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diff --git a/guides/source/security.md b/guides/source/security.md index aea9728c10..a81a782cf2 100644 --- a/guides/source/security.md +++ b/guides/source/security.md @@ -377,7 +377,7 @@ In 2007 there was the first tailor-made trojan which stole information from an I Having one single place in the admin interface or Intranet, where the input has not been sanitized, makes the entire application vulnerable. Possible exploits include stealing the privileged administrator's cookie, injecting an iframe to steal the administrator's password or installing malicious software through browser security holes to take over the administrator's computer. -Refer to the Injection section for countermeasures against XSS. It is _recommended to use the SafeErb plugin_ also in an Intranet or administration interface. +Refer to the Injection section for countermeasures against XSS. **CSRF** Cross-Site Request Forgery (CSRF), also known as Cross-Site Reference Forgery (XSRF), is a gigantic attack method, it allows the attacker to do everything the administrator or Intranet user may do. As you have already seen above how CSRF works, here are a few examples of what attackers can do in the Intranet or admin interface. @@ -762,7 +762,7 @@ s = sanitize(user_input, tags: tags, attributes: %w(href title)) This allows only the given tags and does a good job, even against all kinds of tricks and malformed tags. -As a second step, _it is good practice to escape all output of the application_, especially when re-displaying user input, which hasn't been input-filtered (as in the search form example earlier on). _Use `escapeHTML()` (or its alias `h()`) method_ to replace the HTML input characters &, ", <, and > by their uninterpreted representations in HTML (`&`, `"`, `<`, and `>`). However, it can easily happen that the programmer forgets to use it, so _it is recommended to use the SafeErb gem. SafeErb reminds you to escape strings from external sources. +As a second step, _it is good practice to escape all output of the application_, especially when re-displaying user input, which hasn't been input-filtered (as in the search form example earlier on). _Use `escapeHTML()` (or its alias `h()`) method_ to replace the HTML input characters &, ", <, and > by their uninterpreted representations in HTML (`&`, `"`, `<`, and `>`). ##### Obfuscation and Encoding Injection |