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Content-Security-Policy-Vulnerability/EN/Solution Tips

40 Bytes entfernt, 11:13, 4. Apr. 2019
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Use the CSP with default-src 'none' or 'self' and without unsafe-eval or unsafe-inline directives. For more information about '''Content Security Policy''', please refer to '''[https://wiki.selfhtml.org/wiki/Sicherheit/Content_Security_Policy SELFHTML>>]'''
 
 
--snip<br>
'''Example for the header on the start page:'''
<pre> <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'"> <meta http-equiv="X-Content-Security-Policy" content="default-src 'self'; script-src 'self'"> <meta http-equiv="X-WebKit-CSP" content="default-src 'self'; script-src 'self'"></pre>
'''Configuration of the web server'''
If you can configure your own web server, which is usually not possible in low-budget hosting packages, there is this option via '''changes to .htaccess''':
<pre> # Download / Load content only from explicitly allowed sites # Example: Allow everything from own domain, nothing from external sources: Header set Content-Security-Policy "default-src 'none'; frame-src 'self'; font-src 'self';img-src 'self' siwecos.de; object-src 'self'; script-src 'self'; style-src 'self';" </pre>
Header set Content-Security-snapPolicy "default-src 'none'; frame-src 'self'; font-src 'self';img-src 'self' siwecos.de; object-src 'self'; script-src 'self'; style-src 'self';"
Here is an example of an .htaccess file which will set the '''Header Scanner''' to green.
([[Htaccess/EN|.htaccess example]])
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