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Fixed remote code execution through unpickling untrusted code.

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This commit is contained in:
Matthias Hannig 2016-06-28 18:04:39 +02:00
parent d65c32487c
commit 895a65fdb9
1 changed files with 15 additions and 15 deletions
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30
helpdesk/views/staff.py
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@ -773,12 +773,14 @@ def ticket_list(request):
if not (saved_query.shared or saved_query.user == request.user):
return HttpResponseRedirect(reverse('helpdesk_list'))
try:
import pickle
except ImportError:
import cPickle as pickle
import json
from helpdesk.lib import b64decode
query_params = pickle.loads(b64decode(str(saved_query.query)))
try:
query_params = json.loads(b64decode(str(saved_query.query)))
except ValueError:
# Query deserialization failed. (E.g. was a pickled query)
return HttpResponseRedirect(reverse('helpdesk_list'))
elif not ( 'queue' in request.GET
or 'assigned_to' in request.GET
or 'status' in request.GET
@ -879,12 +881,9 @@ def ticket_list(request):
search_message = _('<p><strong>Note:</strong> Your keyword search is case sensitive because of your database. This means the search will <strong>not</strong> be accurate. By switching to a different database system you will gain better searching! For more information, read the <a href="http://docs.djangoproject.com/en/dev/ref/databases/#sqlite-string-matching">Django Documentation on string matching in SQLite</a>.')
try:
import pickle
except ImportError:
import cPickle as pickle
import json
from helpdesk.lib import b64encode
urlsafe_query = b64encode(pickle.dumps(query_params))
urlsafe_query = b64encode(json.dumps(query_params))
user_saved_queries = SavedSearch.objects.filter(Q(user=request.user) | Q(shared__exact=True))
@ -1053,12 +1052,13 @@ def run_report(request, report):
if not (saved_query.shared or saved_query.user == request.user):
return HttpResponseRedirect(reverse('helpdesk_report_index'))
try:
import pickle
except ImportError:
import cPickle as pickle
import json
from helpdesk.lib import b64decode
query_params = pickle.loads(b64decode(str(saved_query.query)))
try:
query_params = json.loads(b64decode(str(saved_query.query)))
except:
return HttpResponseRedirect(reverse('helpdesk_report_index'))
report_queryset = apply_query(report_queryset, query_params)
from collections import defaultdict