Mercurial > p > roundup > code
view roundup/scripts/roundup_admin.py @ 5201:a9ace22e0a2f
issue 2550690 - Adding anti-csrf measures to roundup following
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet
and
https://seclab.stanford.edu/websec/csrf/csrf.pdf
Basically implement Synchronizer (CSRF) Tokens per form on a page.
Single use (destroyed once used). Random input data for the token
includes:
system random implementation in python using /dev/urandom
(fallback to random based on timestamp as the seed. Not
as good, but should be ok for the short lifetime of the
token??)
the id (in cpython it's the memory address) of the object
requesting a token. In theory this depends on memory layout, the
history of the process (how many previous objects have been
allocated from the heap etc.) I claim without any proof that for
long running processes this is another source of randomness. For
short running processes with little activity it could be guessed.
last the floating point time.time() value is added. This may
only have 1 second resolution so may be guessable.
Hopefully for a short lived (2 week by default) token this is
sufficient. Also in the current implementation the user is notified when
validation fails and is told why. This allows the roundup admin to find
the log entry (at error level) and try to resolve the issue. In the
future user notification may change but for now this is probably best.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Sat, 18 Mar 2017 16:59:01 -0400 |
| parents | 86ef4ab17dc5 |
| children | 1045b8eb0a3b |
line wrap: on
line source
# Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/) # This module is free software, and you may redistribute it and/or modify # under the same terms as Python, so long as this copyright message and # disclaimer are retained in their original form. # # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE, # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. """Command-line script stub that calls the roundup.admin functions. """ __docformat__ = 'restructuredtext' import sys # --- patch sys.path to make sure 'import roundup' finds correct version import os.path as osp thisdir = osp.dirname(osp.abspath(__file__)) rootdir = osp.dirname(osp.dirname(thisdir)) if (osp.exists(thisdir + '/__init__.py') and osp.exists(rootdir + '/roundup/__init__.py')): # the script is located inside roundup source code sys.path.insert(0, rootdir) # --/ # python version check from roundup import version_check # import the admin tool guts and make it go from roundup.admin import AdminTool from roundup.i18n import _ def run(): # time out after a minute if we can import socket if hasattr(socket, 'setdefaulttimeout'): socket.setdefaulttimeout(60) tool = AdminTool() sys.exit(tool.main()) if __name__ == '__main__': run() # vim: set filetype=python ts=4 sw=4 et si
