0308, 2017

Decline of the Scientific Method: New (Austrian) “Trojan” Law without Technical Expertise

Sanna/ August 3, 2017/ Discussion, High Entropy, Security

The Crypto Wars are still raging despite everyone relying on secure communication. Everyone means everyone. The good thing is that mathematics still works, even though some people wouldn’t want it to. The latest cryptographic review comes from Amber Rudd, the current UK Home Secretary. She said recently: “Real people often prefer ease of use and a multitude of features to perfect, unbreakable security.” The corollary in turn states that DeepSec conferences aren’t attended by real people. Since we are not yet a purely robot-based event, there is something wrong with this approach to secure communication. The common denominator is simply the lack of technical expertise. There is no surprise there. Ever since the Internet was discovered by the rest of the world (which was in the 1990s, don’t get fooled by web sites who

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2707, 2017

Unicorns in the Wild – Information Security Skills and how to achieve them

René Pfeiffer/ July 27, 2017/ Discussion, High Entropy, Security

Everyone talks about information security, countering „cyber“ threats, endless feats of hackers gone wrong/wild, and more epic stories. Once you have realised that you are reading the news and not a script for a TV series, you are left with one question: What are information security skills? The next question will probably be: How do you train to be „information secure“? Let’s take a look at possible answers. First of all, yes, you can study information security or security-related topics. Universities, schools, and companies offer lectures, training, exercises, etc. Great. However it may not help you right away. We talked with top quality head hunters from a nameless big corporation. When they look for infosec specialists, they filter for anyone having worked in three different fields related to computer science (applied or otherwise) for

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2006, 2017

BSidesLondon 2017 – Sharing is indeed Caring

René Pfeiffer/ June 20, 2017/ Discussion, High Entropy

When airport security meets information security it’s usually BSidesLondon time. It was a great experience. And since DeepSec sponsors the Rookie Track we had a very tough decision to make. It’s really hard to pick a winner. A lot of presentations were excellent, and the presenters made the most out of the 15 minutes. The winner is Thaís for her introduction to malware analysis by using satisfiability modulo theories (SMT). If you get the chance of seeing her presenting somewhere, take a seat and listen to her. We also like to recommend Colette‘s presentation titled ‘How the f**k do I get in? One woman’s struggle to break into cyber security!’. Despite the title it was not a rant, it was a clear and concise summary of the state of affairs for women in technology.

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2305, 2017

Biometrics and Failures in understanding Security – Copy & Paste Iris Scans

René Pfeiffer/ May 23, 2017/ High Entropy, Security

Biometrics has an irresistible attraction. Simply by mentioning the fact that you can measure parts (or surfaces) of the body and convert them to numbers a lot of people are impressed out of their mind. Literally. In theory biometric information serves as a second set of data to be used for any purposes. A common purpose is to use it for authentication. Most physical sources of biometric data are easily accessible. Fingers (for fingerprints), eyes (for your iris), limbs (for your veins), voice (for the Cloud), and other examples show this well. Where does the security come into play? Well, it doesn’t. For starters, passwords can be changed. Biometrics can’t unless you have a transplant. In contrast to passwords biometrics can be faked. The biometric source can be copied. In most cases this is

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1605, 2017

Disinformation Warfare – Attribution makes you Wannacry

René Pfeiffer/ May 16, 2017/ Discussion, High Entropy, Security Intelligence

After the Wannacry malware wreaked havoc in networks, ticket vending machines, companies, and hospitals the clean-up has begun. This also means that the blame game has started. The first round of blame was distributed between Microsoft and the alleged inspiration for the code. The stance on vulnerabilities of security researchers is quite clear. Weaknesses in software, hardware, protocols, or design needs to be documented and published. This is the only way to address the problem and to give the defenders a chance to react. The discussion about how to deal with the process is ongoing and will most likely never come to a conclusion. What about the source of the attack? Attribution is hard. Knowing who attacked has become increasingly difficult in the analogue world. Take any of the conflicts around the world and

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1405, 2017

Wannacry, Code Red, and „Cyber“ Warfare

René Pfeiffer/ May 14, 2017/ High Entropy, Security

Society and businesses increasingly rely on networked infrastructure. This is not news. Worms that used networks to spread to new hosts in order to infect them is also not news. Code Red did this back in 2001. There is a new worm going around. Its name is Wannacry, and it is allegedly based on published attack code developed by the NSA. The malicious software is delivered by email. After successful installation it infects the host and propagates to other systems by using probes to port 139/TCP, 445/TCP and 3389/TCP. It belongs to the class of ransomware, encrypting files and demanding ransom. Thousands of infected systems are still active. The attack is still ongoing. If you are in doubt if you have compromised systems within your network, we recommend taking a look at how to

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2504, 2017

Applied Crypto Hardening Project is looking for Help

René Pfeiffer/ April 25, 2017/ High Entropy, Internet

Hopefully many of you know the Applied Crypto Hardening (ACH) project, also known as BetterCrypto.org. The project was announced at DeepSec 2013. The idea was (and is) to compile hands-on advice for system administrators, dev ops, developers, and others when it comes to selecting the right crypto configuration for an application. The BetterCrypto.org document covers far more protocols than HTTPS. OpenSSH, OpenVPN, IPsec, and more topics are described in the PDF guide. The project is run by volunteers. This is where you come in. The ACH project needs more volunteers to keep going. New GNU/Linux distributions are around the corner (the apt store never sleeps). Some vendors really do upgrade their code base. Libraries change and bleed less. Algorithms get tested, improved, and re-evaluated. The field of cryptography is moving forward, as it should.

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0104, 2017

SS8 – Replacement for Insecure Signalling System No. 7 (SS7) Protocol revealed

René Pfeiffer/ April 1, 2017/ High Entropy

The ageing SS7 protocol has reached it’s end of life. Security experts around the world have criticised vulnerabilities a long time ago. SS7 even facilitated unsolicited surveillance attacks. What’s more, it has its own talks at the annual Chaos Communication Congress – which is a clear sign of fail if there is more than one presentation dealing with inherent design failures. It’s time to put SS7 to rest. Since the 1970s the requirements for signalling have clearly changed. It’s not only about telephones any more. SS8, its successor, features a brand new design and fixes the many shortcomings of SS7. New technologies such as blockchain, artificial intelligence, crowd routing, social signalling, full “tapping”, and deep state connections are now part of the core functions. Furthermore, SS8 is completely in harmony with Big Data, because it offers a

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2601, 2017

The Sound of „Cyber“ of Zero Days in the Wild – don’t forget the Facts

René Pfeiffer/ January 26, 2017/ Discussion, High Entropy

The information security world is full of buzzwords. This fact is partly due to the relationship with information technology. No trend goes without the right amount of acronyms and leetspeaktechnobabble. For many decades this was not a problem. A while ago the Internet entered mainstream. Everyone is online. The digital world is highly connected. Terms such as cyber, exploit, (D)DoS, or encryption are used freely in news items. Unfortunately they get mixed up with words from earlier decades leading to cyber war(fare), crypto ransom(ware), dual use, or digital assets. Some phrases are here to stay. So let’s talk about the infamous cyber again. In case you have not seen Zero Days by Alex Gibney, then go and watch it. It is a comprehensive documentary about the Stuxnet malware and elements of modern warfare (i.e.

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3011, 2016

Scanning for TR-069 is neither Cyber nor War

René Pfeiffer/ November 30, 2016/ Discussion, High Entropy, Internet

The Deutsche Telekom was in the news. The reason was a major malfunction of routers at the end of the last mile. Or something like that. As always theories and wild assumptions are the first wave. Apparently a modified Mirai botnet tried to gain access to routers in order to install malicious software. The attacks lasted from Sunday to Monday and affected over 900,000 customers. These routers often are the first point of contact when it comes to a leased line. Firewalls and other security equipment usually comes after the first contact with the router. There are even management ports available, provided the ISP has no filters in place. The TR-069 (Technical Report 069) specification is one management interface, and it has its security risks. Now that the dust has settled the Deutsche Telekom

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1711, 2016

Disclosures, Jenkins, Conferences, and the Joys of 0Days

René Pfeiffer/ November 17, 2016/ Conference, Discussion, High Entropy

DeepSec 2016 was great. We have slightly recovered and deal with the aftermath in terms of administrivia. As announced on Twitter, we would like to publish a few thoughts on the remote code execution issue found by Matthias Kaiser. He mentioned the possibility in this presentation titled Java Deserialization Vulnerabilities – The Forgotten Bug Class. First let’s explain some things about how DeepSec runs the Call for Papers, the submissions, and the conference. During the Call for Papers process our speakers send us title, abstract, and mostly an in-depth description of the presentation’s content. This means that we usually know what’s going to happen, except for the things that are actually said and shown during the presentation slot. Since we do not offer any live video streams and publish all presentation slides after we

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0911, 2016

Screening of “A Good American” in Vienna with Bill Binney

René Pfeiffer/ November 9, 2016/ Discussion, High Entropy, Security Intelligence

There will be a screening of the documentary A Good American in Vienna tomorrow. We highly recommend watching this film, even if you are not directly connected to information security. Threat intelligence has far-reaching consequences, and in the case of the world’s biggest intelligence agency it also affects you. A Good American will be shown at 1000, Village Cinema Wien Mitte, and at 1600, Audimax of the Technische Universität Wien (you need to send an email with a RSVP to attend). All of this takes place in the course of a lecture about the topic. Markus Huber and Martin Schmiedecker have kindly organised everything. Bill Binney will be present, too. So you can directly talk to him and ask him questions. We highly recommend not to miss this opportunity.

0509, 2016

Of Clouds & Cyber: A little Story about Wording in InfoSec

René Pfeiffer/ September 5, 2016/ Discussion, High Entropy

In case you ever received a message about our calls for papers, you may have noticed that we do not like the word cyber. Of course we know that it is used widely. Information security experts are divided if it should be used. Some do it, some reject it, some don’t know what to do about it. We use it mostly in italics or like this: „cyber“. There is a reason why, but first let’s take a look where the word comes from. The Oxford Dictionaries blog mentions the origin in the word cybernetics. This word was used in the 1940 by scientists from the fields of engineering, social sciences, and biology. Cybernetics deals with the study of communication and control systems in living beings and machines. Hence the word is derived from the

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3108, 2016

Information Warfare: “Breaking News” considered harmful

René Pfeiffer/ August 31, 2016/ Discussion, High Entropy

Eight years ago the stocks of UAL took a dive. Apparently a six year old news article resurfaced via Google. Googlebot, which is used to index news sites, confused one of the most popular web articles of The Sun-Sentinel with breaking news. The story contained the words United Airlines Files for Bankruptcy. Unfortunately a software error turned the date of the original story from 10 December 2002 to 6 September 2008. And so this little piece of misinformation due to the time travel caused a lot of havoc with UAL’s stock price. A little misunderstanding. Fortunately it was not a cyber attack, because the word was used rarely back then. Breaking news can break things, hence the name. It happens with data leaks, password leaks/breaches (depending on which side you are), incomplete reports, social

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2108, 2016

Transforming Secure Coding into Secure Design

René Pfeiffer/ August 21, 2016/ Discussion, High Entropy, Security

Secure Coding is the way to go when you develop applications for the real world. Rename errors and bugs into failures. Turn #fail to #win. Instant karma. In addition there are lots of best practices, checklists, and documents around that will tell you what to anticipate. However the design of an application precedes the code itself. Given the scope and purpose of your product implementing security at the coding stage might be too late. Let us consider an example. The Internet of Things (IoT) is all around us, especially in the information security news sections. While connecting devices to make one’s life easier isn’t a bad idea (just think about writing this article on a networked device and you reading it! Cool, eh?), the connecting parts and the security design should be sound. Smart

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