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Security Advisory - Vulnerability of Improper Interface Access Control in a Huawei PC Product

  • SA No:huawei-sa-20171129-01-httpproxy
  • Initial Release Date:2017-11-29
  • Last Release Date:2017-11-29

Some open source software used by Huawei does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request. (Vulnerability ID: HWPSIRT-2016-07052)
This vulnerability has been assigned a CVE ID: CVE-2016-5386.
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-20171129-01-httpproxy-en

Product Name

Affected Version

Resolved Product and Version

AR3200

V200R005C30

Upgrade to V200R008C50

V200R005C32

V200R006C10

V200R006C11

V200R006C12

V200R006C13

V200R006C15

V200R006C16

V200R006C17

V200R007C00
Remote attackers can redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request by exploit this vulnerability.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 9.0 (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
Temporal Score: 8.3 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
Attackers can access the vulnerable device by network.
Vulnerability details:
Some open source software used by Huawei does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request.
None


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 reported to Huawei by CERT Coordination Center firstly.
2017-11-29 V1.0 INITIAL

None

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.