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Category:   Application (Generic)  >   Django Vendors:   djangoproject.com
(Ubuntu Issues Fix) Django Input Validation Flaws Let Remote Users Conduct Cross-Site Scripting and Open Redirect Attacks
SecurityTracker Alert ID:  1038178
SecurityTracker URL:  http://securitytracker.com/id/1038178
CVE Reference:   CVE-2017-7233, CVE-2017-7234   (Links to External Site)
Date:  Apr 5 2017
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 1.8.18, 1.9.13, 1.10.7
Description:   Two vulnerabilities were reported in Django. A remote user can redirect the target user's browser to an arbitrary site. A remote user can conduct cross-site scripting attacks.

A remote user can create a URL that, when loaded by the target user, will redirect the target user's browser to an arbitrary site. The django.views.static.serve() function is affected [CVE-2017-7234]. The django.utils.http.is_safe_url() function is affected [CVE-2017-7233].

A remote user may also be able to exploit the django.utils.http.is_safe_url() function to cause arbitrary scripting code to be executed by the target user's browser [CVE-2017-7233]. The code will originate from the site running the Django software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Phithon Gong reported the django.utils.http.is_safe_url() vulnerability.

Impact:   A remote user can cause the target user's browser to be redirected to an arbitrary web site.

A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Django software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-3254-1

Vendor URL:  www.ubuntu.com/usn/usn-3254-1 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  12.04 LTS, 14.04 LTS, 16.04 LTS, 16.10

Message History:   This archive entry is a follow-up to the message listed below.
Apr 4 2017 Django Input Validation Flaws Let Remote Users Conduct Cross-Site Scripting and Open Redirect Attacks



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