Opened 10 years ago

Closed 10 years ago

#4170 closed (wontfix)

Admin password can be set to empty

Reported by: bruno@… Owned by: Adrian Holovaty
Component: contrib.admin Version: master
Severity: Keywords: password admin user auth
Cc: Triage Stage: Design decision needed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: UI/UX:

Description

Following this article: http://coderseye.com/2007/howto-reset-the-admin-password-in-django.html it appears that you can use the User model to set any password (including admin) to an empty string without a error message.

$ sudo ./manage.py shell
Python 2.4.3 (#2, Oct  6 2006, 07:52:30)
[GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from django.contrib.auth.models import User
>>> users = User.objects.all()
>>> users
[<User: bruno>]
>>> users[0].set_password('')
>>> users[0].save()
>>>

Worst is, if you connect to the admin interface, it lets you in using an empty password.

Change History (4)

comment:1 Changed 10 years ago by Simon G. <dev@…>

Triage Stage: UnreviewedDesign decision needed

We should probably fix the empty-password-allowing-login issue in admin at least.

comment:2 Changed 10 years ago by James Bennett

I'm not sure there's actually a bug here; Django lets you set your password to anything you like, and while this may sound harsh, it's up to a user not to set a really bad password.

comment:3 Changed 10 years ago by James Bennett

(and the reason why the empty-string password works, btw, is that the DB ends up storing the salted SHA1 hash of an empty string, not the empty string itself)

comment:4 Changed 10 years ago by Simon G. <dev@…>

Resolution: wontfix
Status: newclosed

Hmm.. I can definitely see both points of view here.

It just feels *wrong* to allow an empty password ever. *However*, the admin site does prevent you from changing your password to an empty one (not directly though - you get a "this field is required" validation error). The only way to change this to an empty password is via the User model (either via set_password or directly modifying it), and if a malicious user has access to that, then you have bigger issues to deal with.

I've marked this as wontfix, but if anyone else has anything to add, please jump in.

Note: See TracTickets for help on using tickets.
Back to Top