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Django security releases issued: 1.10.7, 1.9.13, and 1.8.18

In accordance with our security release policy, the Django team is issuing Django 1.10.7, Django 1.9.13 and 1.8.18. These release addresses two security issues detailed below. We encourage all users of Django to upgrade as soon as possible. The Django master and stable/1.11.x branches are also updated. The Django 1.11 release is forthcoming shortly in a separate blog post.

CVE-2017-7233: Open redirect and possible XSS attack via user-supplied numeric redirect URLs

Django relies on user input in some cases (e.g. django.contrib.auth.views.login() and i18n) to redirect the user to an "on success" URL. The security check for these redirects (namely django.utils.http.is_safe_url()) considered some numeric URLs (e.g. http:999999999) "safe" when they shouldn't be.

Also, if a developer relies on is_safe_url() to provide safe redirect targets and puts such a URL into a link, they could suffer from an XSS attack.

CVE-2017-7234: Open redirect vulnerability in django.views.static.serve()

A maliciously crafted URL to a Django site using the django.views.static.serve() view could redirect to any other domain. The view no longer does any redirects as they don't provide any known, useful functionality.

Note, however, that this view has always carried a warning that it is not hardened for production use and should be used only as a development aid.

Thanks Phithon Gong for reporting this issue.

Affected supported versions

  • Django master development branch
  • Django 1.11 (at release candidate status, final release forthcoming)
  • Django 1.10
  • Django 1.9
  • Django 1.8

Per our supported versions policy, Django 1.7 and older are no longer receiving security updates. Also, Django 1.9.x has reached end-of-life -- this is the final release of that series.

Resolution

Patches to resolve the issues have been applied to Django's master development branch and the 1.11, 1.10, 1.9, and 1.8 release branches. The patches may be obtained from the following changesets:

On the development master branch:

On the 1.11 release branch:

On the 1.10 release branch:

On the 1.9 release branch:

On the 1.8 release branch:

The following releases have been issued:

The PGP key ID used for these releases is Tim Graham: 1E8ABDC773EDE252.

General notes regarding security reporting

As always, we ask that potential security issues be reported via private email to security@djangoproject.com, and not via Django's Trac instance or the django-developers list. Please see our security policies for further information.

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