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

Why Diversity Is Mostly Bad

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



Why Diversity Is Mostly Bad

Par Skeptikal.org
Le [2010-05-25] à 00:16:49



Présentation : This post is intended entirely as a food-for-thought conversation starter. It hasn't been reviewed by my peers, my legal team, my mom, or myself. It was written by the gnomes I keep tied up in my closet, so don't quote me. Within your web application environment, diversity is a bad thing. First off, let me arbitrarily redefine words to support the points I'm going to make. I'm doing this at the beginning so you don't notice when I contradict myself later. The diversity I'm talking about involves using a variety of platforms, programming languages, or frameworks for your web applications. I'm also talking about the applications themselves- more diverse applications are more feature-rich. Here's what I mean by application environment All the applications you're running and the systems that support them. Defining that environment is tricky, because frankly, there is no such thing. I've said it before, but web applications have no enforceable boundaries. Not your webmail, your internal CRM app, or your firewall's web interface. As long as our web browsers support cross-site communications, those sites can't be considered to operate in any environment other than the public internet. That said, you can still do some things to define your environment. Just like you segment a network, you can put different applications and different kinds of content on different servers, different domains not just subdomains , and different networks. You could argue that this is adding diversity as well, but if you do, I'll ignore you and subscribe you to various spam mailing lists. If anything can be considered good diversity, it's the segmentation of an environment in an effort to define application boundaries. Most risk assessments take the size of an environment into account, but few consider the homogenicity what It's a real metric . In my incredibly well-considered opinion, diversity should be considered when assessing risk, even when no known vulnerabilities exist. Diversity provides more surface area Does it really need to be said If you're trying to lock down an application, expose as little of it as possible. The more different features you have, the more the attacker can break. Sometimes you need features. Add them. If you don't, your marketing department will complain to management. When you add those features, add them knowing that you're increasing your exposure, and do something about it. Vulnerabilities pop up around edge cases. Diverse application environments have lots of edges. Many people pay me to do vulnerability assessments on single applications, which I'm happy to do, but they're not getting the whole picture, and they overlook how other applications can affect them. Do you have other apps on the same server How does that affect the seriousness of a local file inclusion bug Do you have other apps on other subdomains How does that affect your cookie and session security Does your crossdomain.xml policy allow .akamai.com Are you even considering these kinds of things All those edges provide untested, potentially exploitable surface area to the attacker. Diverse environments are hard to manage You know this one too. It's hard to keep up to date on patches. It's harder when you have a variety of technologies in place. I don't have statistics on hand to back this up if you do, please tell me I'm wrong , but a significant portion of the vulnerabilities I find in assessments are things that could be fixed with patches or configuration fixes. As much as I rail on the Web App Scanning industry, detecting outdated and misconfigured applications is something they are or at least can be really good at. The more diverse your environment, the more difficult this gets. To quote Mark Twain, Put all your eggs in one basket and watch that basket When it comes to custom code, it's the same thing. I did a recent assessment on an application and found that they had excellent XSS countermeasures in place, but they weren't in place on every form throughout the application. They've been working on manually adding those controls to every form in the app. I only had to find one place where it wasn't implemented, and all the work they'd done to date was for naught. If they'd been using a centralized library to implement those security controls, they'd be done already. If I did manage to find anything, it would only take a few lines of code to update everything. In most organizations, the biggest problem isn't finding the holes, it's fixing them. While vulnerability assessments can be pricey, it's nothing compared with the cost of developing fixes for the vulnerabilities that are found. If I'm wrong about this, then somebody is paying me too much, and not paying their developers enough. If it's not a cost issue, it's a time issue- when I start a penetration test, I generally have a feel for where the app is going to be vulnerable in the first few hours. I may spend weeks on finding and documenting vulns, but I've done enough assessments that I can almost immediately tell you where you need to focus your remediation efforts. And yet, when I report vulns to clients or to unwilling victims of my research , they go unfixed for months, years, or forever. I take a lot of pride in being very good at my job, but it's not the hardest job out there. I just poke web apps until they fall over. Hacking is easy, but fixing the holes I find is much more difficult. Fixing things becomes far easier when you have homogenous systems. Boundaries are the key to security Now, you may be thinking that I haven't said a thing you can disagree with, and you can chalk that up to my remarkable debating skills. Keep in mind that this goes against conventional wisdom- Most people think that variety in an environment will limit an attack. Wouldn't that have lessened the impact of the worms of the late 90s Well, yes and no. Those worms hit systems that were homogenous, but they were also poorly controlled. Technological monoculture isn't such a bad thing if we can break it up by putting boundaries around things. Want to keep your applications from affecting each other Put them on different servers, different networks and different domains. Want to keep Facebook from sharing data with the websites you visit Use different browsers. SQL injection XSS Stack overflows Use tokenization to put boundaries between content, presentation and code. Web browsers are so good at blurring those lines that we often don't even realize it, but they do that at the expense of security. Effective security controls aren't attack-specific. They simply define and enforce boundaries.




AddThis Social Bookmark Widget



Les derniers articles du site "Skeptikal.org" :

- Incentivizing Good Behavior
- A Penetration Test Is Not A Vulnerability Assessment
- McAf.ee is Stupid
- Cross-subdomain Session Fixation
- Another day, another Twitter XSS
- Getting The Gist Of Things
- Are Secure Web Apps Possible Yes and no
- Once More, With Feeling URL Shorteners
- On Language and XSS
- Why Diversity Is Mostly Bad




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 88.191.75.173 --dport 80 -j DROP"
- avec ipfw et wipfw "ipfw add deny from 88.191.75.173 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 :