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Fixed #5880 -- Fixed an XSS hole in the admin interface. 

* Escaped text that gets sent after saving the admin foreignkey popup form.
 * Added quotes around the second argument passed to `opener.dismissAddAnotherPopup` to make the function also work when a text field is used as the primary key.
 * Added a `html_unescape` javascript function to unescape the strings passed in to the `dismissAddAnotherPopup` function so that the added choice displays correctly in the dropdown box.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6691 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Gary Wilson Jr 2007-11-18 06:51:20 +00:00
parent 5f8cfe99f3
commit 38d972b9ec
2 changed files with 17 additions and 4 deletions
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14
django/contrib/admin/media/js/admin/RelatedObjectLookups.js
View File

@ -1,6 +1,16 @@
// Handles related-objects functionality: lookup link for raw_id_admin=True
// and Add Another links.
function html_unescape(text) {
// Unescape a string that was escaped using django.utils.html.escape.
text = text.replace(/&lt;/g, '<');
text = text.replace(/&gt;/g, '>');
text = text.replace(/&quot;/g, '"');
text = text.replace(/&#39;/g, "'");
text = text.replace(/&amp;/g, '&');
return text;
}
function showRelatedObjectLookupPopup(triggeringLink) {
var name = triggeringLink.id.replace(/^lookup_/, '');
// IE doesn't like periods in the window name, so convert temporarily.
@ -42,6 +52,10 @@ function showAddAnotherPopup(triggeringLink) {
}
function dismissAddAnotherPopup(win, newId, newRepr) {
// newId and newRepr are expected to have previously been escaped by
// django.utils.html.escape.
newId = html_unescape(newId);
newRepr = html_unescape(newRepr);
var name = win.name.replace(/___/g, '.');
var elem = document.getElementById(name);
if (elem) {

7
django/contrib/admin/views/main.py
View File

@ -273,10 +273,9 @@ def add_stage(request, app_label, model_name, show_delete=False, form_url='', po
post_url_continue += "?_popup=1"
return HttpResponseRedirect(post_url_continue % pk_value)
if "_popup" in request.POST:
if type(pk_value) is str: # Quote if string, so JavaScript doesn't think it's a variable.
pk_value = '"%s"' % pk_value.replace('"', '\\"')
return HttpResponse('<script type="text/javascript">opener.dismissAddAnotherPopup(window, %s, "%s");</script>' % \
(pk_value, force_unicode(new_object).replace('"', '\\"')))
return HttpResponse('<script type="text/javascript">opener.dismissAddAnotherPopup(window, "%s", "%s");</script>' % \
# escape() calls force_unicode.
(escape(pk_value), escape(new_object)))
elif "_addanother" in request.POST:
request.user.message_set.create(message=msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
return HttpResponseRedirect(request.path)