This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy (update in May 2018) >

Security Advisory - Improper Resource Management Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20180418-01-ar
  • Initial Release Date: 2018-04-18
  • Last Release Date: 2018-04-18

There is an improper resource management vulnerability in some AR series products. Due to the improper implementation of ACL mechanism, a remote attacker may send TCP messages to the management interface of the affected device to exploit this vulnerability. Successful exploit could exhaust the socket resource of management interface, leading to a DoS condition. (Vulnerability ID: HWPSIRT-2018-03021) 
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-7920. 
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-20180418-01-ar-en

Product Name

Affected Version

Resolved Product and Version

AR1200

V200R006C10SPC300

Upgrade to V200R009C00SPC500

AR160

V200R006C10SPC300

Upgrade to V200R009C00SPC500

AR200

V200R006C10SPC300

Upgrade to V200R009C00SPC500

AR2200

V200R006C10SPC300

Upgrade to V200R009C00SPC500

AR3200

V200R006C10SPC300

Upgrade to V200R009C00SPC500


Successful exploit could exhaust the socket resource of management interface, leading to a 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 affected device network. 

Vulnerability details:  

Due to the improper implementation of ACL mechanism, a remote attacker may send TCP messages to the management interface of the affected device to exploit this vulnerability. Successful exploit could exhaust the socket resource of management interface, leading to a 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.

This vulnerability was discovered by Huawei internal tester.
2018-04-18 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.