October 2016
Intermediate to advanced
298 pages
5h 49m
English
Content preview from Mastering Modern Web Penetration TestingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Flash comes to the rescue
These days almost all web applications store files in some way or another; take, for example, social networking websites that store our pictures or dedicated storage services like Dropbox. One common problem with this is that we can upload Flash or SWF files with benign extensions like .jpg, .gif, or .png and it will be happily accepted by the server backend. The problem arises if the file is hosted on the main domain or subdomain (not sandboxed domain) of the website, but we can create a Flash file to read the HTML source of the vulnerable website and upload it there with the allowed extensions mentioned earlier. Once it is uploaded on the vulnerable website, the attacker simply needs to embed the Flash file and pass ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.