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Security Advisory - DoS Vulnerability in Huawei Firewall

  • SA No:huawei-sa-20161214-01-firewall
  • Initial Release Date: Dec 14, 2016
  • Last Release Date: Dec 14, 2016

There is a denial of service (DoS) vulnerability in Huawei firewalls due to no memory release after the execution of a specific command. A remote attacker with specific permission can log in to a device and deliver a large number of such commands to exhaust memory, causing a DoS condition. (Vulnerability ID: HWPSIRT-2016-06075)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-8781.

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-20161214-01-firewall-en

Product Name

Affected Version

Resolved Product and Version

Secospace USG6300

V500R001C20

Upgrade to V500R001C30SPC100

V500R001C20SPC200PWE

V500R001C20SPC300PWE

Secospace USG6500

V500R001C20

Upgrade to V500R001C30SPC100

Secospace USG6600

V500R001C20

Upgrade to V500R001C30SPC100

V500R001C20SPC200PWE

V500R001C20SPC300PWE

Successful exploit could exhaust system memory, causing a DoS condition.

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

Base Score: 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Temporal Score: 4.0 (E:F/RL:O/RC:C)

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

1. The attacker logs in to the device.

Vulnerability details:

This vulnerability is caused by no memory release after the execution of a specific command. A remote attacker with specific permission can log in to a device and deliver a large number of such commands to exhaust memory, causing 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.
2016-12-14 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.