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Security Advisory - DoS Vulnerability in Some Huawei Switch Products

  • SA No:huawei-sa-20180103-01-switch
  • Initial Release Date: 2018-01-03
  • Last Release Date: 2018-01-03

There is a denial of service (DoS) vulnerability in Some Huawei switch products. An unauthenticated, remote attacker crafts oversized packets and sends the packets to the affected products. Due to insufficient verification of the packets, successful exploitation may cause the service unavailability and denial of service (DoS) condition. (Vulnerability ID: HWPSIRT-2017-10069)

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

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180103-01-switch-en

Product Name

Affected Version

Resolved Product and Version

S7700

V100R006C00

Upgrade to V2R10C00

V200R001C00

V200R002C00

S9700

V200R001C00

Upgrade to V2R10C00


By exploiting this vulnerability, the attacker can cause the service unavailability and denial of service (DoS) condition.

The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Temporal Score: 7.0 (E:F/RL:O/RC:C)

This vulnerability can be exploited only when the following conditions are present:

The attacker gains access to the network.

Vulnerability details:

There is a denial of service (DoS) vulnerability in Some Huawei switch products. An unauthenticated, remote attacker crafts oversized packets and sends the packets to the affected products. Due to insufficient verification of the packets, successful exploitation may cause the service unavailability and denial of service (DoS) condition.

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.

These vulnerabilities were discovered by Huawei internal tester.

2018-01-03 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.