December 2010
Intermediate to advanced
363 pages
12h 21m
English
book
Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses, Second Edition
by Chris Snyder, Michael Southwell, Thomas Myer
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Summary
We have continued our survey of potential threats to the safety of your users' data by abusers who take advantage of vulnerabilities in your scripts, dealing in this chapter with abuse of sessions.
After describing exactly what sessions are and how they work, we discussed two common kinds of session abuse, either hijacking or fixating them. In both cases, the abusers are attempting to use someone else's authorized access to carry out their own nefarious purposes.
We then discussed a series of possible solutions:
- Protect your sessions with SSL or TLS, which will encrypt the entire transaction.
- Insist on using cookies rather than
$_GETvariables. - Time sessions out.
- Regenerate session IDs when users change status.
- Rely on tested code abstraction. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.