October 2016
Intermediate to advanced
298 pages
5h 49m
English
Content preview from Mastering Modern Web Penetration Testing
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PayPal's CSRF vulnerability to change phone numbers
In 2013, I disclosed a very serious CSRF vulnerability to the online payment giant PayPal. This vulnerability allowed a malicious attacker to silently change the number of a PayPal user, thus aiding the attacker to take over the account through the password reset option.
Well, I was checking my PayPal balance sheet back then and as soon as I tried to log into the web application of PayPal, I was prompted with an option to add and confirm a number with my PayPal account as seen in the following screenshot:
As soon as I clicked on Send Code a one-time password was received on my number, and looking ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.