Vulnerability Coordination – Yes We Hack : Vulnerability Disclosure through Coordination

Alain Tiemblo – BlaBlaCar Web Security Lead Engineer

Since September 2017, BlaBlaCar has been managing with a select number of security experts a private Bug Bounty program to enhance the operational security of its platform.

Previously accessible only by invitation via BountyFactory.io, YesWeHack’s bug bounty platform, this program has enabled BlaBlaCar to remain proactive on the cyber security of its services.

Thursday April 19, BlaBlaCar’s program is public

What is your role at BlaBlaCar?

I am a backend developer profile, today overseeing application security. When I was joined BlaBlaCar, I was in charge of the platform’s performance and security. In mid-2015 and early 2016, our operational security needed to level up significantly, especially following our major fund-raising campaigns, which put BlaBlaCar under the light, pressure. So at that period of time, i took the lead of a small team to mitigate these attacks, and audit/consolidate the platform.

What is your approach to security, including coordinated vulnerability disclosure?

We have kept application security in-house for a long time. Previously, we used classical audits conducted by various companies, by several basic pentest applications, by using static analysis tools, etc. I think it helped to rough out a lot of little things that would have been detected by bug hunters.

In addition, we received a few troll messages on Twitter reporting vulnerabilities without notice and without any details… We also have some emails via customer support about potential security holes, but nothing was disclosed by these contacts, they first wanted to be paid and this, without proof of the existence of a security flaw, so it was impossible for us to enter the game.

Bug Bounty : Franchir le pas – ITW d’Alain Tiemblo @ BlaBlaCar

By YesWeHack Team | NicoladiaZ

On April 12, 2018

Depuis septembre 2017, BlaBlaCar propose à un nombre d’experts en sécurité triés sur le volet, un
programme de Bug Bounty privé afin de renforcer la sécurité opérationnelle de sa plateforme. Accessible
jusqu’alors uniquement sur invitation via BountyFactory.io, la plateforme de bug bounty de YesWeHack, ce programme a permis à BlaBlaCar de rester proactif sur la cybersécurité de ses services.

Entretien avec Alain Tiemblo Web Security Lead Engineer – @BlaBlaCar – manager du programme de Bug Bounty.

Jeudi 19 avril le programme de BlaBlaCar est public

Quel est votre rôle au sein de BlaBlaCar ?

Je suis un profil développeur backend, aujourd’hui chapeautant la sécurité applicative. Lorsque je suis arrivé à BlaBlaCar, je m’occupais de la performance et la sécurité de la plateforme. Mi 2015 début 2016, nos besoins en sécurité opérationnelle ont augmenté de manière significative notamment à la suite de nos grosses levées de fonds qui ont suscité quelques convoitises. J’ai alors pris le lead d’une petite équipe afin de mitiger ces attaques, et auditer / consolider la plateforme.

Quelle est votre démarche en termes de sécurité et notamment de divulgation coordonnée de vulnérabilités?

Nous avons pendant longtemps gardé la sécurité applicative en interne. Auparavant, nous faisions appel à des audits classiques menés par diverses entreprises, par plusieurs applications de pentest, en utilisant des outils d’analyses statiques, etc. Je pense que ça a permis de dégrossir beaucoup de petites choses qui auraient été détectées par des chasseurs de failles.

Par ailleurs, on a reçu quelques messages de trolls sur Twitter signalant des failles sans préavis et sans aucun détails…

SaXX, number one of Bounty Factory’s all time ranking.

By YesWeHack Team | NicoladiaZ

On March 31, 2018

This month, we publish an interview with one of the best researchers of our Bounty Factory called SaXX who is only 27 years old.

In the all time ranking, SaXX culminates in the first place and he intends to defend his ranking well. Like Rafael Nadal, SaXX never gives up and works hard to exercise his passion with his true mischievous side!

1. Where did you get your nickname?

Well, that’s a question a lot of people ask.
I only tell the genesis of this nickname in certain circles.

2. What’s your background?

I have a career path that some would describe as classic. I had a BAC S (maths specialization) then a BTS IG at that period of time. After the BTS, I didn’t really know what to do so I let myself be tempted by an Information Systems Management school in Lorient – France.

Interview of Gilles Cadignan – CEO & Co-Founder of Woleet

By YesWeHack Team | NicoladiaZ

On March 10, 2017

First of all, can you introduce us to Woleet?

Woleet.io was founded in Rennes in 2016. Woleet is a data anchoring platform using the Bitcoin blockchain. To sum up, we provide a SaaS platform that receives digital fingerprints of data and proceeds to anchor them in Bitcoin by linking these fingerprints to a transaction having a certain date. To achieve this, Woleet builds a cryptographic structure that allows multiple fingerprints to be put together in a single transaction.

The use of Woleet has many benefits:

Edouard Camoin, CISO of Outscale.com, on the bug bounty switching process from private to public status

By YesWeHack Team | NicoladiaZ

On January 26, 2017

Edouard Camoin, CISO of Outscale.

– What’s your role as CISO within Outscale?

First of all, Outscale deals with IaaS : like AWS we provide API and we have Branch offices in France, USA and China. Each Branch office is subject to a specific digital sovereignty.

I’ve been wearing two hats : Guarantor of the internal security and guarantor of the security for the customers.
Globally speaking the human resources are at the core of my job.

– What was the need assessment that led to the opening of a bug bounty program?

Xavier Leune, CCM Benchmark Group, on the benefits of bug bounty

By YesWeHack Team | NicoladiaZ

On January 10, 2017

Xavier Leune – CCM Benchmarck group –

What is your role in CCM benchmark ?
I am deputy CTO and i’m in charge of technical monitoring with Damien Mangin, CTO of CCM Benchmark Group.

What were the reflexion and the needs assesment that brought about a bug bounty program ?
Like any other actor on the Internet, we are experiencing increasing threats like hacking tries or malware targeting our platforms. As we are the first French leaders media company (according to Comscore), we are particularly exposed to cyber threats. Therefore, we are meant to have a proactive approach in terms of security in order to protect our users’ data.
The bug bounty Program we opened was a very important step complementary of others methods we set up (pentests, trainings). In terms of security by design, this exercise is really useful for our devs because thanks to the bug reporting they can improve the degree of security of their own code.