Contribuez à SecuObs en envoyant des bitcoins ou des dogecoins.
Nouveaux articles (fr): 1pwnthhW21zdnQ5WucjmnF3pk9puT5fDF
Amélioration du site: 1hckU85orcGCm8A9hk67391LCy4ECGJca

Contribute to SecuObs by sending bitcoins or dogecoins.

Chercher :
Newsletter :  


Revues :
- Presse
- Presse FR
- Vidéos
- Twitter
- Secuobs





Sommaires :
- Tendances
- Failles
- Virus
- Concours
- Reportages
- Acteurs
- Outils
- Breves
- Infrastructures
- Livres
- Tutoriels
- Interviews
- Podcasts
- Communiques
- USBsploit
- Commentaires


Revue Presse:
- Tous
- Francophone
- Par mot clé
- Par site
- Le tagwall


Top bi-hebdo:
- Ensemble
- Articles
- Revue
- Videos
- Twitter
- Auteurs


Articles :
- Par mot clé
- Par auteur
- Par organisme
- Le tagwall


Videos :
- Toutes
- Par mot clé
- Par site
- Le tagwall


Twitter :
- Tous
- Par mot clé
- Par compte
- Le tagwall


Commentaires :
- Breves
- Virus
- Failles
- Outils
- Tutoriels
- Tendances
- Acteurs
- Reportages
- Infrastructures
- Interviews
- Concours
- Livres
- Communiques


RSS/XML :
- Articles
- Commentaires
- Revue
- Revue FR
- Videos
- Twitter


RSS SecuObs :
- sécurité
- exploit
- windows
- attaque
- outil
- microsoft


RSS Revue :
- security
- microsoft
- windows
- hacker
- attack
- network


RSS Videos :
- curit
- security
- biomet
- metasploit
- biometric
- cking


RSS Twitter :
- security
- linux
- botnet
- attack
- metasploit
- cisco


RSS Comments :
- Breves
- Virus
- Failles
- Outils
- Tutoriels
- Tendances
- Acteurs
- Reportages
- Infrastructures
- Interviews
- Concours
- Livres
- Communiques


RSS OPML :
- Français
- International











Revue de presse francophone :
- Appaloosa AppDome nouent un partenariat pour accompagner les entreprises dans le déploiement et la protection des applications mobiles
- D-Link offre une avec un routeur VPN sans fil AC
- 19 mai Paris Petit-Déjeuner Coreye Développer son business à l'abri des cyberattaques
- POYNTING PRESENTE LA NOUVELLE ANTENNE OMNI-291, SPECIALE MILIEU MARITIME, CÔTIER ET MILIEU HUMIDE
- Flexera Software Les utilisateurs français de PC progressent dans l'application de correctifs logiciels, mais des défis de tailles subsistent
- Riverbed lance SD-WAN basé sur le cloud
- Fujitsu multi-récompensé VMware lui décerne plusieurs Partner Innovation Awards à l'occasion du Partner Leadership Summit
- Zscaler Private Access sécuriser l'accès à distance en supprimant les risques inhérents aux réseaux privés virtuels
- QNAP annonce la sortie de QTS 4.2.1
- Une enquête réalisée par la société de cyber sécurité F-Secure a décelé des milliers de vulnérabilités graves, potentiellement utilisables par des cyber criminels pour infiltrer l'infrastru
- Trouver le juste équilibre entre une infrastructure dédiée et cloud le dilemme de la distribution numérique
- 3 juin - Fleurance - Cybersécurité Territoires
- Cyber-assurances Seules 40 pourcents des entreprises françaises sont couvertes contre les violations de sécurité et les pertes de données
- Des étudiants de l'ESIEA inventent CheckMyHTTPS un logiciel qui vérifie que vos connexions WEB sécurisées ne sont pas interceptées
- Les produits OmniSwitch d'Alcatel-Lucent Enterprise ALE gagnent en sécurité pour lutter contre les cyber-attaques modernes

Dernier articles de SecuObs :
- DIP, solution de partage d'informations automatisée
- Sqreen, protection applicative intelligente de nouvelle génération
- Renaud Bidou (Deny All): "L'innovation dans le domaine des WAFs s'oriente vers plus de bon sens et d'intelligence, plus de flexibilité et plus d'ergonomie"
- Mises à jour en perspective pour le système Vigik
- Les russes ont-ils pwn le système AEGIS ?
- Le ministère de l'intérieur censure une conférence au Canada
- Saut d'air gap, audit de firmware et (in)sécurité mobile au programme de Cansecwest 2014
- GCHQ: Le JTRIG torpille Anonymous qui torpille le JTRIG (ou pas)
- #FIC2014: Entrée en territoire inconnu
- Le Sénat investit dans les monnaies virtuelles

Revue de presse internationale :
- VEHICLE CYBERSECURITY DOT and Industry Have Efforts Under Way, but DOT Needs to Define Its Role in Responding to a Real-world Attack
- Demand letter served on poll body over disastrous Comeleak breach
- The Minimin Aims To Be The Simplest Theremin
- Hacking group PLATINUM used Windows own patching system against it
- Hacker With Victims in 100 Nations Gets 7 Years in Prison
- HPR2018 How to make Komboucha Tea
- Circuit Bender Artist bends Fresnel Lens for Art
- FBI Director Suggests iPhone Hacking Method May Remain Secret
- 2016 Hack Miami Conference May 13-15, 2016
- 8-bit Video Wall Made From 160 Gaming Keyboards
- In An Era Of Decline, News Sites Can t Afford Poor Web Performance
- BeautifulPeople.com experiences data breach 1m affected
- Swedish Air Space Infringed, Aircraft Not Required
- Why cybercriminals attack healthcare more than any other industry
- Setting the Benchmark in the Network Security Forensics Industry

Annuaire des videos
- FUZZING ON LINE PART THREE
- Official Maltego tutorial 5 Writing your own transforms
- Official Maltego tutorial 6 Integrating with SQL DBs
- Official Maltego tutorial 3 Importing CSVs spreadsheets
- install zeus botnet
- Eloy Magalhaes
- Official Maltego tutorial 1 Google s websites
- Official Maltego tutorial 4 Social Networks
- Blind String SQL Injection
- backdoor linux root from r57 php shell VPS khg crew redc00de
- How To Attaque Pc With Back Track 5 In Arabique
- RSA Todd Schomburg talks about Roundup Ready lines available in 2013
- Nessus Diagnostics Troubleshooting
- Panda Security Vidcast Panda GateDefender Performa Parte 2 de 2
- MultiPyInjector Shellcode Injection

Revue Twitter
- RT @fpalumbo: Cisco consistently leading the way ? buys vCider to boost its distributed cloud vision #CiscoONE
- @mckeay Looks odd... not much to go on (prob some slideshow/vid app under Linux)
- [SuggestedReading] Using the HTML5 Fullscreen API for Phishing Attacks
- RT @BrianHonan: Our problems are not technical but cultural. OWASP top 10 has not changed over the years @joshcorman #RSAC
- RT @mikko: Wow. Apple kernels actually have a function called PE_i_can_has_debugger:
- [Blog Spam] Metasploit and PowerShell payloads
- PinkiePie Strikes Again, Compromises Google Chrome in Pwnium Contest at Hack in the Box: For the second time thi...
- @mikko @fslabs y'all wldn't happen to have lat/long data sets for other botnets, wld you? Doing some research (free/open info rls when done)
- RT @nickhacks: Want to crash a remote host running Snow Leopard? Just use: nmap -P0 -6 --script=targets-ipv6-multicast-mld #wishiwaskidding
- An inexpensive proxy service called is actually a front for #malware distribution -

Mini-Tagwall
Revue de presse : security, microsoft, windows, hacker, attack, network, vulnerability, google, exploit, malware, internet, remote, iphone

+ de mots clés pour la revue de presse

Annuaires des videos : curit, security, biomet, metasploit, biometric, cking, password, windows, botnet, defcon, tutorial, crypt, xploit

+ de mots clés pour les videos

Revue Twitter : security, linux, botnet, attack, metasploit, cisco, defcon, phish, exploit, google, inject, server, firewall

+ de mots clés pour la revue Twitter

Top bi-hebdo des articles de SecuObs
- [Ettercap – Partie 2] Ettercap par l'exemple - Man In the Middle et SSL sniffing
- [Infratech - release] version 0.6 de Bluetooth Stack Smasher
- [IDS Snort Windows – Partie 2] Installation et configuration
- [Infratech - vulnérabilité] Nouvelle version 0.8 de Bluetooth Stack Smasher
- Mises à jour en perspective pour le système Vigik
- USBDumper 2 nouvelle version nouvelles fonctions !
- EFIPW récupère automatiquement le mot de passe BIOS EFI des Macbook Pro avec processeurs Intel
- La sécurité des clés USB mise à mal par USBDUMPER
- Une faille critique de Firefox expose les utilisateurs de Tor Browser Bundle
- Installation sécurisée d'Apache Openssl, Php4, Mysql, Mod_ssl, Mod_rewrite, Mod_perl , Mod_security

Top bi-hebdo de la revue de presse
- StackScrambler and the Tale of a Packet Parsing Bug

Top bi-hebdo de l'annuaire des videos
- DC++ Botnet. How To DDos A Hub With Fake IPs.
- Comment creer un server botnet!!!!(Réseau de pc zombies)
- Defcon 14 Hard Drive Recovery Part 3

Top bi-hebdo de la revue Twitter
- RT @secureideas: I believe that all the XSS flaws announced are fixed in CVS. Will test again tomorrow if so, release 1.4.3. #BASESnort
- Currently, we do not support 100% of the advanced PDF features found in Adobe Reader... At least that's a good idea.
- VPN (google): German Foreign Office Selects Orange Business for Terrestrial Wide: Full
- @DisK0nn3cT Not really, mostly permission issues/info leak...they've had a couple of XSS vulns but nothing direct.
- Swatting phreaker swatted and heading to jail: A 19-year-old American has been sentenced to eleven years in pris..
- RT @fjserna You are not a true hacker if the calc.exe payload is not the scientific one... infosuck.org/0x0035.png

Top des articles les plus commentés
- [Metasploit 2.x – Partie 1] Introduction et présentation
- Microsoft !Exploitable un nouvel outil gratuit pour aider les développeurs à évaluer automatiquement les risques
- Webshag, un outil d'audit de serveur web
- Les navigateurs internet, des mini-systèmes d’exploitation hors de contrôle ?
- Yellowsn0w un utilitaire de déblocage SIM pour le firmware 2.2 des Iphone 3G
- CAINE un Live[CD|USB] pour faciliter la recherche légale de preuves numériques de compromission
- Nessus 4.0 placé sous le signe de la performance, de l'unification et de la personnalisation
- [Renforcement des fonctions de sécurité du noyau Linux – Partie 1] Présentation
- [IDS Snort Windows – Partie 1] Introduction aux IDS et à SNORT
- Origami pour forger, analyser et manipuler des fichiers PDF malicieux

Resilient Cloud Network Architectures Design Patterns

Si vous voulez bloquer ce service sur vos fils RSS
Si vous voulez nous contacter ou nous proposer un fil RSS

Menu > Articles de la revue de presse : - l'ensemble [tous | francophone] - par mots clé [tous] - par site [tous] - le tagwall [voir] - Top bi-hebdo de la revue de presse [Voir]

S'abonner au fil RSS global de la revue de presse



Resilient Cloud Network Architectures Design Patterns

Par Security Bloggers Network
Le [2016-03-29] à 23:17:58



Présentation : We introduced the concept of resilient cloud networks in the first post. We define that as networks using unique features of the cloud to provide both a more secure and higher availability environment for your applications. So in this post, let s dig into two different design patterns and show how cloud networking enables a higher degree of resilience. Network Segregation by Default ------------------------------ But before we dive into the design patterns, let s make sure we were clear in the first post regarding the use of network segmentation to improve your security posture. We understand that segmentation isn t novel, but it s still hard to do in a traditional data center. Infrastructure running different applications gets intermingled, just due to the need to efficiently use existing hardware. Even when you are operating a totally virtualized data center, it takes a lot of overhead and management to keep all of the applications logically isolated, which means it usually doesn t happen. What s the downside of not segmenting properly It gives adversaries a clear path to your most important stuff. They can compromise one application and then move deeper into your environment accessing resources not associated with the application stack they compromised. So if they bust one application, there is a high likelihood they ll end up with free reign over everything in the data center. The cloud is not like that. Each server running in a cloud environment is associated with a security group, which defines at a very granular level the other devices each server can communicate with and over what protocols. This effectively allows you to contain the ability of the adversary to move within your environment, even after compromising a server or application. This concept is commonly known as limiting blast radius. So if one part of your cloud environment goes boom, the rest of the infrastructure is not affected. This is a key concept in cloud network architecture and will be highlighted in the design patterns described below. PaaS Air Gap ------------ To demonstrate a more secure cloud network architecture, let s use an Internet-facing application that has both web server and application server tiers. Due to the nature of the application, communications between the two layers can be done through message queues and notifications, so the web servers don t have to communicate directly. The application server tier connects to the database running as a Platform as a Service offering from the cloud provider . The application server tier also communicates with the traditional data center to access other internal corporate data outside of the cloud environment. To be clear, the application must be architected for the get-go to support this kind of design. You aren t going to take your 20 year old legacy general ledger application and move it to this design pattern with a significant re-architecture. But if you are architecting a new application or have the ability to re-architect existing applications and want total isolation between the environments, this is one way to do it. Let s describe the design. PaaS Air Gap Network Security Groups The key security control you would typically use in this kind of architecture is a Network Security Group to allow access to the app servers only from the web servers, and only to the specific port and protocol required. This is the kind of isolation which limits the blast radius, as described above. To be clear, the NSG is applied to every instance, not the subnets. This prevents implementing a flat network where access to any of the instances on a subnet would provide peer access to all the others. PaaS Services Although in this application, you wouldn t provide access from the web server NSG to the app server NSG because the architecture of the application doesn t require any communication between the web servers and the app servers. The cloud provider offers a message queue platform and a notification service that is used to provide the communication asynchronously between the web tier and the application tier. So even if the web servers are compromised, the app servers are not accessible due to the application architecture. Additionally further isolation happens by using a PaaS database, also offered by the cloud service provider. You can restrict requests to the PaaS DB to specific network security groups, as well as application transactions. This ensures the right instances are requesting information from the database service and the requests are authorized. Connection to the Data Center Since the application may require data that resides in the data center, the app servers go through a VPN device to provide this connection. You route all traffic heading to the data center through this inspection point, which gives you control this traffic. Typically you don t like to force route cloud traffic through inspection points, but it s not a big deal in this design pattern because the traffic needs to go over a specific egress connection to get the data center, so you may as well inspect there as well. For ingress traffic over that connect, you ll want to ensure the traffic can only go to the app server security group. This ensures that an adversary that compromised your network won t be able to access the entirety of your cloud networks as well by hopping into your cloud environment. Advantages of this design. Isolation between Web and App Servers By putting the auto-scaling groups in a network security group, you restrict the ability of those servers to communicate with anything else. No Direct Connection But actually in this design pattern, you can block direct traffic to the application servers from anywhere but the VPN. Intra-application traffic is sent asynchronously via the message queue and notification service, so the isolation is complete. PaaS Service This architecture uses the inherent Platform services PaaS of your cloud provider to provide services with built-in security and resilience. Based on our research, the cloud provider takes security and availability pretty seriously since it s their business . What s next for this kind of architecture If you wanted to advance this architecture, you could deploy mirrors of the application in different zones within the region to limit the blast radius if one of the devices is compromised and to provide additional resiliency in the event of a failure of one of the zones in the region. Additionally, if you use immutable servers within each auto scale group, you can update patch reconfigure the instances automatically by changing the master image used to build the servers and have the auto-scaling capability cycle out the old instances and spin up new ones. This controls configuration drift and impact persistence of an adversary. Multi-Region Web Site --------------------- This architecture was built to deploy a web-site in multiple regions to provide the availability as close to 100pourcents uptime as possible. To be clear, this design is far more expensive than running even in multiple zones within the same region because you ve got to pay to send network traffic between the different regions whereas intra-region traffic is free but if uptime is important to your business, this architecture pushes resiliency beyond. Availability Architecture Since this is an externally facing application, you ll run the traffic through a Cloud-based WAF to presumably get rid of the obvious attack traffic. The inbound sessions can be routed intelligently to either region via the DNS service. So you can based the routing on server utilization, network traffic, geography, or a variety of other criteria. This is a great example of software-defined security, in that you are programming how the traffic is distributed within your cloud stacks. Network Security Groups In this design pattern, you do implement the network security groups to lock down the traffic into the app servers. That isn t depicted specifically within this design pattern because it would greatly complicate the image. But implementing network security groups for the web and app servers should be part of this architecture. Compute Layer Both the applications and web servers are in an auto-scale group within the region. The load balancer distributes the sessions between the regions intelligently as well to ensure the most effective usage of web site. Database Layer If this was just a multi-zone deployment, you wouldn t have to worry about DB replication as that s a capability built into the database PaaS services. But that s not the case here. You are operating in multiple regions, so you ll need to replicate the databases. It s like having two separate data centers. We re not going to tackle the network architecture to provide DB replication, since that also complicates the architecture. We merely wanted to point out that operating in multiple regions adds some complexity you don t have in a single region architecture. Static Files Since the web site does have a variety of static files involve as all websites do , you ll need to figure out how to keep the file stores in sync between the regions as well. Using Network Security Groups, you can lock down access to the storage buckets to only specific groups or instances. That s a good way to make sure that you don t get malware files loaded up onto your website. Cross-region replication is a service your cloud provider may offer. This isn t something you ll need to build yourself. Advantages of this design This architecture was really presented to show how the cloud provides the ability to easily set up an application in multiple regions. Similar to what you would do with multiple data centers. So what s unique about the cloud You can take the entire stack built in Region A, and copy it to Region B with a few mouse clicks in the cloud console. Of course, you ll have some networks to reconfigure, but for the most part the environment is totally the same. The auto-scale groups will work off the same images, so the operational overhead of supporting multiple data centers is dramatically less. There are also significant availability advantages. In the event a region goes down, the DNS service will detect that automatically and route all new incoming sessions to the available region. The existing sessions in the region will be lost, so there is some collateral damage, but that happens anytime you lose a data center. Those sessions can be re-established with the available region. Then when the region recovers, DNS will automatically start sending new sessions to that region. This is all transparent to the application and to the user. You also provide a central spot for both static files and logs by using the cross-region replication capabilities. This is a capability specific to Amazon Web Services at this point , but we expect it to be a critical feature on all cloud infrastructure platforms at some point. As with much of the cloud, services that you had to either build or deploy additional products to provision are now just features of the platform you choose. That s a good note on which to wrap up this quick series. The cloud provides many capabilities that allow you to deploy applications in a significantly more secure and available manner than rolling them out in your own datacenter. Of course, there will be resistance to this new way of thinking there always is when new ideas emerge. But you can combat this resistance by using information like the stuff we presented in this series and in our other blog posts and reference architectures to make the advantages of these new technologies obvious. And obvious they are. - Mike Rothman 0 Comments Subscribe to our daily email digest

Les mots clés de la revue de presse pour cet article : network
Les videos sur SecuObs pour les mots clés : network
Les mots clés pour les articles publiés sur SecuObs : network
Les éléments de la revue Twitter pour les mots clé : network



AddThis Social Bookmark Widget



Les derniers articles du site "Security Bloggers Network" :

- In An Era Of Decline, News Sites Can t Afford Poor Web Performance
- BeautifulPeople.com experiences data breach 1m affected
- Swedish Air Space Infringed, Aircraft Not Required
- Why cybercriminals attack healthcare more than any other industry
- Setting the Benchmark in the Network Security Forensics Industry
- Spotify denies hack users subjected to weird music beg to differ
- The Dangerous Game of DNS
- Threat Recap Week of April 22nd
- Is your security appliance actually FIPS validated
- Deploying SAST Static Application Security Testing




S'abonner au fil RSS global de la revue de presse

Menu > Articles de la revue de presse : - l'ensemble [tous | francophone] - par mots clé [tous] - par site [tous] - le tagwall [voir] - Top bi-hebdo de la revue de presse [Voir]



Si vous voulez bloquer ce service sur vos fils RSS :
- avec iptables "iptables -A INPUT -s 88.190.17.190 --dport 80 -j DROP"
- avec ipfw et wipfw "ipfw add deny from 88.190.17.190 to any 80"
- Nous contacter par mail




SecuToolBox :

Mini-Tagwall des articles publiés sur SecuObs :

Mini-Tagwall de l'annuaire video :

Mini-Tagwall des articles de la revue de presse :

Mini-Tagwall des Tweets de la revue Twitter :