusionAccess

  • SA No:huawei-sa-20160817-01-fusionaccess
  • Initial Release Date: Aug 17, 2016
  • Last Release Date: Aug 31, 2016

The FusionAccess is the desktop management system of Huawei FusionCloud desktop solution.

Huawei FusionAccess has an HTTP header injection vulnerability. A remote, unauthenticated attacker can exploit it to tamper with HTTP headers, causing users to access crafted URLs. (Vulnerability ID: HWPSIRT-2016-06004)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-6839.

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



Upgrade to V100R006C00



Successful exploit could allow the attacker to tamper with HTTP headers, causing users to access crafted URLs.

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

Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N)

Temporal Score: 4.1 (E:F/RL:O/RC:C)

1. Prerequisite:

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

2. Attacking procedure:

A remote, unauthenticated attacker can exploit the vulnerability to tamper with HTTP headers, causing users to access crafted URLs. 

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.

2016-08-31 V1.1 UPDATED Assigned a CVE ID to the vulnerability

2016-08-17 V1.0 INITIAL

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