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44 lines
2.0 KiB
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44 lines
2.0 KiB
Plaintext
===========================
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Django 1.9.11 release notes
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===========================
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*November 1, 2016*
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Django 1.9.11 fixes two security issues in 1.9.10.
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User with hardcoded password created when running tests on Oracle
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=================================================================
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When running tests with an Oracle database, Django creates a temporary database
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user. In older versions, if a password isn't manually specified in the database
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settings ``TEST`` dictionary, a hardcoded password is used. This could allow
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an attacker with network access to the database server to connect.
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This user is usually dropped after the test suite completes, but not when using
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the ``manage.py test --keepdb`` option or if the user has an active session
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(such as an attacker's connection).
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A randomly generated password is now used for each test run.
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DNS rebinding vulnerability when ``DEBUG=True``
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===============================================
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Older versions of Django don't validate the ``Host`` header against
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``settings.ALLOWED_HOSTS`` when ``settings.DEBUG=True``. This makes them
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vulnerable to a `DNS rebinding attack
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<http://benmmurphy.github.io/blog/2016/07/11/rails-webconsole-dns-rebinding/>`_.
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While Django doesn't ship a module that allows remote code execution, this is
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at least a cross-site scripting vector, which could be quite serious if
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developers load a copy of the production database in development or connect to
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some production services for which there's no development instance, for
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example. If a project uses a package like the ``django-debug-toolbar``, then
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the attacker could execute arbitrary SQL, which could be especially bad if the
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developers connect to the database with a superuser account.
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``settings.ALLOWED_HOSTS`` is now validated regardless of ``DEBUG``. For
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convenience, if ``ALLOWED_HOSTS`` is empty and ``DEBUG=True``, the following
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variations of localhost are allowed ``['localhost', '127.0.0.1', '::1']``. If
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your local settings file has your production ``ALLOWED_HOSTS`` value, you must
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now omit it to get those fallback values.
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