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             AUSCERT External Security Bulletin Redistribution

                       Django -- information leakage
                              5 February 2018


        AusCERT Security Bulletin Summary

Product:           python-django
Publisher:         FreeBSD
Operating System:  FreeBSD
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-6188  

Original Bulletin: 

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than FreeBSD. It is recommended that administrators
         running python-django check for an updated version of the software 
         for their operating system.

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Django -- information leakage

Affected packages
  py27-django111 < 1.11.10
  py34-django111 < 1.11.10
  py35-django111 < 1.11.10
  py36-django111 < 1.11.10
  py27-django20  < 2.0.2
  py34-django20  < 2.0.2
  py35-django20  < 2.0.2
  py36-django20  < 2.0.2


VuXML ID  d696473f-9f32-42c5-a106-bf4536fb1f74
Discovery 2018-02-01
Entry     2018-02-02

Django release notes:

    CVE-2018-6188: Information leakage in AuthenticationForm

    A regression in Django 1.11.8 made 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.

    This issue is fixed with the caveat that AuthenticationForm can no longer
    raise the "This account is inactive." error if the authentication backend
    rejects inactive users (the default authentication backend, ModelBackend,
    has done that since Django 1.10). This issue will be revisited for Django
    2.1 as a fix to address the caveat will likely be too invasive for
    inclusion in older versions.


CVE Name CVE-2018-6188
URL      https://docs.djangoproject.com/en/1.11/releases/1.11.10/
URL      https://docs.djangoproject.com/en/2.0/releases/2.0.2/

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