CVE Vulnerabilities

CVE-2016-2825

Improper Access Control

Published: Jun 13, 2016 | Modified: Oct 30, 2018
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
4.3 MODERATE
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu

Mozilla Firefox before 47.0 allows remote attackers to bypass the Same Origin Policy and modify the location.host property via an invalid data: URL.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Ubuntu_linux Canonical 12.04 12.04
Ubuntu_linux Canonical 14.04 14.04
Ubuntu_linux Canonical 15.10 15.10
Ubuntu_linux Canonical 16.04 16.04
Firefox Ubuntu devel *
Firefox Ubuntu esm-infra/xenial *
Firefox Ubuntu precise *
Firefox Ubuntu trusty *
Firefox Ubuntu upstream *
Firefox Ubuntu wily *
Firefox Ubuntu xenial *

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 software 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