CVE Vulnerabilities

CVE-2016-2048

Improper Access Control

Published: Feb 08, 2016 | Modified: Nov 28, 2016
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
CVSS 2.x
6 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P
RedHat/V2
3.5 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N
RedHat/V3
Ubuntu
MEDIUM

Django 1.9.x before 1.9.2, when ModelAdmin.save_as is set to True, allows remote authenticated users to bypass intended access restrictions and create ModelAdmin objects via the Save as New option when editing objects and leveraging the change permission.

Weakness

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Software

Name Vendor Start Version End Version
Django Djangoproject 1.9 (including) 1.9 (including)
Django Djangoproject 1.9.1 (including) 1.9.1 (including)
Python-django Ubuntu upstream *

Extended Description

Access control involves the use of several protection mechanisms such as:

When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References