Category Archives: Information Security

StartSSL is blocked by Chrome & Firefox and they didn’t notified their customers

| 2017-04-09 | English, Information Security

The SSL certificates issued by Israel based Certificate Authority StartSSL (https://www.startssl.com/) are blocked by Google Chrome and Mozilla Firefox since March 2017. Behind what could be just a technical issue, there is some disturbing facts:

First, the reason why Google and Mozilla have decided to progressively block StartSSL (and more importantly WoSign) is the issuance by WoSign, a chinese Certificate Autority,  of multiple SSL certificate for Domains for which they didn’t received any mandate and didn’t validate the ownership of the domain by the requester. The first case to be reported to Google was GitHub, the famous Source Code repository. As WoSign had “secretely” bought StartSSL and integrated its infrastructure in its own, StartSSL has been “sentenced” to the similar distrust by most browser than its owning company.

As DNS CAA records are not used by browsers to check if the Certificate Authority of an SSL certificate for a domain is the correct one, it could have allowed someone to impersonate GitHub or at least to lure some users to a fake GitHub site (anyway, GitHub didn’t set his CAA record). Such behavior is unacceptable for any certificate issuer as trust is the cornerstone of the entire SSL certificate paradigm. Google and Mozilla’s reaction seems then proportionate. However, you can imagine the impact of such sentence. For any CA, being withdraw from the list of trusted certificates of the two main browsers is like a death penalty for the CA.

The second disturbing fact is that StartSSL failed (or decided not) to properly inform its customers. Worse, it continues to sell its Class 1 certificate despite the fact they are basically useless. That’s not the kind of commercial decision that will help restore the trust to the Israeli company, even if WoSign has defined a remediation plan aiming at giving more autonomy to StartSSL (see below).

Customers who had paid for the Enterprise Validation have lost their money and are now using blocking certificates. The only cheap and rapid solution to restore access to their website (and keeping the SSL/TLS active) is likely to use LetsEncrypt free certificates.

I don’t know what the future is but I wouldn’t recommend StartSSL to anyone anymore and I doubt any security aware person would. That’s not a good indicator for a bright future.

References:

We need more (security) fixers!

| 2017-03-18 | Information Security, Perspectives

This past few years, interest and budgets for ethical hackers and pentesters has grown rapidly. They gain more and more visibility (see the Belgian Cyber Security Challenge or the European Cyber Security Challenge). More important, consulting companies are recruiting young and talented hackers by the dozen those last years.

During the last decade, lot of (nor to say most) TV shows and even novels have included or even starred a hacker:

  • Lisbeth Salander in Millenium,
  • Harold Finch in Person of Interest,
  • Felicity Smoak in Arrow,
  • Elliot Alderson in Mr Robot,
  • Skye in Marvell’s Agent of Shields,
  • Christopher Pelant in Bones,
  • Penelope Garcia in Criminal Minds,
  • Luther Stickell in Mission Impossible,
  • and the list goes on.

Nowadays, being an (ethical) hacker is sexy, trendy and well paid. It’s no surprise that a lot of young graduates want to embrace this professional career. As such, it is a good thing as we need more skilled and talented professionals in cyber Security.

However, it might be a bit short sighted as Artificial Intelligence’s powered automated hacking systems are on our doorstep (see DARPA’s Cyber Grand Challenge and other AI powered systems in the links at the bottom of this post).

Nevertheless, that’s not really my point here. With all these young genius at work uncovering our weaknesses, we still don’t have enough talented people to fix the issues.

WE NEED MORE FIXERS!

When I talk about fixers, I don’t only mean people skilled enough to fix the vulnerabilities discovered by our code breakers but also people able to fix governance, processes, organization and people. We need professional who can make effective security awareness (meaning that will make people change their behaviour), people who can implement a flawless IT & security governance. People able to define processes preventing attacks by design. People able to define new strategies and able to implement them (or at least to make people implement them). Person who can understand in which detail the devil is hidden. Hackers just need to find one vulnerability, we have to fix them all. It is less sexy, even more complicated and there is not enough people who wants to fix the problems… but we clearly need more. So, young geniuses, when you’ll be bored of breaking things, please come to the light side and help us fix this mess.

 

For further reading:

With the US judge ruling against Google, will GDPR force European companies to leave the cloud?

| 2017-02-09 | Cyber security, Information Security, Vie privée

You may have heard that the US federal Judge Thomas Rueter has ruled against Google in their refusal to seize personal emails of one of their customer to the FBI based on the fact that these data were stored in an European Data Center.

While in 2016, in a case against Microsoft, a federal judge ruled that US investigators could not force the company to hand over emails stored on a server in Europe (Dublin in that specific case).

Of course, there is much more at stake here than just access to one customer’s email. There is billions of dollars at stake here. Most companies and individuals in Europe are moving their data to the cloud. The biggest cloud services suppliers in the world are American based companies (Amazon, IBM, Google and Microsoft representing together around 50% of the market) and a large number of European companies are outsourcing their services to these vendors. However, the GDPR (the European General Data Protection Regulation, see also Wikipedia for an overview) requires a strong protection of our personal data (including our emails). As US and EU aren’t totally aligned on this matter, most European companies requires their cloud providers to store and process their data in European Data Centers in order to guarantee the European regulation will be enforced.

And now, this new ruling might jeopardize all that (or at least be the start of it). If the sole fact of having an American based company as a supplier can allow US to bypass the GDPR, would European companies still be allowed to use them to store personal data? Would we see European companies and individuals leaving Gmail, Google apps, AWS, Outlook and other related US based services for European based and owned companies? It would be a big mess… and maybe a huge opportunity for some European challengers.

TO BE CONTINUED…