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6) For the non-custom software they're running, get a copy to look at. If it's
free software you can just download it. If it's proprietary you can usually
pirate it. If it's proprietary and obscure enough that you can't pirate it you
can buy it (lame) or find other sites running the same software using google,
find one that's easier to hack, and get a copy from them.
[0] http://www.cirt.net/nikto2
[1] http://www.morningstarsecurity.com/research/whatweb
[2] http://wpscan.org/
[3] https://code.google.com/p/cms-explorer/
[4] http://sourceforge.net/projects/joomscan/
[5] https://code.google.com/p/zaproxy/
For finsupport.finfisher.com the process was:
* Start nikto running in the background.
* Visit the website. See nothing but a login page. Quickly check for sqli in the
login form.
* See if WhatWeb knows anything about what software the site is running.
* WhatWeb doesn't recognize it, so the next question I want answered is if this
is a custom website by Gamma, or if there are other websites using the same
software.
* I view the page source to find a URL I can search on (index.php isn't
exactly unique to this software). I pick Scripts/scripts.js.php, and google:
allinurl:"Scripts/scripts.js.php"
* I find there's a handful of other sites using the same software, all coded by
the same small webdesign firm. It looks like each site is custom coded but
they share a lot of code. So I hack a couple of them to get a collection of
code written by the webdesign firm.
At this point I can see the news stories that journalists will write to drum
up views: "In a sophisticated, multi-step attack, hackers first compromised a
web design firm in order to acquire confidential data that would aid them in
attacking Gamma Group..."
But it's really quite easy, done almost on autopilot once you get the hang of
it. It took all of a couple minutes to:
* google allinurl:"Scripts/scripts.js.php" and find the other sites
* Notice they're all sql injectable in the first url parameter I try.
* Realize they're running Apache ModSecurity so I need to use sqlmap [0] with
the option --tamper='tamper/modsecurityversioned.py'
* Acquire the admin login information, login and upload a php shell [1] (the
check for allowable file extensions was done client side in javascript), and
download the website's source code.
[0] http://sqlmap.org/
[1] https://epinna.github.io/Weevely/
Looking through the source code they might as well have named it Damn Vulnerable
Web App v2 [0]. It's got sqli, LFI, file upload checks done client side in
javascript, and if you're unauthenticated the admin page just sends you back to
the login page with a Location header, but you can have your intercepting proxy
filter the Location header out and access it just fine.
[0] http://www.dvwa.co.uk/
Heading back over to the finsupport site, the admin /BackOffice/ page returns
403 Forbidden, and I'm having some issues with the LFI, so I switch to using the
sqli (it's nice to have a dozen options to choose from). The other sites by the
web designer all had an injectable print.php, so some quick requests to:
https://finsupport.finfisher.com/GGI/Home/print.php?id=1 and 1=1
https://finsupport.finfisher.com/GGI/Home/print.php?id=1 and 2=1
reveal that finsupport also has print.php and it is injectable. And it's
database admin! For MySQL this means you can read and write files. It turns out
the site has magicquotes enabled, so I can't use INTO OUTFILE to write files.
But I can use a short script that uses sqlmap --file-read to get the php source
for a URL, and a normal web request to get the HTML, and then finds files
included or required in the php source, and finds php files linked in the HTML,
to recursively download the source to the whole site.
Looking through the source, I see customers can attach a file to their support
tickets, and there's no check on the file extension. So I pick a username and
password out of the customer database, create a support request with a php shell
attached, and I'm in!
--[ 5 ]-- (fail at) Escalating
___________
< got r00t? >
-----------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
^^^^^^^^^^^^^^^^
Root over 50% of linux servers you encounter in the wild with two easy scripts,
Linux_Exploit_Suggester [0], and unix-privesc-check [1].