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La sécurité des applications web:
Les enjeux de l'engineering des codes

INRIA-Rennes - 4 décembre 2009

Le 4 décembre 2009, au centre Inria de Rennes, en partenariat avec le pôle Images & Réseaux et la technopole Rennes Atalante, une rencontre thématique s'est déroulée autour des questions de sécurité lors de la mise en oeuvre des applications web.
Un échange de points de vue (scientifique, technologique et commercial) s'est donné pour but de mieux comprendre ces différentes problématiques:
  • Quels sont les risques?
  • Comment s'en prémunir?
  • Où en sont les techniques?
  • De quelle nature sont les initiatives internationales?
Les huit interventions ont été enregistrées par le Pôle audiovisuel (INRIA-Rennes).

Les vidéos
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François Bodin - "Introduction"
(directeur technique de CAPS Entreprise - Rennes) [1:07]
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Philippe Ensarguet - "Sécurité applicative: éléments de sensibilisation" ( Orange Business Services, IT Architecture Skills Center) [60:26]
For over ten years, many technologies have been used to develop applications on the Internet. It is clear that regardless of the technologies considered, none has proved completely secure so far. Infrastructure, software architectures and integrate new developments in many cases flaws and vulnerabilities of systems and other products in the development process. The answers so far have largely been restricted to the technical infrastructure with the audits and recommendations on the transport layers and the sealing of target operating systems and application security. Today this vision is no longer sufficient since perfectly secure infrastructure can host applications that have flaws and vulnerabilities to exploit applicative. Growing need for complementarity between infrastructure and software architecture and development is being carried out to confirm. Therefore, it becomes necessary to integrate a security that complements the infrastructure at the technical level of infrastructure software and the software development process itself, all driven by an organizational approach of guaranteeing overall process.
img-logo-pdf Les transparents (pdf)
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Frédéric Cuppens - "Dynamic identity and access management with Protekto" (Télécom Bretagne – Rennes) [58:42]
We shall present Protekto, a new Identity and Access Management (IAM) platform that implements functionalities for deploying dynamic Authentication and Authorization policies. Protekto combines mechanisms for Federation of identities (based on the SAML 2 and Open Id standards) and authorizations (based on the XACML standard) management. Protekto also integrates an administration cockpit to manage fined grained and contextual authorization policies based on the Organization Based Access Control (OrBAC) model. Using this cockpit, it is then possible to deploy the policy, including means to parameterize authentication mechanisms depending on the accessed services.
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Frédéric Besson - "Analyse statique pour la sécurité des applications Java" ( Introduction par Thomas Jensen) - projet Celtique - Inria [35:22]
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Christophe Levointurier - "Serenitec: un atelier de refactoring java automatisé" (projet ALF - Inria) [3:48]
Le projet Serenitec (Security analysis and Refactoring ENvironment for Internet TEChnology, (http://www.serenitec.com/), propose un atelier, pour le langage Java, d'aide à l'analyse et à la mise en oeuvre de la sécurité et de la qualité des codes des applications web. Cette présentation donne un aperçu des techniques étudiées dans le cadre de ce projet. En particulier nous détaillons le support pour l'implantation de techniques de refactoring des programmes. Le projet Serenitec est soutenu par la Région Bretagne dans le cadre du pôle Images et Réseaux.
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Marianne Bussière - "Présentation du projet Navis" (Projet Navis) [15:44]
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Cédric Fournet - "Modular verification of security protocol code" (Microsoft Research) [49:38]
(Joint work with Karthik Bhargavan and Andy Gordon.)
We propose a method for verifying the security of protocol implementations. Our method is based on declaring and enforcing invariants on the usage of cryptography. We implement this method for protocols coded in F# and verified using F7, an SMT-based typechecker for refinement types, that is, types carrying formulas to record invariants. As illustrated by a series of programming examples, our method flexibly deals with a wide range of cryptographic constructions and protocols. We evaluate our approach on larger case studies, including a verified implementation of the CardSpace identity-management protocol built on top of Web Services security standards. Our results indicate that compositional verification by typing scales better than domain-specific security analyses.
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Marc Schönefeld - "Java vulnerabilities explained" (Member of Red Hat Security Team - Germany) [52:11]
In the talk we will present how vulnerabiltities in the runtime environment affect the attack surface of Java Applications. We identify weak spots and look at it from a weakness evaluation perspective (according to the CWE). From that basis we move on to particular code anti-patterns and how they relate to vulnerabilities (in a CVE context). The talk focusses on Java software and details security flaws found in OpenJDK, Webservers, OpenOffice and other enterprise products. After the vulnerability perspective has been presented we present an approach to harden java applications using self-learning monitoring techniques.

 

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