Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

9/14/2009
04:58 PM
Connect Directly
Google+
Twitter
RSS
E-Mail
50%
50%

DNS Cloud Security Services Arrive

OpenDNS offers new subscription-based secure DNS service; other vendors' DNS services to follow

One of the first cloud-based secure DNS services was launched today amid intensified concerns about locking down vulnerable Domain Name Service servers.

OpenDNS, which provides a free DNS service for consumers and schools, is offering a subscription-based commercial service for enterprises. Other vendors, such as Nominum, are considering offering secure DNS cloud services, as well.

DNS security has received more attention than ever in the wake of the discovery of a major DNS hole that was revealed by researcher Dan Kaminsky, and was later patched by several vendors. The so-called cache-poisoning flaw could allow an attacker to guess the transaction ID of a Web query and let the attacker hijack queries. Meanwhile, the Internet community has stepped up efforts to adopt the DNSSEC standard for protecting the DNS translation process from being compromised.

"One of the more troubling experiences from the DNS patching effort was realizing how many organizations didn't even know what DNS servers they were using internally. Recursive name servers tend to just 'run themselves,' only getting noticed when they either have to be patched, or when load exceeds some magic query per second level, at which point random things start breaking everywhere," says Kaminsky, who is director of penetration testing for IOActive. "Running DNS out of the cloud isn't a bad way around this -- the data is effectively public anyway, patching is guaranteed, and you know there's capacity to burn."

OpenDNS founder and CTO David Ulevitch says his company's new enterprise DNS services are currently in trial, and will be generally available in the fourth quarter. "We expect others to copy us" with similar services, he says, adding that they will compete somewhat with Web filtering products, he says, is that the OpenDNS services don't require implementation and hardware costs. "We don't do all the things [Websense and BlueCoat] do, but some are using us now and not renewing" with them, he says. "We do about 80 percent of what they do, but we are still focused on a DNS security solution."

Jon Shalowitz, vice president and general manager of Nominum, which sells DNS products, says a secure cloud-based DNS service helps organizations keep up with the security of their DNS. "This provides the advantage of real-time knowledge. If you were managing it yourself internally, you would have to do the heavy-lifting and wait for a patch or new signature," Shalowitz says.

"Enterprises do need to know what's under the hood," he adds. "What is the actual DNS solution being used by the provider? You need to make sure the [cloud] solution you are signing up for is something tried and true in networks around the world."

OpenDNS's new offerings include OpenDNS Deluxe for consumers and SMBs, and OpenDNS Enterprise for large enterprises. Pricing for the Deluxe service will be less than $20 per user per year; pricing for the Enterprise service depends on the size and scope of the installation, but will "cost a fraction of what competing products charge," according to OpenDNS.

The services don't include DNSSEC, and Ulevitch argues that there's more to securing DNS than DNSSEC: "We've done more to secure the DNS than the DNSSEC guys have done in the last 15 years. But DNSSEC is getting more traction," he says. "We believe [DNSSEC] is tragically flawed. Even if it's widely deployed, it will never be successful."

DNSSEC, for example, can't block malware from "phoning home" like OpenDNS's services can, he says.

Have a comment on this story? Please click "Discuss" below. If you'd like to contact Dark Reading's editors directly, send us a message. Kelly Jackson Higgins is Executive Editor at DarkReading.com. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
10 Ways to Keep a Rogue RasPi From Wrecking Your Network
Curtis Franklin Jr., Senior Editor at Dark Reading,  7/10/2019
The Security of Cloud Applications
Hillel Solow, CTO and Co-founder, Protego,  7/11/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
Building and Managing an IT Security Operations Program
As cyber threats grow, many organizations are building security operations centers (SOCs) to improve their defenses. In this Tech Digest you will learn tips on how to get the most out of a SOC in your organization - and what to do if you can't afford to build one.
Flash Poll
The State of IT Operations and Cybersecurity Operations
The State of IT Operations and Cybersecurity Operations
Your enterprise's cyber risk may depend upon the relationship between the IT team and the security team. Heres some insight on what's working and what isn't in the data center.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-13611
PUBLISHED: 2019-07-16
An issue was discovered in python-engineio through 3.8.2. There is a Cross-Site WebSocket Hijacking (CSWSH) vulnerability that allows attackers to make WebSocket connections to a server by using a victim's credentials, because the Origin header is not restricted.
CVE-2019-0234
PUBLISHED: 2019-07-15
A Reflected Cross-site Scripting (XSS) vulnerability exists in Apache Roller. Roller's Math Comment Authenticator did not property sanitize user input and could be exploited to perform Reflected Cross Site Scripting (XSS). The mitigation for this vulnerability is to upgrade to the latest version of ...
CVE-2018-7838
PUBLISHED: 2019-07-15
A CWE-119 Buffer Errors vulnerability exists in Modicon M580 CPU - BMEP582040, all versions before V2.90, and Modicon Ethernet Module BMENOC0301, all versions before V2.16, which could cause denial of service on the FTP service of the controller or the Ethernet BMENOC module when it receives a FTP C...
CVE-2019-6822
PUBLISHED: 2019-07-15
A Use After Free: CWE-416 vulnerability exists in Zelio Soft 2, V5.2 and earlier, which could cause remote code execution when opening a specially crafted Zelio Soft 2 project file.
CVE-2019-6823
PUBLISHED: 2019-07-15
A CWE-94: Code Injection vulnerability exists in ProClima (all versions prior to version 8.0.0) which could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system in all versions of ProClima prior to version 8.0.0.