Huawei Mobile WiFi E5151 and E5186 routers use insufficiently random values for DNS queries

Overview

Huawei Mobile WiFi E5151, firmware version 21.141.13.00.1080, and E5186, firmware version V200R001B306D01C00, use insufficiently random values for DNS queries and are vulnerable to DNS spoofing attacks.

Description

CWE-330: Use of Insufficiently Random Values- CVE-2015-8265

Huawei Mobile WiFi E5151 and E5186 routers use static source ports for all DNS queries originating from the local area network (LAN). An attacker with the ability to spoof DNS responses can cause E5151 or E5186 LAN clients to contact incorrect or malicious hosts under the attacker’s control.

The following graph shows a distribution of 114 DNS queries captured on the WAN port of the E5151:

---

Impact

A remote, unauthenticated attacker may be able to spoof DNS responses to cause E5151 or E5186 LAN clients to contact attacker-controlled hosts.

---

Solution

Apply an update

An update is available for the E5151 and can be obtained by contacting SmarTone at [email protected].

Huawei has released firmware version V200R001B310D01SP00C00 to address this vulnerability in the E5186. According to the vendor’s security advisory, users should contact Huawei TAC to request an upgrade.

---

Vendor Information

972224

Filter by status: All Affected Not Affected Unknown

Filter by content: __ Additional information available

__ Sort by: Status Alphabetical

Expand all

Javascript is disabled. Click here to view vendors.

Huawei Technologies Affected

Notified: October 08, 2015 Updated: December 10, 2015

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group	Score	Vector
Base	5	AV:N/AC:L/Au:N/C:N/I:P/A:N
Temporal	3.9	E:POC/RL:OF/RC:C
Environmental	1.0	CDP:ND/TD:L/CR:ND/IR:ND/AR:ND

References

• <http://consumer.huawei.com/lk/mobile-broadband/mobile-wifi/tech-specs/e5151-lk.htm&gt;
• <http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160129-01-dns-en&gt;

Acknowledgements

These vulnerabilities were reported by Joel Land of the CERT/CC.

This document was written by Joel Land.

Other Information

CVE IDs:	CVE-2015-8265
Date Public:	2016-02-01 Date First Published: