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                             CERT-Renater

                 Note d'Information No. 2018/VULN048
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DATE                : 12/02/2018

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Django versions prior to 2.0.2,
                                         1.11.10.

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https://www.djangoproject.com/weblog/2018/feb/01/security-releases/
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Django security releases issued: 2.0.2 and 1.11.10
Posted by Tim Graham on février 1, 2018


In accordance with our security release policy, the Django team is
issuing Django 1.11.10 and Django 2.0.2. These release addresses the
security issue detailed below. We encourage all users of Django to
upgrade as soon as possible.


CVE-2018-6188: Information leakage in AuthenticationForm

A regression in Django 1.11.8 made
django.contrib.auth.forms.AuthenticationForm run its
confirm_login_allowed() method even if an incorrect password is
entered. This can leak information about a user, depending on what
messages confirm_login_allowed() raises. If confirm_login_allowed()
isn't overridden, an attacker enter an arbitrary username and see if
that user has been set to is_active=False. If confirm_login_allowed()
is overridden, more sensitive details could be leaked.

Thanks Jack Cushman for reporting this issue.


Affected supported versions

    Django master branch
    Django 2.0 and 2.0.1
    Django 1.11.8 and 1.11.9

Per our supported versions policy, Django 1.10 and 1.9 are no longer
supported (but aren't affected). Django 1.8 LTS (for which security
support ends on April 1) is unaffected.


Resolution

Patches to resolve the issue have been applied to Django's master
branch and the 2.0 and 1.11 release branches. The patches may be
obtained from the following changesets:

    On the master branch
    On the 2.0 release branch
    On the 1.11 release branch

The following releases have been issued:

    Django 1.11.10 (download Django 1.11.10 | 1.11.10 checksums)
    Django 2.0.2 (download Django 2.0.2 | 2.0.2 checksums)

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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