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Protecting Back-End Systems
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Thanks Kelly, and thanks to everyone else for listening and asking questions!

Apprentice

And thank you to our attendees today. Please join us again tomorrow, same bat time, same bat channel.

@Sara "Thanks. It seems like a lot of organizations still haven't quite grasped the concept of privilege escalation. Are you seeing the same thing, or am I just looking in the wrong places?"


I'd say this is very true. To put it this way, I haven't seen many companies who do it right. I hear a lot of things like "If they are already in our network it's over!" which is the wrong mindset to have. It can go even farther, perhaps an external facing boxed wasn't popped but an internal employee has a grudge and a hacker mindset. What's to prevent him from hacking your internal network? What if one of your employees has their laptop hacked?

In short, I don't think many companies do and it's too bad!

Apprentice

@Tim "one of the attacks we hear about most frequently in e-commerce is when the attacker uses the front-end web interface to gain access to customer/credit card data in the back-end database. What are the keys to keeping attackers from going through the front end to gain access to the database?"


Good question. My advice for this would be to always assume that your front-end web service is vulnerable and can be hacked. Imagine your web server is now being used against you, does the attacker now have access to sensitive finacial information? I hope not! Proper network design is very important to seperate out these sensitive hosts (such as those that store financial information or PII). Again, security even internally is very important! Principle of least privelege will save you in these comprimise situations.

Apprentice

@mandatoryprogrammer  Thanks. It seems like a lot of organizations still haven't quite grasped the concept of privilege escalation. Are you seeing the same thing, or am I just looking in the wrong places?

Author

@Sara "Of all the things you discussed today, what do you think is the most important? (What should we definitely highlight in our textbooks, so to speak.)"


The most important thing to take away from this presentation in my mind would be to ensure that security is taken importantly externally AND internally. Too often is it the case that once you're inside of a protected network, services are left completely unprotected. Even internally it is important to enforce strong passwords, good security practices, and a security mindset. Assume that an attacker is in your network and wants to escalate!

Apprentice

@Kelly "What do you think is keeping orgs from dividing database access by user privilege designation?"

I'm honestly not sure, my only guess would be that this type of thing is not taught to developers enough. Again, the developer mindset is very different than a hacker mindset. A developer is interested in having everything work smoothly and efficiently so seperating databases may not be in the front of their minds when designing these systems.

Apprentice

@mandatoryprogrammer What do you think is keeping orgs from dividing database access by user privilege designation?

@andregironda: "what about Xml External Entities, File Inclusion, Expression Language Injection, and other RCE-over-webapp attacks?"

XML External Entities, File Inclusion, Express Language Injection and other attackers of that nature are also useful attacks that we can abuse to get an initial foothold on a network. I would've loved to include them in the talk but was unable due to time limitation.

Apprentice

Both presentations give a lot to think about. Are there sources for best practices for each of the elements of a network? I would be nice to have these implemented prior to a vulnerabiity test. Kind of like an 80/20 or 90/10 rule for ensuring a secure system.

Apprentice

Thanks Matthew! Of all the things you discussed today, what do you think is the most important? (What should we definitely highlight in our textbooks, so to speak.)

Author

Very informative.  Thank you very much.

Apprentice

:) Sorry, I meant to type @Matthew on my question!

 

Strategist

@Matthew -- What do you think is keeping orgs from dividing database access by user privilege designation?

@John, one of the attacks we hear about most frequently in e-commerce is when the attacker uses the front-end web interface to gain access to customer/credit card data in the back-end database. What are the keys to keeping attackers from going through the front end to gain access to the database?

 

Strategist

Thanks for helping us with the slides, @b_pashkoff461!

Author

Got it, stopped using IE, Chrome works fine

Apprentice

@Matthew(speaker): what about Xml External Entities, File Inclusion, Expression Language Injection, and other RCE-over-webapp attacks?

Strategist

@bstackpo   Sometimes it won't start playing on its own. Did you press play? If that doesn't work, you might want to refresh or a different browser. Sorry you're having trouble!

Author

@Curt--can we have Matthew identify his slides? Thanks!

Please comment as to what slide number he is speaking on.

 

Apprentice

could you announce when you change slides

Apprentice

Hi all -Audio is live! If you don't see the audio bar at the top of the screen, please refresh your browser. It may take a couple tries. When you see the audio bar, if it doesn't start automatically, hit the play button. If you experience audio interruptions and are using IE, try using FF or Chrome as your browser. Many people experience issues with IE. Also, make sure your flash player is updated with the current version. Some companies block live audio streams, so if that is the case for your company, the class will be archived on this page immediately following the class and you can listen then. People don't experience any issues with the audio for the archived version.

Apprentice

John Sawyer is a security rock star, so you're in good hands.

We'd love to have your voice in the class discussion here. To take part, just type your comment or question into the "Your Post" box and then click on the "Post" button below the box. Feel free to introduce yourself before the class starts -- I think you'll find that we're a very friendly learning community here! 

Author

Hey, everyone, we're glad you could join us! When the class is scheduled to start, at noon EDT, an audio player should appear above the "Your Post" window. If it doesn't appear, you might need to refresh your browser until it does. If it appears but doesn't start playing, then you may need to click on the "play" button on the far left of the player. 

Author

@kawar400, no dial-in number is needed: The lecture will play on this page. The class discussion will be here, as well -- you're in the right place!

Author

Is there a dial-in number (preferably UK) for this meeting?

Apprentice


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