The following provides and introduction to a study by Venugopalan Ramasubramanian and Emin Gun Sirer, called "Perils of Transitive Trust in the Domain Name System". The paper presents results from a large scale survey of DNS, illustrating how complex and subtle dependencies between names and nameservers lead to a highly insecure naming system... "It is well-known that nameservers in the Domain Name System are vulnerable to a wide range of attacks. We recently performed a large scale survey to answer some basic questions about the legacy DNS." more
I'm writing this column in November, and that means that it is time for the traveling circus known as the Internet Governance Forum (IGF) to come down to earth, unpack its tents and sell tickets for its annual song and dance routine. The script for this year's show has been changed, and after being excluded from the main arena last year at the Athens gig, the headline act of "Critical Internet Resources" is taking a starring role this year in Rio. Some folk are even saying that it is the single most contentious issue to be scheduled at this year's IGF show. So what are "Critical Internet Resources" anyway? If folks are going to spend all this time, energy and carbon emissions traveling to Rio to talk on this topic, then wouldn't it be helpful to understand what it means in the first place? There are probably a number of ways to answer this question, so in this heavily opinionated column I'd like to look at the range of possible answers to this question. more
The following is an overview of the recent Honeynet Project and Research Alliance study called 'Know your Enemy:Phishing' aimed at discovering practical information on the practice of phishing. This study focuses on real world incidents based on data captured and analyzed from the UK and German Honeynet Project revealing how attackers build and use their infrastructure for Phishing based attacks. "This data has helped us to understand how phishers typically behave and some of the methods they employ to lure and trick their victims. We have learned that phishing attacks can occur very rapidly, with only limited elapsed time between the initial system intrusion and a phishing web site going online..." more
The Russian Security Council has proposed development of an independent DNS which would continue to work in the event of global internet malfunctions, according to a report from RT. more
The Equifax hack is understood to have compromised the personal data of over 140 million individuals. Although recent hacks of other businesses have affected more individuals, the personal data held by Equifax is significantly more sensitive than the data compromised in other hacks and includes Social Security numbers, birth dates, current and previous addresses and driver licence details... (Co-authored by Peter Davis and Brendan Nixon.) more
A large scale ransomware attack today is spreading rapidly worldwide, shutting down computers at corporates, power supplies, and banks across Russia, Ukraine, Spain, France, UK, India, and Europe and demanding $300 in bitcoins. more
According to Akamai, the incident was the largest attack seen to date, "more than twice the size of the September 2016 attacks that announced the Mirai botnet and possibly the largest DDoS attack publicly disclosed." more
According to a press release by the Openbaar Ministerie (the Public Prosecution Office), a dutch man with the initials SK has been arrested in Spain for the DDoS attacks on Spamhaus. more
The Comcast traffic shaping case has stirred up passionate debate. Net neutrality proponents are calling for Comcast's head on a platter. The common argument is that Comcast's policy may stifle innovation and competition. If a service provider is allowed to exercise unregulated discretion in how it treats subscriber traffic, it is a slippery slope toward anti-competitive practices. Net neutrality says keep your hands off. Some are preaching net neutrality as if it were an inalienable human right like freedom of speech... more
Yesterday, egregious financial truth-tellers (a client of ours at easyDNS) ZeroHedge broke the news that parties unknown, engineered what looks to be a textbook "pump-and-dump" on Twitter's stock by putting up a fake "Bloomberg Financial News" site on the domain bloomberg.market and proceeded to run a story on it about Twitter being acquired. The story spread and shares of Twitter stock promptly spiked on volume, Twitter finishing the day on nearly double the average daily volume. more
Over the past several months, CITP-affiliated Ph.D. student Sarthak Grover and fellow Roya Ensafi been investigating various security and privacy vulnerabilities of Internet of Things (IoT) devices in the home network, to get a better sense of the current state of smart devices that many consumers have begun to install in their homes. To explore this question, we purchased a collection of popular IoT devices, connected them to a laboratory network at CITP, and monitored the traffic that these devices exchanged with the public Internet. more
After the botched burglary at the Watergate Apartments, every scam and scandal that hit the headlines became a 'gate' -- Irangate, Contragate, you name it. The Heartbleed bug is possibly the closest thing to Watergate that this generation of computer security had seen till the past few days -- an exploit in a component that is "just there" -- something you utterly rely on to be there and perform its duties, and give very little thought to how secure (or rather, insecure) it might be. So, fittingly, every such catastrophic bug in an ubiquitous component is now a 'bleed'. more
Passwords are no longer sufficient to maintain an adequate level of security for business critical infrastructure and services. Two-factor authentication should be considered the minimum acceptable level of access control. There have been two types of security stories in the technology news over the last few months that should be of particular concern to system administrators and those responsible for maintaining business network infrastructure. more
Leading Moscow-based anti-virus software provider Kaspersky Lab is planning to open a data center in Switzerland to address Western government concerns that Russia exploits its anti-virus software to spy on customers, according to a report from Reuters on Wednesday. more
New research has uncovered evidence of spammers establishing their own fake URL-shortening services for the first time. According to the latest MessageLabs Intelligence report, shortened links created on these fake URL-shortening sites are not included directly in spam messages; instead, the spam emails contain shortened URLs created on legitimate URL-shortening sites. "Rather than leading directly to the spammer's final Web site, these links actually point to a shortened URL on the spammer's fake URL-shortening Web site, which in turn redirects to the spammer's final Web site." more