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Security Advisory - Improper Authorization Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20170927-01-dos
  • Initial Release Date: 2017-09-27
  • Last Release Date: 2017-09-27

Some Huawei products have an improper authorization vulnerability due to improper permission settings for a certain file on the host machine. An authenticated attacker could create a large number of virtual machine (VM) processes to exhaust system resources. Successful exploit could make new VMs unavailable. (Vulnerability ID: HWPSIRT-2017-04141)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2017-8158. 
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-20170927-01-dos-en

Product Name

Affected Version

Resolved Product and Version

FusionCompute

V100R005C00

Upgrade to V100R005C10U1

V100R005C10

V100R005C10U1


Successful exploit of this vulnerability could make new VMs unavailable.

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

Base Score: 6.5 (AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)

Temporal Score: 6.0 (E:F/RL:O/RC:C)

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

The attacker can log in to the host machine.

Vulnerability details:

Due to improper permission settings for a certain file on the host machine, an authenticated attacker could create a large number of VM processes to exhaust system resources. Successful exploit could make new VMs unavailable.

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.

2012-10-25 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.