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Firesheep: Easy HTTP session hijacking from within Firefox

codebutler.com

331–340 of 356 posts

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#331

There are probably going to be a lot of people negatively affected by this for quite some time to come. One thing to point out is that there are grades of things. There is "public", and then there is "top hit on Google". Similarly, there is "insecure" and then there is "simple doubleclick tool to facilitate identity theft". How many millions of dollars and man hours is it going to take to lock down every access point…

America was a better place when people could keep their doors unlocked I hate this mythical "good old days" B.S. I know people who live in the country who don't lock their doors because they live in the country. The idea that people who lived in urban areas ever could leave their doors unlocked is absurd.

I live in Oakland. My wife and I left on a 10-day trip last summer and forgot the garage door open (the clicker didn't work or something)

Our garage leads to my office, which in turn leads to the rest of the house.

We came home shocked to see it open, and even more shocked that not a single thing was missing.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#332

Earlier quoted context omitted.

> I... haven't locked my front door during the day This isn't what people mean when they say they don't lock their doors. I grew up in the country in northeast Ohio. I knew many people who simply never locked their doors, including overnight or even when they weren't home.

I lived in middle-of-nowhere Texas for several years, and I think the only time I ever locked the door to my home was when I left for two weeks at Christmas. If my car didn't automatically lock itself after you get out, I would have left it unlocked as well, with the key lying in the center console. I live in Brooklyn now. Things are a little different here. My door has a $350 deadbolt lock that -- when it broke and…

The chance of one trying to get into a house in the middle of nowhere Texas uninvited and getting shot in the face, may serve as a deterrent equal to a $350 lock. I know a few Texans who would totally agree with that statement.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#333

Earlier quoted context omitted.

There is so many hoops I have to jump to make this work in OS X. $ mv firesheep-backend firesheep-backend.binary $ cat > firesheep-backend #!/bin/sh sudo /path/to/firesheep-backend.binary $@ ^D $ sudo chmod +x firesheep-backend Then restart Firefox and start capture. You need to run sudo once every certain period.

I keep getting a "Failed to fix permissions" error. Any insight into that?

FYI if you're still looking into this, this comment helped me http://codebutler.com/firesheep#comment_5843350

I have filevault turned on. Moving the binary out of my home folder (and adding a symbolic link) solved the problem.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#334

Earlier quoted context omitted.

On Mac OS X, it gives an error saying: Run --fix-permissions first. Run with which command? and how?

I found the binary "firesheep-backend" in: ~/Library/Application Support/Firefox/Profiles/ .default/extensions/firesheep@codebutler.com/platform/Darwin_x86-gcc3 I ran both: ./firesheep-backend --fix-permissions and sudo ./firesheep-backend --fix-permissions and it still asks me to run it with "--fix-permissions". I guess it's time to go digging around in the source to try and find out what it wants me to do. EDIT: Af…

FYI if you're still looking into this, this comment helped me http://codebutler.com/firesheep#comment_5843350

I have filevault turned on. Moving the binary out of my home folder (and adding a symbolic link) solved the problem.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#335
post #315
post #310

Earlier quoted context omitted.

People bring up the Google stat, but you have to remember they have incredible engineering resources so they probably optimize in many features every day without adding additional machines. That doesn't mean every dude with a LAMP stack out there can turn on SSL and expect the same performance, just that it's possible with mongo manpower and talent to make it work. (Google doesn't even release the details of their we…

How many web servers do you know of which are CPU bound, and not through massive code stupidity, and not I/O (in some manner - waiting on SQL, disk access, bandwidth)? Encryption can run while other threads are waiting for a response. In general , it's a negligible cost; it adds a very minor delay compared to latency / transfer time, and uses CPU otherwise highly unlikely to be pegged. If you're pushing threading lim…

It's not completely negligible--even if CPU usage is negligible, it does add latency during SSL negotiation that might be unpreferable for some apps. The testing burden is a lot higher because one wrong link to http:// in CSS, HTML, or AJAX will cause big scary messages. And there is the IP address problem, you can't vhost as most people with Apache like to do.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#336
post #263

Earlier quoted context omitted.

This is a stupid question, but what about a guy like me who has no access to a server? I'm going traveling for all of next month, the only sites I'll be checking where I'll be logged in is my hotmail account, and I might check my bank account (Chase) - both use https, so I suppose I'm in the clear then? (also when I click "log out" on these sites, it logs me out, but if my session has been hijacked, will it log the h…

Generally websites will delete the login token on their side, leaving hijackers with an invalid token and a 'log in again' page.

Generally, watch out for older sites or sites made by people that haven't learnt much in this area which may store some kind of account id in place of a key generated on each login. In that case just because the website invalidated/deleted your cookie the hijacked cookie would still be good.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#337

Earlier quoted context omitted.

America was a better place when people could keep their doors unlocked I hate this mythical "good old days" B.S. I know people who live in the country who don't lock their doors because they live in the country. The idea that people who lived in urban areas ever could leave their doors unlocked is absurd.

I live in a suburb of Atlanta and haven't locked my front door during the day in about a decade (since moving from an apartment to a house). The world isn't really as scary as the news makes it seem.

which... suburb of Atlanta?

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#338
post #337

Earlier quoted context omitted.

I live in a suburb of Atlanta and haven't locked my front door during the day in about a decade (since moving from an apartment to a house). The world isn't really as scary as the news makes it seem.

which... suburb of Atlanta?

Roswell.

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#339
post #207

There are probably going to be a lot of people negatively affected by this for quite some time to come. One thing to point out is that there are grades of things. There is "public", and then there is "top hit on Google". Similarly, there is "insecure" and then there is "simple doubleclick tool to facilitate identity theft". How many millions of dollars and man hours is it going to take to lock down every access point…

Butler has not raised the threat level on anything. This has been a widely known issue since forever . A friend of mine wrote a sniffer that could do this back in college, and he was one of the last to the party. Want something else to kvetch about? His tool could impersonate the router and act as a proxy, including serving up ssl-encrypted pages to users who didn't realize they shouldn't accept certs from unknown si…

24 hours later, more than 150000 downloads. I believe it is safe to say the threat level has indeed been raised.

http://github.com/codebutler/firesheep/downloads

Re: Firesheep: Easy HTTP session hijacking from within Firefox

#340

For anyone who has SSH access to a server (but not VPN) and is wondering what to do when you need some security in a pinch, here is a quick fix... Open an ssh connection to a server you have access to using something like the following: ssh -ND 8887 -p 22 rufus@12.120.186.8 where 8887 is the port on your laptop that you will tunnel through, -p 22 is the port the ssh server is on (22 is the default but I use a differe…

You, sir, made my day! I just set this up with my home Linksys router which is reachable from the internet and it works like a charm. I am using the Tomato firmware ( http://www.polarcloud.com/tomato ) which has an SSH daemon.

Wow, great idea! I was thinking of using my root server, but worry about wasting traffic. That would not be an issue with my DSL router at home.
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