Executive Summary

Summary
Title Netgear G54/N150 Wireless Router WNR1000v3 uses insufficiently random values for DNS queries
Informations
Name VU#403568 First vendor Publication 2015-12-10
Vendor VU-CERT Last vendor Modification 2015-12-10
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Vulnerability Note VU#403568

Netgear G54/N150 Wireless Router WNR1000v3 uses insufficiently random values for DNS queries

Original Release date: 10 Dec 2015 | Last revised: 10 Dec 2015

Overview

Netgear G54/N150 Wireless Router WNR1000v3, firmware version 1.0.2.68 and possibly earlier, uses insufficiently random values for DNS queries and is vulnerable to DNS spoofing attacks.

Description

CWE-330: Use of Insufficiently Random Values - CVE-2015-8263

The Netgear G54/N150 Wireless Router WNR1000v3 uses 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 WNR1000v3 LAN clients to contact incorrect or malicious hosts under the attacker's control.

The following graph shows a distribution of 229 DNS queries captured on the WAN port of the WNR1000v3:

Impact

A remote, unauthenticated attacker may be able to spoof DNS responses to cause WNR1000v3 LAN clients to contact attacker-controlled hosts.

Solution

The CERT/CC is currently unaware of a practical solution to this problem.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Netgear, Inc.Affected08 Oct 201510 Dec 2015
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

GroupScoreVector
Base5.0AV:N/AC:L/Au:N/C:N/I:P/A:N
Temporal4.5E:POC/RL:U/RC:C
Environmental1.1CDP:ND/TD:L/CR:ND/IR:ND/AR:ND

References

  • http://support.netgear.com/product/WNR1000v3

Credit

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

This document was written by Joel Land.

Other Information

  • CVE IDs:CVE-2015-8263
  • Date Public:10 Dec 2015
  • Date First Published:10 Dec 2015
  • Date Last Updated:10 Dec 2015
  • Document Revision:6

Feedback

If you have feedback, comments, or additional information about this vulnerability, please send us email.

Original Source

Url : http://www.kb.cert.org/vuls/id/403568

CPE : Common Platform Enumeration

TypeDescriptionCount
Hardware 1
Os 1

Alert History

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0
1
2
Date Informations
2015-12-29 05:28:49
  • Multiple Updates
2015-12-27 09:27:41
  • Multiple Updates
2015-12-10 17:23:13
  • First insertion