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-VRP SSH Denial of Service Vulnerability

  • SA No:Huawei-SA-20141010-01-VRP
  • Initial Release Date: Oct 10, 2014
  • Last Release Date: May 18, 2014

The SSH of the VRP has an input verification issue. Remote attackers can send a special SSH packet to the device to cause a denial of service (Vulnerability ID: HWPSIRT-2014-0701).

This Vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2014-8572.

Product name

Affected Version

Resolved Product and Version

AC6605

AC6605 V200R001C00

AC6605 V200R005C00SPC600

AC6605 V200R002C00

ACU

ACU V200R001C00

ACU V200R002C00SPH601

ACU V200R002C00

S2300/ S3300/
S2700/ S3700

V100R006C05 and earlier versions

V100R006C05+V100R006CP0001

S5300/ S5700/
 S6300/ S6700

V100R006

V200R005C00SPC300+V200R005CP0001

V200R001

V200R002

V200R003

V200R005C00SPC300 and earlier versions

S7700/ S9300/
S9300E/ S9700

V100R006

V200R003C00SPC500+V200R003SPH008 or V200R005C00SPC300+V200R005SPH001

V200R001

V200R002

V200R003
 V200R003C00SPC500+V200R003SPH008
V200R005C00SPC300 and earlier versions
 V200R005C00SPC300+V200R005SPH001

Attackers can exploit this vulnerability to cause a denial of service.

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)


1. Prerequisite:

1) Attackers can access the device;

2) SSH is enabled on the device;

2. Vulnerability details:

Attackers send a special SSH packet to device after the connection is established. Device does not verify the validity of a field in the packet cause a denial of service.
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 engineer. 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.


2016-05-18 V1.3 UPDATED Updated resolved product and version

2014-11-04 V1.2 UPDATED Updated the assigned CVE ID

2014-10-30 V1.1 UPDATED Updated resolved product and version

2014-10-10 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/.