 Hey guys, John Hammond here at Pico CTF 2017. I'm hopping over to the forensics category and this 70-point challenge is called meta find me So find location of the flag in the image image JPEG. No latitude and laundry values are in degrees with no degree symbols Direction letters minus blah blah blah. They should only be digits. The flag is not just a set of coordinates if you think that keep looking Okay, huh? So let's check out this image Copy link address. Let's make a new directory to work in Let's get this image and let's EOG this thing to see what we have to do a feed dog at Groot Trees Remove hacking books in the office. So, okay I'm going to take the meta portion of this title as kind of a hint or a nod towards look at the meta data or the pieces of information that get Taken and then stored with a picture or with a file So you can explore those things with a tool called exif tool if you're working on Really a computer But it's pretty easy to install on on Linux So if you needed to you can see to apt install exif tool and you should be able to do just that So exif tool with the image that you want as an argument. It says whoa Okay, a ton of stuff right different things that are actually included in here blah blah blah file name directory file size You probably saw it on the very bottom. There is a comment here Your flag is flag to meta for me lat long 7 360 now find the GPS coordinates of this image degrees only please, okay, huh? So we are also given the GPS position down on the very very bottom 77 degrees in latitude 172 degrees in longitude. So that should be our flag right 77 172 replacing those Let's try that nano flag dot text 77 and 172 let's cap that out Put it in the clipboard and let's see if that is the flag go ahead and submit and it is okay Awesome, so super simple challenge right just checking out the metadata of a particular file in this case an image And that's super easy to do with exif tool. So keep exif tool in mind That's what I consider is kind of like part of the checklist part of the low-hanging fruit to run on pretty much Every file that you ever see in a catch-the-flag competition like if you've been given like either a picture Or some kind of thing run file on it run exif tool run bin walk foremost, etc Etc. So those are things you should keep in mind and totally check out. Hey the video is over But I do want to give a little special shout out to the people that support me on patreon These individuals are incredible. They supported me a little bit and I can't thank you enough every little bit helps me Just a I'm just a guy trying to put food in the table. So I really really appreciate it getting some love Thanks for being willing to just take out your credit card and help me along this journey. It's incredible One dollar a month on patreon will give you a special shout out just like this at the end of every video $5 a month will give you early access to all the videos that I record before they get released on YouTube And if you did like this video, please do press that like button Maybe leave me a comment maybe subscribe if you're willing to support me on patreon or check out my website www.johnhammon.org see you soon