Commit Graph

14 Commits

Author SHA1 Message Date
Luke Plant 90ac02300e Fixed #14565 - No csrf_token on 404 page.
This solution doesn't have the negative side-effects of [14356].

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14377 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-28 11:47:15 +00:00
Luke Plant 45c7f427ce Fixed #14445 - Use HMAC and constant-time comparison functions where needed.
All adhoc MAC applications have been updated to use HMAC, using SHA1 to
generate unique keys for each application based on the SECRET_KEY, which is
common practice for this situation. In all cases, backwards compatibility
with existing hashes has been maintained, aiming to phase this out as per
the normal deprecation process. In this way, under most normal
circumstances the old hashes will have expired (e.g. by session expiration
etc.) before they become invalid.

In the case of the messages framework and the cookie backend, which was
already using HMAC, there is the possibility of a backwards incompatibility
if the SECRET_KEY is shorter than the default 50 bytes, but the low
likelihood and low impact meant compatibility code was not worth it.

All known instances where tokens/hashes were compared using simple string
equality, which could potentially open timing based attacks, have also been
fixed using a constant-time comparison function.

There are no known practical attacks against the existing implementations,
so these security improvements will not be backported.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@14218 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-14 20:54:30 +00:00
Russell Keith-Magee 1070c57b83 Fixed #14436 -- Escalated 1.2 PendingDeprecationWarnings to DeprecationWarnings, and removed 1.1 deprecated code.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@14138 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-11 12:20:07 +00:00
Russell Keith-Magee fea159282b Fixed #14406 -- Added a Python 2.4 compatibility to the logging interface. Thanks to Łukasz Rekucki for the report, and to Luke Plant for original patch this was based on.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13989 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-06 15:02:26 +00:00
Russell Keith-Magee 24acca4139 Fixed #12012 -- Added support for logging. Thanks to Vinay Sajip for his draft patch, and to the many people who gave feedback during development of the patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13981 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-10-04 15:12:39 +00:00
Luke Plant 364583b894 Fixed #14235 - UnicodeDecodeError in CSRF middleware
Thanks to jbg for the report.

This changeset essentially backs out [13698] in favour of a method that
sanitizes the token rather than escaping it.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@13732 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-09-10 22:56:56 +00:00
James Bennett 9e3b327aca Patch CSRF-protection system to deal with reported security issue. Announcement and details to follow.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@13698 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-09-09 00:34:54 +00:00
Luke Plant e8cff0b8f3 Added explanatory note on CSRF failure page for the case of a missing Referer header.
This is intended to help power users who have disabled Referer headers, or
installed add-ons which have done so, and to help web site administrators
with debugging, since this problem will be browser specific and not a
programming error.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@13680 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-09-03 16:28:10 +00:00
Luke Plant f92a21daa7 Added proper code comments for the HTTPS CSRF protection.
Refs #13489 which noticed a vague comment - thanks pmclanahan



git-svn-id: http://code.djangoproject.com/svn/django/trunk@13405 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-06-30 22:30:37 +00:00
Luke Plant ac8b7ff021 Fixed #13716 - the CSRF get_token function stopped working for views with csrf_view_exempt
This was a regression caused by the the CSRF changes in 1.2.

Thanks to edevil for the report.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@13336 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2010-06-08 14:35:48 +00:00
Luke Plant 905dba3694 Misc clarifications in csrf middleware comments
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11673 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-10-27 21:31:20 +00:00
Luke Plant d0b900e6f5 Slight change to CSRF error messages to make debugging easier.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11669 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-10-27 14:04:21 +00:00
Luke Plant c2ffe94d9a Removed unused import.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@11664 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-10-27 00:49:33 +00:00
Luke Plant 7230a995ce Moved contrib.csrf.* to core code.
There is stub code for backwards compatiblity with Django 1.1 imports.

The documentation has been updated, but has been left in
docs/contrib/csrf.txt for now, in order to avoid dead links to
documentation on the website.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@11661 bcc190cf-cafb-0310-a4f2-bffc1f526a37
2009-10-27 00:36:34 +00:00