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Security Advisory - Directory Traversal Vulnerability in Huawei AR Router

  • SA No:Huawei-SA-20151111-01-AR
  • Initial Release Date: Nov 11, 2015
  • Last Release Date: Nov 19, 2015

The AR router has a directory traversal vulnerability when serving as an SFTP server. An attacker can log in to the AR router and traverse FTP server directories to access unauthorized directories, leading to information leaks. (Vulnerability ID: HWPSIRT-2015-09029)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-8228.

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-461676.htm

Product Name

Affected Version

Resolved Product and Version

AR1200

V200R006C10

 V200R006SPH003

AR2200

AR3200

AR3600

AR500

AR120

AR150

AR160

AR200

An attacker can exploit this vulnerability to access unauthorized directories, leading to information leaks.

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

Base Score: 4.0 (AV:N/AC:L/Au:S/C:P/I:N/A:N)

Temporal Score: 3.3 (E:F/RL:O/RC:C)

1. Prerequisite:

The attacker can access to the device and login;

2. Attacking procedure:

When serving as an SFTP server, the AR router does not strictly check the directories accessible to users. An attacker who can log in to the AR router can access unauthorized directories, leading to information leaks. However, the attacker cannot modify or delete directories.

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 is reported by Huawei internal tester. Huawei PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. 

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.


2015-11-19 V1.1 UPDATED add CVE ID
2015-11-11 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/.