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Security Advisory - Use of Insufficiently Random Values Vulnerability in Huawei ViewPoint Products

  • SA No:huawei-sa-20191120-01-viewpoint
  • Initial Release Date: Nov 20, 2019
  • Last Release Date: Nov 20, 2019

There is a use of insufficiently random values vulnerability in Huawei ViewPoint products. An unauthenticated, remote attacker can guess information by a large number of attempts. Successful exploitation may cause information leak. (Vulnerability ID: HWPSIRT-2019-10076)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-5232.

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-20191120-01-viewpoint-en


Product Name

Affected Version

Resolved Product and Version

VP9630

V500R002C00

Upgrade to V500R002C10SPCi10

V500R002C10

V500R002C10SPCi10

VP9650

V500R002C00

Upgrade to V500R002C10SPCi10

V500R002C10

V500R002C10SPCi10

VP9660

V500R002C00

Upgrade to V500R002C10SPCi10

V500R002C10

V500R002C10SPCi10


By exploiting this vulnerability, an attacker can cause information leak.

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

Base Score: 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Temporal Score: 5.5 (E:F/RL:O/RC:C)

Overall Score: 5.5

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

The attacker gains access to the network.

Vulnerability details:

There is a use of insufficiently random values vulnerability in Huawei ViewPoint products. An unauthenticated, remote attacker can guess information by a large number of attempts. Successful exploitation may cause information leak.

Solution 1: Disable the SSH login function. The following uses the VP9660 as an example to describe how to disable SSH login.

Web interface: Choose Settings > System > HTTP/Telnet > Support SSH

Solution 2: Modify the firewall policy or Datacom device policy to allow only valid IP addresses to access TCP port 22 of any IP address of the MCU. This solution is recommended.

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/index.htm

This vulnerability was reported to Huawei PSIRT by security researcher.

2019-11-20 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.