Added missing release notes for older versions of Django
This commit is contained in:
parent
71b5617c24
commit
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==========================
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Django 1.3.3 release notes
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==========================
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*August 1, 2012*
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Following Monday's security release of :doc:`Django 1.3.2 </releases/1.3.2>`,
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we began receiving reports that one of the fixes applied was breaking Python
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2.4 compatibility for Django 1.3. Since Python 2.4 is a supported Python
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version for that release series, this release fixes compatibility with
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Python 2.4.
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==========================
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Django 1.3.4 release notes
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==========================
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*October 17, 2012*
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This is the fourth release in the Django 1.3 series.
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Host header poisoning
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---------------------
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Some parts of Django -- independent of end-user-written applications -- make
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use of full URLs, including domain name, which are generated from the HTTP Host
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header. Some attacks against this are beyond Django's ability to control, and
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require the web server to be properly configured; Django's documentation has
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for some time contained notes advising users on such configuration.
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Django's own built-in parsing of the Host header is, however, still vulnerable,
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as was reported to us recently. The Host header parsing in Django 1.3.3 and
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Django 1.4.1 -- specifically, ``django.http.HttpRequest.get_host()`` -- was
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incorrectly handling username/password information in the header. Thus, for
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example, the following Host header would be accepted by Django when running on
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"validsite.com"::
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Host: validsite.com:random@evilsite.com
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Using this, an attacker can cause parts of Django -- particularly the
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password-reset mechanism -- to generate and display arbitrary URLs to users.
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To remedy this, the parsing in ``HttpRequest.get_host()`` is being modified;
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Host headers which contain potentially dangerous content (such as
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username/password pairs) now raise the exception
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:exc:`django.core.exceptions.SuspiciousOperation`.
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Details of this issue were initially posted online as a `security advisory`_.
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.. _security advisory: https://www.djangoproject.com/weblog/2012/oct/17/security/
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@ -0,0 +1,60 @@
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==========================
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Django 1.3.5 release notes
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==========================
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*December 10, 2012*
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Django 1.3.5 addresses two security issues present in previous Django releases
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in the 1.3 series.
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Please be aware that this security release is slightly different from previous
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ones. Both issues addressed here have been dealt with in prior security updates
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to Django. In one case, we have received ongoing reports of problems, and in
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the other we've chosen to take further steps to tighten up Django's code in
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response to independent discovery of potential problems from multiple sources.
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Host header poisoning
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---------------------
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Several earlier Django security releases focused on the issue of poisoning the
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HTTP Host header, causing Django to generate URLs pointing to arbitrary,
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potentially-malicious domains.
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In response to further input received and reports of continuing issues
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following the previous release, we're taking additional steps to tighten Host
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header validation. Rather than attempt to accommodate all features HTTP
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supports here, Django's Host header validation attempts to support a smaller,
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but far more common, subset:
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* Hostnames must consist of characters [A-Za-z0-9] plus hyphen ('-') or dot
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('.').
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* IP addresses -- both IPv4 and IPv6 -- are permitted.
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* Port, if specified, is numeric.
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Any deviation from this will now be rejected, raising the exception
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:exc:`django.core.exceptions.SuspiciousOperation`.
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Redirect poisoning
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------------------
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Also following up on a previous issue: in July of this year, we made changes to
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Django's HTTP redirect classes, performing additional validation of the scheme
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of the URL to redirect to (since, both within Django's own supplied
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applications and many third-party applications, accepting a user-supplied
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redirect target is a common pattern).
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Since then, two independent audits of the code turned up further potential
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problems. So, similar to the Host-header issue, we are taking steps to provide
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tighter validation in response to reported problems (primarily with third-party
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applications, but to a certain extent also within Django itself). This comes in
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two parts:
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1. A new utility function, ``django.utils.http.is_safe_url``, is added; this
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function takes a URL and a hostname, and checks that the URL is either
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relative, or if absolute matches the supplied hostname. This function is
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intended for use whenever user-supplied redirect targets are accepted, to
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ensure that such redirects cannot lead to arbitrary third-party sites.
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2. All of Django's own built-in views -- primarily in the authentication system
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-- which allow user-supplied redirect targets now use ``is_safe_url`` to
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validate the supplied URL.
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@ -0,0 +1,78 @@
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==========================
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Django 1.3.6 release notes
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==========================
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*February 19, 2013*
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Django 1.3.6 fixes four security issues present in previous Django releases in
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the 1.3 series.
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This is the sixth bugfix/security release in the Django 1.3 series.
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Host header poisoning
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---------------------
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Some parts of Django -- independent of end-user-written applications -- make
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use of full URLs, including domain name, which are generated from the HTTP Host
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header. Django's documentation has for some time contained notes advising users
|
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on how to configure webservers to ensure that only valid Host headers can reach
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the Django application. However, it has been reported to us that even with the
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recommended webserver configurations there are still techniques available for
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tricking many common webservers into supplying the application with an
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incorrect and possibly malicious Host header.
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For this reason, Django 1.3.6 adds a new setting, ``ALLOWED_HOSTS``, which
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should contain an explicit list of valid host/domain names for this site. A
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request with a Host header not matching an entry in this list will raise
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``SuspiciousOperation`` if ``request.get_host()`` is called. For full details
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see the documentation for the :setting:`ALLOWED_HOSTS` setting.
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The default value for this setting in Django 1.3.6 is ``['*']`` (matching any
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host), for backwards-compatibility, but we strongly encourage all sites to set
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a more restrictive value.
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This host validation is disabled when ``DEBUG`` is ``True`` or when running tests.
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XML deserialization
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-------------------
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The XML parser in the Python standard library is vulnerable to a number of
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attacks via external entities and entity expansion. Django uses this parser for
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deserializing XML-formatted database fixtures. The fixture deserializer is not
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intended for use with untrusted data, but in order to err on the side of safety
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in Django 1.3.6 the XML deserializer refuses to parse an XML document with a
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DTD (DOCTYPE definition), which closes off these attack avenues.
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These issues in the Python standard library are CVE-2013-1664 and
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CVE-2013-1665. More information available `from the Python security team`_.
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Django's XML serializer does not create documents with a DTD, so this should
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not cause any issues with the typical round-trip from ``dumpdata`` to
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``loaddata``, but if you feed your own XML documents to the ``loaddata``
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management command, you will need to ensure they do not contain a DTD.
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.. _from the Python security team: http://blog.python.org/2013/02/announcing-defusedxml-fixes-for-xml.html
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Formset memory exhaustion
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-------------------------
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Previous versions of Django did not validate or limit the form-count data
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provided by the client in a formset's management form, making it possible to
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exhaust a server's available memory by forcing it to create very large numbers
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of forms.
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In Django 1.3.6, all formsets have a strictly-enforced maximum number of forms
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(1000 by default, though it can be set higher via the ``max_num`` formset
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factory argument).
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Admin history view information leakage
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--------------------------------------
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In previous versions of Django, an admin user without change permission on a
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model could still view the unicode representation of instances via their admin
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history log. Django 1.3.6 now limits the admin history log view for an object
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to users with change permission for that model.
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@ -0,0 +1,13 @@
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==========================
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Django 1.3.7 release notes
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==========================
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*February 20, 2013*
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Django 1.3.7 corrects a packaging problem with yesterday's :doc:`1.3.6 release
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</releases/1.3.6>`.
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The release contained stray ``.pyc`` files that caused "bad magic number"
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errors when running with some versions of Python. This releases corrects this,
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and also fixes a bad documentation link in the project template ``settings.py``
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file generated by ``manage.py startproject``.
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@ -17,7 +17,7 @@ for some time contained notes advising users on such configuration.
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Django's own built-in parsing of the Host header is, however, still vulnerable,
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as was reported to us recently. The Host header parsing in Django 1.3.3 and
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Django 1.4.1 -- specifically, django.http.HttpRequest.get_host() -- was
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Django 1.4.1 -- specifically, ``django.http.HttpRequest.get_host()`` -- was
|
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incorrectly handling username/password information in the header. Thus, for
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example, the following Host header would be accepted by Django when running on
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"validsite.com"::
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@ -27,9 +27,10 @@ example, the following Host header would be accepted by Django when running on
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Using this, an attacker can cause parts of Django -- particularly the
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password-reset mechanism -- to generate and display arbitrary URLs to users.
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To remedy this, the parsing in HttpRequest.get_host() is being modified; Host
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headers which contain potentially dangerous content (such as username/password
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pairs) now raise the exception django.core.exceptions.SuspiciousOperation
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To remedy this, the parsing in ``HttpRequest.get_host()`` is being modified;
|
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Host headers which contain potentially dangerous content (such as
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username/password pairs) now raise the exception
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:exc:`django.core.exceptions.SuspiciousOperation`.
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Details of this issue were initially posted online as a `security advisory`_.
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@ -0,0 +1,60 @@
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==========================
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Django 1.4.3 release notes
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==========================
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*December 10, 2012*
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Django 1.4.3 addresses two security issues present in previous Django releases
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in the 1.4 series.
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Please be aware that this security release is slightly different from previous
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ones. Both issues addressed here have been dealt with in prior security updates
|
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to Django. In one case, we have received ongoing reports of problems, and in
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the other we've chosen to take further steps to tighten up Django's code in
|
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response to independent discovery of potential problems from multiple sources.
|
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Host header poisoning
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---------------------
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Several earlier Django security releases focused on the issue of poisoning the
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HTTP Host header, causing Django to generate URLs pointing to arbitrary,
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potentially-malicious domains.
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In response to further input received and reports of continuing issues
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following the previous release, we're taking additional steps to tighten Host
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header validation. Rather than attempt to accommodate all features HTTP
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supports here, Django's Host header validation attempts to support a smaller,
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but far more common, subset:
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* Hostnames must consist of characters [A-Za-z0-9] plus hyphen ('-') or dot
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('.').
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* IP addresses -- both IPv4 and IPv6 -- are permitted.
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* Port, if specified, is numeric.
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|
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Any deviation from this will now be rejected, raising the exception
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:exc:`django.core.exceptions.SuspiciousOperation`.
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Redirect poisoning
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------------------
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Also following up on a previous issue: in July of this year, we made changes to
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Django's HTTP redirect classes, performing additional validation of the scheme
|
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of the URL to redirect to (since, both within Django's own supplied
|
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applications and many third-party applications, accepting a user-supplied
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redirect target is a common pattern).
|
||||
|
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Since then, two independent audits of the code turned up further potential
|
||||
problems. So, similar to the Host-header issue, we are taking steps to provide
|
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tighter validation in response to reported problems (primarily with third-party
|
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applications, but to a certain extent also within Django itself). This comes in
|
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two parts:
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||||
|
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1. A new utility function, ``django.utils.http.is_safe_url``, is added; this
|
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function takes a URL and a hostname, and checks that the URL is either
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relative, or if absolute matches the supplied hostname. This function is
|
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intended for use whenever user-supplied redirect targets are accepted, to
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ensure that such redirects cannot lead to arbitrary third-party sites.
|
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2. All of Django's own built-in views -- primarily in the authentication system
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-- which allow user-supplied redirect targets now use ``is_safe_url`` to
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validate the supplied URL.
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@ -0,0 +1,88 @@
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==========================
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Django 1.4.4 release notes
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==========================
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*February 19, 2013*
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Django 1.4.4 fixes four security issues present in previous Django releases in
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the 1.4 series, as well as several other bugs and numerous documentation
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improvements.
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This is the fourth bugfix/security release in the Django 1.4 series.
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Host header poisoning
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---------------------
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Some parts of Django -- independent of end-user-written applications -- make
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use of full URLs, including domain name, which are generated from the HTTP Host
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header. Django's documentation has for some time contained notes advising users
|
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on how to configure webservers to ensure that only valid Host headers can reach
|
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the Django application. However, it has been reported to us that even with the
|
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recommended webserver configurations there are still techniques available for
|
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tricking many common webservers into supplying the application with an
|
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incorrect and possibly malicious Host header.
|
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|
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For this reason, Django 1.4.4 adds a new setting, ``ALLOWED_HOSTS``, containing
|
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an explicit list of valid host/domain names for this site. A request with a
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Host header not matching an entry in this list will raise
|
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``SuspiciousOperation`` if ``request.get_host()`` is called. For full details
|
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see the documentation for the :setting:`ALLOWED_HOSTS` setting.
|
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The default value for this setting in Django 1.4.4 is ``['*']`` (matching any
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host), for backwards-compatibility, but we strongly encourage all sites to set
|
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a more restrictive value.
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This host validation is disabled when ``DEBUG`` is ``True`` or when running tests.
|
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|
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XML deserialization
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-------------------
|
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|
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The XML parser in the Python standard library is vulnerable to a number of
|
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attacks via external entities and entity expansion. Django uses this parser for
|
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deserializing XML-formatted database fixtures. This deserializer is not
|
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intended for use with untrusted data, but in order to err on the side of safety
|
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in Django 1.4.4 the XML deserializer refuses to parse an XML document with a
|
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DTD (DOCTYPE definition), which closes off these attack avenues.
|
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|
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These issues in the Python standard library are CVE-2013-1664 and
|
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CVE-2013-1665. More information available `from the Python security team`_.
|
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|
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Django's XML serializer does not create documents with a DTD, so this should
|
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not cause any issues with the typical round-trip from ``dumpdata`` to
|
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``loaddata``, but if you feed your own XML documents to the ``loaddata``
|
||||
management command, you will need to ensure they do not contain a DTD.
|
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|
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.. _from the Python security team: http://blog.python.org/2013/02/announcing-defusedxml-fixes-for-xml.html
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Formset memory exhaustion
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-------------------------
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|
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Previous versions of Django did not validate or limit the form-count data
|
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provided by the client in a formset's management form, making it possible to
|
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exhaust a server's available memory by forcing it to create very large numbers
|
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of forms.
|
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|
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In Django 1.4.4, all formsets have a strictly-enforced maximum number of forms
|
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(1000 by default, though it can be set higher via the ``max_num`` formset
|
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factory argument).
|
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|
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|
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Admin history view information leakage
|
||||
--------------------------------------
|
||||
|
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In previous versions of Django, an admin user without change permission on a
|
||||
model could still view the unicode representation of instances via their admin
|
||||
history log. Django 1.4.4 now limits the admin history log view for an object
|
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to users with change permission for that model.
|
||||
|
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|
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Other bugfixes and changes
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==========================
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* Prevented transaction state from leaking from one request to the next (#19707).
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* Changed a SQL command syntax to be MySQL 4 compatible (#19702).
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* Added backwards-compatibility with old unsalted MD5 passwords (#18144).
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* Numerous documentation improvements and fixes.
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@ -0,0 +1,13 @@
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==========================
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Django 1.4.5 release notes
|
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==========================
|
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|
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*February 20, 2013*
|
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|
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Django 1.4.5 corrects a packaging problem with yesterday's :doc:`1.4.4 release
|
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</releases/1.4.4>`.
|
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|
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The release contained stray ``.pyc`` files that caused "bad magic number"
|
||||
errors when running with some versions of Python. This releases corrects this,
|
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and also fixes a bad documentation link in the project template ``settings.py``
|
||||
file generated by ``manage.py startproject``.
|
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@ -44,6 +44,9 @@ Final releases
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.. toctree::
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:maxdepth: 1
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1.4.5
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1.4.4
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1.4.3
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1.4.2
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1.4.1
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1.4
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@ -53,6 +56,11 @@ Final releases
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.. toctree::
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:maxdepth: 1
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1.3.7
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1.3.6
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1.3.5
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1.3.4
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1.3.3
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1.3.2
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1.3.1
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1.3
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|
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