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Security Advisory - DHCP Snooping Vulnerability in Huawei Multiple Products

  • SA No:Huawei-SA-20151021-01-USG
  • Initial Release Date: Oct 21, 2015
  • Last Release Date: Nov 11, 2015

Multiple Huawei products have "DHCP Snooping" function. When the "option82 insert" or "option82 rebuild" is enabled on interface, the device is not able to parse some specific DHCP packet correctly, making the device restart. (Vulnerability ID:HWPSIRT-2015-08052)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-8084.

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-457916.htm

Product Name

Affected Version

Resolved Product and Version

USG5500

earlier versions than V300R001C10SPC600

V300R001C10SPC600

USG2100

earlier versions than V300R001C10SPC600

V300R001C10SPC600

USG2200

earlier versions than V300R001C10SPC600

V300R001C10SPC600

USG5100

V300R001C10

V300R001C10SPC600

Attackers may make the device restart by exploiting this vulnerability.

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

Base Score: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)

Temporal Score: 6.4 (E:F/RL:O/RC:C)

Prerequisite:

1 Attackers can send malformed DHCP packet to the device.

2 The "DHCP Snooping" is enabled and the "option82 insert" or "option82 rebuild" is enabled on interface

Attacking procedure:

Attackers send malformed DHCP packet to the device. The device is not able to parse some specific DHCP packet correctly, making the device restart.

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 was found by Huawei internal tester. Huawei PSIRT is not aware of 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.


2015-11-11 V1.1 UPDATED Added CVE ID information in the 'Summary' section.

2015-10-21 V1.0 INITIAL

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.


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/.