Commit Graph

6 Commits

Author SHA1 Message Date
mutantmonkey
d138755806 do a proper same-origin check
String prefix matching is hacky and provides insufficient checking if it
does not end with a /.
2015-10-13 19:55:32 -07:00
mutantmonkey
a3723d3665 short-circuit on origin header
If the Origin header is present, we can check it and skip the other
checks.
2015-10-12 01:23:06 -07:00
mutantmonkey
a7ae455ac1 strict referrer check improvements
* Always check Origin if it is present, regardless of headers sent
* Whitelist X-Requested-With header
2015-10-12 00:28:04 -07:00
mutantmonkey
cd83f9f0eb fix CSP referrer policy
The policy of "referrer none" was incorrect and was nonfunctional. With
this change, the CSP referrer policy is set to origin, which
will causes only the origin to be sent for requests made from the main
site.

A fix was also needed for referrer checks in two places.
2015-10-11 23:49:15 -07:00
mutantmonkey
39d874374d trim trailing / for origin checking 2015-10-11 20:06:14 -07:00
mutantmonkey
6ff181facb add strict referrer check for POST uploads
This should protect against cross-site request forgery without the need
for cookies. It continues to allow requests with Linx-Delete-Key,
Linx-Expiry, or Linx-Randomize headers as these will not be set in the
case of cross-site requests.
2015-10-08 20:27:04 -07:00