HSTS - HTTP Strict Transport Security - Protect against SSL Stripping attack - Practical TLS

HSTS (HTTP Strict Transport Security) prevents a site from being accessed over HTTP if it is meant to be accessed via HTTPS. It does this using three directives: Max-Age, IncludeSubDomains, Preload. In this video we discuss the SSL Stripping attack, and discuss how HSTS prevents it.
🔑 More free lessons from the course:
kzbin.info/aero/PLIFyRwBY_4bTwRX__Zn4-letrtpSj1mzY
🔐 More details about the course:
classes.pracnet.net/courses/practical-tls
🏢 Do you configure or troubleshoot TLS/SSL for work? If so, I'm willing to bet your employer would happily pay for this SSL training. Reach out if you'd like to coordinate an introduction for a bulk license purchase with your company. I'm happy to provide a generous referral bonus =)
💬 Join Practical Networking Discord
pracnet.net/discord
00:00 - Typical Browsing - 301 to HTTPS
01:27 - SSL Attack Vector - HTTP to HTTPS redirect
01:48 - SSL Stripping Attack
03:41 - HSTS Explained
04:48 - HSTS Demonstration
06:11 - HSTS includeSubDomains
06:42 - Still Vulnerable on First Visit / HSTS Preload
08:31 - HSTS prevents clicking through browser warnings
09:10 - HSTS directives on one line
09:25 - Summary / Outro
🖧 Want to learn how how data moves through a network?
kzbin.info/aero/PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi
Since you've made it to the bottom of the Description, here's a $100 off coupon code you can use on the full course =)
YT100
#tls #ssl #hsts

[@PracticalNetworking]

📣📣 *October Birthday Month Sale* 🎂🎂 ✨🎇 *Promotion Price: $59* (Regular Price $297) 🎁🎁 Coupon Code: OctBDAY2024y 👉 More free lessons: kzbin.info/aero/PLIFyRwBY_4bTwRX__Zn4-letrtpSj1mzY

[@scottspa74]

I just sent this to my computer info systems and digital forensics current instructors to point out to them how much they're failing us. You, Ed, are doing the greatest work, you're a hero

[@PracticalNetworking]

Ha. Thank you Scott. I appreciate the shares =). Hope they sign up for my course!

[@Jamesaepp]

Followed this from reddit, binged the whole playlist. Just wanted to comment that this is incredibly well done. * I love the fading pen marks. I imagine this is great for learners for whom English is not a primary language, and it's great for when I'm reviewing/filling in small gaps while watching at 2x. :) * THANK YOU for including a couple episodes with actual math. You explained this more concisely and with better examples/context than the computerphile videos. I'll be recommending your series to anyone I know in the future who wants to better understand digital cryptography.

[@PracticalNetworking]

Hi James. Thank you for the kind words. I'm really happy you enjoyed this content as much as you did =). Yes, I love the math! Not math itself, granted, but the simpler Crypto examples really helped it click for me when I first learned all this, so I was eager to do the same to others watching the video. Do me a favor... if you're willing, do you mind posting a link or two to some of the other videos on Reddit? Self promotion is always looked at with suspicion, but a fellow Sysadmin referring good content is typically well received. No pressure either way. Thanks again for the kind words =).

[@Larry-nx8ho]

I've seen this make many wifi guest portals not be able to redirect, too. Great video, as always!

[@PracticalNetworking]

Absolutely! Glad you enjoyed it =)

[@wildmanjeff42]

Thanks for the video, very informative and easy to understand

[@PracticalNetworking]

You're welcome. Glad you enjoyed it, Jeff.

[@thriveniraghav4356]

All your videos are very informative. Thank you. Can you make videos on SD-WAN technology.

[@PracticalNetworking]

You're welcome, Thriveni. SD-WAN isn't in my expertise to teach on, I'm afraid.

[@kotemanoble1734]

Interesting, thanks for putting this out there.

[@PracticalNetworking]

You're welcome, Kaizen!

[@Alexanderslaxis]

Hey man, your tutorials are brilliant. Can you please create a new series to discuss optical networks and their components?(SONET/SDH, TDM,WDM,ROADM,RAMAN,WSS, G.709 OTN, FEC, OTN Alarms, OTN TCM, TTI, etc).

[@PracticalNetworking]

Hi Alexander, glad you're enjoying these. You listed a lot =). That is a big ask. ^_^ Regrettably, none of the acronyms seem to be within my expertise to teach =/

[@navinreddy-xx1vo]

no words, awesome videos, Thanks for video

[@PracticalNetworking]

You're very welcome!

[@jeremiahm5487]

Been a while since we heard from you. Fantastic video BTW.

[@PracticalNetworking]

Glad you enjoyed it, Jeremiah. =)

[@DonatoProce]

excellent description - thanks!!

[@PracticalNetworking]

You're welcome !

[@shahdharmik1919]

In this case of using HSTS, use of following is still vulnerable? 1. Browser extensions interception just like M-I-M attack? The manually installed ones! 2. Use of any non-standard browsers, i.e tor, lunaspace, uc browser, brave? Just curious to knw

[@1Esteband]

Excellent presentation. Thank you!

[@etpienaar]

really well thought out and explained :)

[@sonyphilipp3345]

Brilliant work

[@PracticalNetworking]

Thank you again, Sony =)

[@AshishMishra-kw2zm]

Wow ... Amazing Video ❤️❤️ ... Need session on SDN as well... VMware NSX-T please 🙏🙏

[@PracticalNetworking]

Glad you enjoyed it =). There are so many videos on my list to make. SDN is going to be a ways back. VMware probably isn't on the list, I'm afraid =(

[@Alex-hn3lc]

Very well explained thank you.🙏

[@waverache8296]

Nice explanation

[@PracticalNetworking]

Thank you, Waver =)

[@michawojcik1519]

Very informative mate, thanks a lot

[@PracticalNetworking]

You're welcome, Michal. Cheers!

[@sushilshiwaniwal]

Thanks for the shared information.

[@ayyapanr]

Hey Ed.. great explanation on ssl stripping. However I am wondering what happens if the MITM strips the HSTS headers on the response traffic in the scenario of Server MITM Client.

[@rezamirzazadefarkhani6915]

Great question. Preloading is supposed to partially address this issue by making the very first request in HTTPS. However, Preloading does not scale up to the whole internet. Therefore, if the website is not in the Preloading list and if the attacker can strip the HSTS headers by MITM, then the attack scenario you mentioned is possible.

[@DebasishMandal]

great video; thansk!

[@AliRem]

Perfect !

[@PracticalNetworking]

[@abdirahmanabdullahi1150]

Ed thank you 😊

[@PracticalNetworking]

You're welcome, Abdirahman!

[@subee128]

Thanks

[@youssefblt9839]

thanks verry infomative

[@munirajulu]

Thanks Sir 🙏

[@PracticalNetworking]

You're welcome!

[@chadsexinton]

What specifically on the browser does it use to remember that 63M seconds ?

[@HubertHeller]

Aside from security, how much will it make my website faster?

[@PracticalNetworking]

The speed gain is negligible. It could save you a round trip, in certain cases, but the main benefit of implementing HSTS should be security, not speed (that's a side perk).

[@HubertHeller]

@@PracticalNetworking what about HS TS preload? Any speed advantage there?

[@PracticalNetworking]

@@HubertHeller Again, there would be a slight advantage (in some cases) ... but speed shouldn't be the main driver of implementing HSTS =). For instance, if the user already initiated a session to the https version of the site.. there would be no visible affect to speed whether you implement HSTS and/or preload

[@govindraj1092]

Hello Master could you share me STP protocol & FHRP.. Details please

[@PracticalNetworking]

I hope to make some STP videos at some point, yes. While not explicitly about FHRP, I wrote an article on Gratuitous ARP that touches on how HSRP works, slightly. If you're interested: www.practicalnetworking.net/series/arp/gratuitous-arp

[@pavankumarkj255]

STP is explained by Keith barker here on YT. Definitely check that out. And always banger video form PN.

[@nosajix]

What about self signed warnings?

[@fekkon_rasulegando]

❤❤❤

[@kornelijekovac9793]

Why all this? Can't they just enforce SSL connection at browser level for all websites?

[@casper64]

The point is not to protect users but protect your self with encryption. If you use HSTS you can enforce encryption yourself instead of having to rely on the client

[@BrendaSnead-z7d]

Enoch Field