DNS Security

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Why You Must Learn to Love DNSSEC

It's been nearly two months since the high profile BGP hijack attack against MyEtherwallet, where crypto thieves used BGP leaks to hijack MEW's name servers, which were on Amazon's Route53, and inserted their own fake name servers which directed victims to their own fake wallet site, thereby draining some people's wallets. It generated a lot of discussion at the time... What isn't fully appreciated is that attack has, in fact, changed the game somewhat... more

Analyzing Data for Business and Security Signals

Domain name registries and registrars play a critical role in the functioning of the internet, serving as gatekeepers to the DNS. As such, they have an important responsibility to ensure the security and stability of the DNS but also to promote the use of a domain name in a meaningful way for the end user. To be more efficient in achieving these goals, the domain name industry has started to become more open to the idea of leveraging their own internal data to gain insights about their current business. more

How DANE Strengthens Security for TLS, S/SMIME and Other Applications

The Domain Name System (DNS) offers ways to significantly strengthen the security of Internet applications via a new protocol called the DNS-based Authentication of Named Entities (DANE). One problem it helps to solve is how to easily find keys for end users and systems in a secure and scalable manner. It can also help to address well-known vulnerabilities in the public Certification Authority (CA) model. Applications today need to trust a large number of global CAs. more

Leading Domain Registries and Registrars Release Joint Document on Addressing ‘DNS Abuse’

A group of leading domain name registries and registrars have joined forces in the fight against abuse in the Domain Name System (DNS), by developing a "Framework to Address Abuse." Each contributing company has shared its expertise and experience mitigating abusive practices with the goal of submitting the resulting Framework as a foundational document for further discussion in the multistakeholder community.  more

PIR Launches New Institute to Combat DNS Abuse

Public Interest Registry (PIR), the non-profit operator of the .org top-level domain, today launched the DNS Abuse Institute, a centralized effort to combat DNS Abuse. In its news release, PIR said the Institute "will bring together leaders in the anti-abuse space to fund research, publish recommended practices, share data, and provide tools to identify and report DNS Abuse." more

HTTPS Web Hijacking Goes From Theory to Practice

I've been privately talking about the theoretical dangers of HTTPS hacking with the developers of a major web browser since 2006 and earlier last month, I published my warnings about HTTPS web hacking along with a proposed solution. A week later, Google partially implemented some of my recommendations in an early Alpha version of their Chrome 2.0 browser... This week at the Black Hat security conference in Washington DC, Moxie Marlinspike released a tool called SSL Strip... more

Domain Name System (DNS) Security Should Be One of Your Priorities

Most people, even seasoned IT professionals, don't give DNS (the Domain Name System) the attention it deserves. As TCP/IP has become the dominant networking protocol, so has the use of DNS... Due to the reliability built into the fundamental RFC-based design of DNS, most IT professionals don't spend much time worrying about it. This can be a huge mistake! more

DNSSEC: Will Microsoft Have Enough Time?

I have previously pointed out the shortcomings of good and user friendly support for DNSSEC in Microsoft's Server 2008 R2. During the period just after I wrote the post, I had a dialogue with Microsoft, but during the last months there has been no word at all. The reason I bring this up again is that more and more Top Level Domains (TLDs) now enable DNSSEC and also the fact that within six months the root will be signed. more

Commercial DNSSEC?

Seems that DNSSEC is being subjected to what an old boss of mine used to call the "fatal flaw seeking missiles" which try to explain the technical reasons that DNSSEC is not being implemented. First it was zone walking, then the complexity of Proof of Non-Existence (PNE), next week ... one shudders to think. While there is still some modest technical work outstanding on DNSSEC, NSEC3 and the mechanics of key rollover being examples, that work, of itself, does not explain the stunning lack of implementation or aggressive planning being undertaken within the DNS community. more

InternetNZ Has Disclosed a Vulnerability That Can Be Weaponized Against Authoritative DNS Servers

New Zealand's .nz operator, InternetNZ, on Wednesday disclosed a vulnerability against authoritative DNS servers. The vulnerability called TsuNAME was first detected in February 2020 in the .nz registry and found that it could be exploited to carry out Denial-of-Service (DoS) attacks across the world. more

Mitigating DNS Abuse and Safeguarding the Internet

The internet is a beacon of global connectivity and information, but it has also become a battleground where malicious actors exploit vulnerabilities for various immoral purposes. Domain Name System (DNS) abuse stands has proven a constant in the internet threat landscape, posing risk to the overall digital trust. more

“It’s Always DNS!” Why DNS Is the Biggest Single Point of Failure in the New Norm

Many in the network security field may be familiar with the phrase: "It's always DNS."  This is a popular meme within the industry, often making reference to the internal domain name system (DNS), the dynamic host configuration protocol (DHCP) part of a company's online network, that whenever there is a network issue, it's always an issue with DNS. more

Why Not an Interim Step Until DNSSEC is Ready?

I'm interested in CircleID community's take on NeuStar's recent announcement of Cache Defender. While only effective for domains the company is authoritative for, that does cover a large number of big Internet brands and financial institutions. Why wouldn't an ISP deploy this now, while waiting for all the myriad issues involved in DNSSEC to be resolved? more

Some Thoughts on DNS4EU – the European Commission’s Intention to Support the Development of a New European DNS Resolver

The last few decades have not been a story of unqualified success for European technology enterprises. The European industrial giants of the old telephone world, such as the former stalwarts Alcatel, Siemens, Philips, Ericsson and Nokia, have found it extraordinarily difficult to translate their former dominant positions in the telco world into the Internet world. To be brutally frank, none of the current generations of major players in the digital environment are European. more

DNSSEC Deployment at the Root

The DNSSEC is a security protocol for providing cryptographic assurance (i.e. using the public key cryptography digital signature technology) to the data retrieved from the DNS distributed database (RFC4033). DNSSEC deployment at the root is said to be subject to politics, but there is seldom detailed discussion about this "DNS root signing" politics. Actually, DNSSEC deployment requires more than signing the DNS root zone data; it also involves secure delegations from the root to the TLDs, and DNSSEC deployment by TLD administrations (I omit other participants involvement as my focus is policy around the DNS root). There is a dose of naivety in the idea of detailing the political aspects of the DNS root, but I volunteer! My perspective is an interested observer. more