Archive for the ‘insight’ Category
Thursday, October 27th, 2011
TinEye is a great service that you can use to search for similar photos on the web. You provide a photo and it compares it to its database looking for similar and modified images.
You can use TinEye to quickly spot fake accounts on social networking sites.
For example. I received this LinkedIn network request the other day.
Not only have I never worked with a “Jennifer Gray”, her profile photo looks like it may be a stock photo. TinEye returned 4 results for stock photography.
Looks like this account may be a recruiting bot or something.
TinEye can also be used to verify the authenticity of a photo and to see if it is a repost or duplicate of another photo. It even has Firefox and Chrome plugins!
Tags: accounts, attempts, bad, engieering, fake, guys, identify, mrb0t, plugin, plugins, profiles, social, spot, tineye, users
Posted in insight, protips, training | 2 Comments »
Monday, May 16th, 2011
Just about three months ago I wrote a quick post about having the Motorola Xoom for approximately 12 hours.
First I’d like to address some of the points I made in my last post:
Now the TODO list:
- I have both ubuntu and backtrack5 running on this thing in chroots. While I now have access to tools like nmap, skipfish and other command line tools, some of the interesting ones (ettercap, aircrack) do not yet function due to lack of the proper kernel modules. I’ve contributed to the Tiamat kernel thread on the XDA forums asking if adding that kind of functionality was feasible.
Verdict:
Everywhere I go, I get asked “is that the new ipad?” and I answer “no, its better”. People look confused. I used to get into debates about it, but now I just dont care. I’ve accepted the fact that the vast majority of people prefer a snappy UI and pretty pictures over functionality and an open attitude. I’ve recently figured out how to get my eye-fi to work with the thing, and I’ve been out a few times while taking pictures and having them zip from my leica directly over the xoom (this is a REALLY cool party trick – I intend on utilizing this somehow combined with a projector at this years ninjapenguin party.).
This platform does everything I need that doesn’t require massive horsepower including simple security tasks – like portscanning and browsing open fileshares, nmapping, and running metasploit. I can watch movies on it, get directions (chrome to phone is awesome on this thing), watch full-screened high-res episodes of southpark from southparkstudios.com and other flash sites (since it supports flash) browse full HTML5 and flash websites, and even set it up like a mini entertainment set – with the jawbone jambox speakers setup as bluetooth speakers.
It’s overclocked from 1ghz to 1.6 ghz with little to no impact on the battery. The modified kernel allows me to have external SD storage enabled and PTP and USB OTG modes so that I can plug in external devices and storage (though I have not yet tried a mouse or keyboard, usb sticks and my leica d-lux 4 work like a champ – for some reason the d3s isn’t properly recognized, so I’ve opened a ticket with google). I hope to use it in a photography sense as well (in Vegas this year, if I’m lucky) with the square reader and squareup app – which lets me accept credit cards as an individual. I can torrent from the thing, as well as use it as a backup phone by way of a skype-in number and a bluetooth headset. The list just goes on and on!
I’ve been tapped to use it as a support tool – once at drinkup a friend had a need to use a variety of basic linux tools such as traceroute, ping and telnet – I was able to hand him my xoom in an ubuntu chroot and tell him ‘go to town’. I can use it to remote control any of my computers as well, even remotely ‘hamachi style’ using a tool called neorouter.
I intend for this to be my “computer” while I’m at Defcon/Blackhat this year. I can easily offload all my photos to it, and it does everything I need while I’m on the go. Someday I hope to actually give a talk from this thing, completely without a laptop.
tl;dr: If you just want a toy, buy an ipad. If you want a tool? Buy the xoom.
Wishlist:
- I still want a site survey tool. Especially overclocked past %50. this thing screams.
- Having the jambox speakers helps when I want other people to hear stuff, otherwise I want a case that has little ‘ears’ to funnel the speakers forward.
- Having backtrack5 on this thing is badass, but some of the more impressive stuff is unavailable – I cant send arp traffic and I cant put the wifi interface into monitor mode or inject traffic. I’ve asked about it on the xda thread.
- I really wish someone would port VLC over to android. This hardware has so much still untapped potential – I want to be able to watch a 720p mkv. Standard dvd rips work fine, highres stuff chokes – because the players don’t leverage the GPU
- I want to find out why the hell it doesn’t work with my Nikon D3s. It sees the camera, but never sees any photos. wtf?
Tags: 3.1, analysis, android, dan, honeycomb, information, infosec, motorola, oped, overview, review, security, talbet, tentler, xoom
Posted in insight, review, technology | No Comments »
Monday, May 2nd, 2011
I suppose you can call it “arriving late to the game” – I’ve only been on the full disclosure mailing list for something on the order of 6-8 months. In that timeframe I saw some interesting (but not ‘interesting enough to make the real news/blogs/etc) vulns and posts come through.
During that time I’d also spent a lot of time playing with shodan. In my downtime I’d spent hours upon hours, up until 4am some days doing searches on shodan for unprotected or easily accessible security cameras (korea has a TON of them all monitoring construction sites, for some reason). Finding traffic cameras in LA, then making a game out of trying to identify the intersection using google streetview.
That horrible movie ‘eagle eye’ starts coming to mind about now, as I’m honing my skills of being able to find all sorts of stuff and tie datapoints together.
One day on the full disclosure list I see this. The first thing I did was go STRAIGHT to shodan and start searching for dd-wrt routers accessible to the internet. I think I did this in something like Dec ’10 or Jan ’11 – I found 8000 or 9000 devices.
I wrote a quick perl script to step through the output of the search and try to see if it was worth it to do something interesting with the data, and out of the resultset I had, I got about %30. Not bad, something like 2000 dd-wrt routers, publicly available, vulnerable to a very simple information disclosure bug.
I immediately thought of Samy Kamkar. His ‘how I met your girlfriend’ talk at blackhat ’10 was hilarious and spectacular (and in getting the link to write this post I found this – cool! didn’t know that android phones were sending that data home. Thats cool and creepy at the same time) - I wondered how that would apply to my findings – so I tried a few of them. I got limited results – something like 700 or 800. Thats not too bad! The workflow kind of looked like this:
Vuln -> full disclosure -> shodan -> vuln assessment script -> google location script -> results.txt
Once I had a bunch of results in a textfile, I wasn’t really sure what to do. I knew I could try and make a google maps hack, but having never done that before I started asking around for help, so I turned to John. I told him that I’d used shodan for the datamining portion of this little quest, and he offered to help! I had no idea he’d build a little search utility around it – that was awesome. You should check it out, he did a really awesome job!
http://www.shodanhq.com/research/geomac
And heres some more background beyond what I’ve already written that details the more technical aspects of these findings:
http://www.shodanhq.com/research/geomac/report
Posted in insight, news, technology | 1 Comment »
Friday, February 25th, 2011
I was the first person in the door to pick up the new xoom at my local verizon retail store. They mentioned they only had 15, and I jokingly laughed asking “what the hell is this? no line out the door and around the building? dont people know whats going on?”
I’ve been watching the xoom for a few months now, smiling, grimacing, laughing, complaining – as the rumors and news dribbled out.
First Impressions from the first 12 hours:
PROS
- its FAST. I mean FAST.
- Angry birds goes very very fast. I presume I’ll be spending a lot of my bored-time screwing with it.
- I’m now in something like a dozen concurrent games of words with friends.
- The first thing I noticed was that it supports full-disk encryption. I turned that on right away.
- The calendar app is awesome, very fluid and easy to use.
- I can very nearly type two handed on the keyboard as if it were a regular computer keyboard. I’m certain this will improve with time, I’m making a ton of typos.
- I can video-call my fiance in england from ANYWHERE using google voice chat. Its glorious and awesome. I propped the thing up between the shifter and the dash in my car to test it, and sitting in traffic it was high res and clear, high frame rate. We’re finally in the future – I can internationally video call from the car for free.
- I love that in video-chat you can switch back and forth between the forward facing and the rear cameras. That right there will be EPIC for any instance where you need someone to show you something, and they want to see where the camera is pointing. Normally (like on laptops) this means having to point the screen away from you, so you’re filming but you can’t see what you’re filming.
- There was a root howto up less than 6 hours after I bought it.
- Using it as navigation in the car is BEAUTIFUL. That alone makes me want to build a mount for it so its held properly.
- Using it as a giant touchpad for my windows/gaming box which is plugged into my 50″ tv is GLORIOUS. It works as a giant touchpad (link). I will be using this A LOT.
- It supports multiple google accounts, allowing one to use personal and multiple ‘other’ accounts at once. This is particularly useful for me as I’m a contractor/consultant and I often have to manage multiple accounts.
- Its been said this thing will support usb host mode, meaning I should be able to plug
- One chief complaint I’ve read was that apps that were ‘made for phones’ look ‘stretched and bad’. Well, the ones I use actually look BETTER. Like wifi analyzer, tweetdeck and antennas. GPS test plus looks RAD!
- Another complaint people had were that the speakers faced back – I just hold it cupping the speakers and it channels the sound towards me. I’m half tempted to make a couple little ‘ears’ for the thing out of hard plastic that channel the sound forward, and double as an angular stand. Maybe one whole thing that does that plus has a kickstand (HINT HINT PEOPLE WHO HAVE MANUFACTURING CONTRACTS)
- I feel a lot less constrained – I imagine my phone now will not need to be checking twitter/email/gtalk/etc and I’ll be doing that on the xoom, so my phones battery should last longer.
CONS
It cant see my jawbone jambox for some reason. It can see my laptop and my phone, but not the bluetooth speakers (!?!?! no idea. I’ll wait until I get my ubertooth zero to find out wtf.) No Idea what I did differently this time, I got it working. *shrug* – sounds badass too 
- I can’t control my parrot ar.drone with it (yet) because I need to find a hack allowing the xoom to associate to ad-hoc networks – though theres another way around this by making the ar.drone associate to an infrastructure AP
- Skype doesnt support video calls (yet)
- I really like the HTC clock on my incredible. I want it on the tablet!
- Now that its rooted, I want to stream movies from my drobo – I can do that on my phone by using cifsmanager, which drops a kernel module in enabling cifs client support – so apps simply think theyre pulling from local storage. After installing it, the xoom said ‘this application isn’t installed’ when I tried to run it. Weird.
- I cant shake the feeling that I absolutely need to find a way to block the in-app ads. Even on a tablet, they take up a lot of real estate.
TODO
- Try to get nmap running
- Try to install debdroid, see what happens
- Look into seeing what it would take to get pyrit or the aircrack suite running on this thing
- I WANT DRIFTNET FOR THIS PLATFORM \o/
- I want to setup ettercap + sslstrip + daemonlogger on this platform
- I want to see a REAL site survey tool for this platform, like visiwave. That would be EPIC. I’d buy that in a heartbeat.
- A good ‘dual pane’ (like email) google reader app
- Need to see if I can turn it into a remote display for my mac or another computer.
More to come as I learn!
Tags: analysis, dan, first, hacking, impression, impressions, mobile, motorola, overview, review, tab, tablet, tentler, xoom
Posted in insight, review, technology | 6 Comments »
Sunday, January 23rd, 2011
For the last several barcamps, and the last two toorcons I’ve been presenting to large and small groups about the neat things that can be done with kinesics. I keep all the historic material (yes, including that spreadsheet) HERE.
I’ve found an organization out of San Francisco that does kinesics training, and based on all the feedback I’ve gotten from doing my talks over the last few years – people really dig this stuff. I thought it would be cool to have the pros come down and drop some knowledge on us all.
I’ve managed to arrange a training scenario with Humintell – 4 hours of clasroom training for $250 per person. We need at least 20 people to nail everything down so they’ll come see us down here in San Diego. Currently I have 13 people who have expressed interest in the class.
The idea is that I’ll arrange for the location (going to aim for Intuit, where we do barcamp) and the interested people, and they come to the location to do a 4 hour talk/workshop on a Saturday.
If this sounds in any way interesting, please email me or leave a comment! We’re getting really close to the target figure!
Tags: class, dan, kinesics, peoplehacking, tentler, training, viss, vissago
Posted in insight, training | 2 Comments »
Thursday, July 22nd, 2010
So when I get a new phone, I immediately want to try to get as much access on it as possible (read: root it). Custom roms are wonderful, but in the case of the HTC Incredible I don’t think there are custom roms (yet).
After I rooted my HTC Incredible I started doing searches in the market for interesting things. I found some neat wireless utilities, I found a file manager that lets you browse SMB fileshares on the lan (NEAT.), I found a packetsniffer, and some more interesting tools.
The light came on over my head when I realized “Wait, a packet sniffer AND a wireless access point? .. can .. I sniff.. the wifi with this?!”. As it turns out the answer is yes – it takes some fenagling, and if you do it in the wrong order one application stomps the other (I’ve already written the author of the packet capture application about this but have not gotten a response yet).
Here is a quick walkthrough on how to turn an HTC Incredible into a rogue wireless access point:
- Root the phone. This can be done by visiting http://unrevoked.com/recovery/, downloading the app, and running it.
- Once the phone is rooted, go to the market, and install the wifi tether application: Be aware though, that with the HTC incredible there are additional steps to get this application to work (see their wiki page: http://code.google.com/p/android-wifi-tether/)
- Install the packet capture application. This also will need additional steps after the installation. (http://sites.google.com/site/androidarts/packet-sniffer)
- Once you have the packet sniffer installed, configure it to log to a file instead of a sql database. I wasn’t able to find the actual database this thing logs to, but the text file appears right at the root of the sdcard. It looks just like the ‘live’ output though, which I don’t think is a proper format. It doesn’t log raw traffic at all.
- Don’t start the sniffer or wifi tether yet – they must be configured beforehand.
- Go back to wifi-tether and configure the SSID. Name it something which will attract people in search of free wifi. Linksys. Dlink. Netgear. 2WIRE858. The SSID of a target network, perhaps. Again, do not turn on tethering here yet.
- Open up the packet sniffer again, and go to the ‘wifi capture’ section, then enable the capture, and if you’d like, enable logging packets to the screen.
- Hit the phones ‘home’ button to exit without stopping the packet capture tool, and re-open the wifi tethering tool. Once in the tethering tool, enable tethering.
- Hit home again, and go re open the packet capture tool. If anybody connects, wifi tether will tell you in the status bar at the top of the display, and you will start seeing arp traffic and dhcp traffic scroll in the live feed window as you would with any other packet sniffer.
There are several caveats to this though:
- This tool appears to not capture raw packets. You can do this from a terminal using TCPdump if you feel so inclined – the packet capture tool installation instructions have you install a new version of tcpdump. You should be able to use this to capture raw traffic and not just clear text
- Packet capture has to be running before wifi tether – if you try to do it the other way around wifi tether will hang and you’ll have to kill it.
- This will also capture all the traffic from your phone to the internet, so if you’re trying to do a bunch of stuff on your phone while running a rogue access point, it will muddy your results.
This has been a fairly simple howto – you creative types will easily be able to find more interesting things to do with this.
My wishlist after figuring this out? – An app that acts like airodump – I want to see clients probing for networks so that I can “give them what they want”. I also want this packet capture tool to log raw data, not just plaintext stuff. Now that this is possible, I wish for tools like drifnet, dsniff, and others of that sort to become available on the android platform. The objective here would be to use this during a pen test as a tool to capture data, then bring it back to the labs for analysis.
Tags: 802.11, 802.11a, 802.11b/g, 802.11n, access, audit, auditing, dan, hack, incredible, pen, penetration, point, rogue, root, tentler, test, testing, viss, vissago htc, wifi, wireless
Posted in insight, review, technology, training | No Comments »
Wednesday, June 16th, 2010
How to hack a facebook account – or, basically how to hijack php sessions. Yes – this is old news – yes its a common vulnerability – but you get a better idea for what it is and how it works when things are explained in detail (with screenshots!).
Before we begin, however, I want to re-emphasize that it is VERY EASY to protect yourself against this sort of attack. Facebook supports HTTPS, so when you browse facebook (or twitter for that matter) or if you have it bookmarked – please make sure you’re using HTTPS:// rather than HTTP:// in the URL at the very least, if not using a VPN solution for further encryption. Also, if the ‘victim’ logs out of facebook, the attackers session becomes invalid – so it’s a good practice to actually log out of facebook and log back in again rather than using the ‘remember me’ checkbox.
Facebook like many sites operates using authentication cookies. Their auth cookies contain a variety of information, but for our purposes this is irrelevant. Here is a sanitized cookie for reference:
Cookie: datr=1276721606-b7f94f977295759399293c5b0767618dc02111ede159a827030fc; lsd=Xesut; lxe=greg.evans%40****************; c_user=100001230367821; lo=wl9fcGXMhPfoT4bAhKFP3Q; lxs=1; sct=1276721745; xs=a615cfe596448194d6e2a8d062a90e4e
You can see the ‘lxe’ field is the login. We haven’t done any further research into what the various other fields mean, but using facebook without any kind of security you’re both leaking the email address used for your login and the session cookie.
First thing you’ll want to do is fire up your favorite packet capture application. For this example we’ve used Wireshark:
Next, set the filter in the top left to ” http.cookie contains “datr” “. This should show you only packets captured which contain the cookie we’re looking for. You can see that in this screenshot we’ve already captured a cookie.
Once you’ve found a suitable cookie, you can copy it into the buffer by right clicking on the cookie line, and clicking Copy -> Bytes (Printable Text Only)
Next you’ll want to open up firefox. You’ll need both greasemonkey and the cookieinjector script.
Simply browse to facebook – make sure you are not logged in:
Hit ALT-C to bring up the cookie injector dialog box:
Then paste in the cookie!
Hit refresh and – VIOLA! you’re now logged in as your victim! Now this doesn’t give you access to their credentials, this is about the equivalent to walking up to their workstation while they’re away from their desk and using facebook.
Neat huh? Pretty easy too. I smiled big when we demo’ed the attack in our lab – its old, sure, but being successful is always a good feeling!
P.S: This isnt REALLY Gregory Evans account. We setup this account because .. well.. the name was available! We thought it was in good taste as the No #1 hacker’s twitter feed got hacked the other day, his site is riddled with XSS exploits, and his book is copypasta from a variety of certification exam prep books. Thanks to Nick and mckt for the work and tootilage, respectively. No noobs were harmed in the making of this film.
Tags: dan, facebook, hack, hijacking, how, information, lennox, mrb0t, nick, penetration, security, session, stealing, tentler, testing, to, viss, vissago
Posted in insight, review, technology | 29 Comments »
Sunday, June 6th, 2010
However good or bad you think you are at security, this may put a few details into perspective for you:
In the last few weeks Ligatt Security has been “making headlines” with their 90′s-esque hackers-style commercials and advertisements – the three most notable of which advertise that large black men, 12 year old boys, and “hackers” with what appear to be ethernet-enabled projectorgoggles are “out to get you”. Their fear-based marketing campaign slants the average computer users security experience using the standard “if you don’t hire us, your life is pretty much over” routine.
It’s a pretty huge bag of fail – I really hope this is a learning experience for them. One of the more important ‘scout badges’ I’ve earned in my time as a contractor so far is “practice what you preach”. A “large”, publicly traded “information security company” probably should have taken the time to do some BASIC SECURITY on their own website – CLICKY!
EDIT: After a couple of twitter posts about this they’ve firewalled me off of the host. Firewalling one guy isn’t gonna help guys, I’m certain I’m not the only person to have found a CORNUCOPIA of publicly available vulnerabilities on your site.
Tags: dan, fail, ligatt, poor security, security, tentler, tsk tsk
Posted in insight, rants, review | No Comments »
Wednesday, May 19th, 2010
Tags: brown, dan, derren, examples, hypnosis, hypnotism, language, neuro linguistic programming, nlp, tentler, video, videos
Posted in insight, training | 2 Comments »
Monday, May 10th, 2010
I just picked up one of these things. In the 3 days I’ve had it I’ve probably convinced 15 people to move to it from their iPhones, or jump to it as their next phone on verizon. Expect this to be more or less a hackers review.
This is the charted battery usage over approximately 3 days. I learned very quickly that when you go to meetups and parties and pass around a brand new phone that very few people have everybody wants to try the same stuff on it over and over again – so the thing gets quite a workout and gets handed back to you with %20 battery left.
I’m using this app to monitor the battery and produce the data for the graph. So far it works out well – except when its not running it simply doesn’t record data, so the datapoints on the bottom of the chart make the graph look a little interesting. I’ve numbered some interesting behavior on the chart:
- I recorded the Lost Abbey brewery tour for ~25 minutes. It consumed approximately %25 of the battery life
- It took 3 hours and 45 minutes to charge from roughly %35 battery life to full.
- in 40 minutes of usage I went from %80 battery to roughly %35
- Leaving the phone overnight to cycle the battery
- Disregard – You can see at the bottom of the chart the time jumps from ~09oo hours to ~1800 hours in one step.
- I’d argue ‘standard’ daily usage
- a good solid charge via my macbook
- more standard usage
First impressions: This thing is *FAST*. I mean *FAST*. Clocked at 1ghz its very impressive. My G1 would chug and choke when opening the gallery as it tried to thumbnail all the pictures. I suspect the built-in 8 gig storage may have something to do with its I/O performance as I’m guessing the onboard flash is going to behave more quickly than an sdcard. One of the first things I love thinking about is ‘can this thing run nmap/metasploit/JtR/aircrack/etc’. As far as its ability to do that – I have every confidence that the thing could take the pepsi challenge should it arise – however I’ve almost immediately noticed I have to charge this thing 2x a day if I want to use it in any lengthy amount of time. I havent actually had it DIE on me yet, but it’ll get down to %20 or so battery before I start fiddling trying to find the charger.
Its fast, and very very capable. The camera beats the pants off the G1 camera hands down and this is a very appreciated breath of fresh air after having my G1. Only drawback is that it really does consume a lot of juice. I read in the forums that some users have been able to use batteries from other phones in the incredible successfully and extend their battery lives that way.
Interested in hacking the thing? We still don’t have root on it. What does having root mean? Tethering, overclocking, the possibility of all the wonderful linux-based tools we’re used to (nmap, metasploit, etc) and more.
Here are the forums if you want to throw your hat in the ring to get root and help the community expand the functionality of this phone.
Tags: battery, chart, dan tentler, graph, htc, incredible, performance, review, verizon
Posted in insight, review, technology | No Comments »
