CVE Vulnerabilities

CVE-2014-8632

Improper Access Control

Published: Dec 11, 2014 | Modified: Dec 22, 2016
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
4.3 MODERATE
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu
MEDIUM

The structured-clone implementation in Mozilla Firefox before 34.0 and SeaMonkey before 2.31 does not properly interact with XrayWrapper property filtering, which allows remote attackers to bypass intended DOM object restrictions by leveraging property availability after XrayWrapper removal.

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
Firefox Mozilla * 33.0 (including)
Seamonkey Mozilla * 2.30 (including)
Firefox Ubuntu devel *
Firefox Ubuntu lucid *
Firefox Ubuntu precise *
Firefox Ubuntu trusty *
Firefox Ubuntu utopic *
Thunderbird Ubuntu lucid *

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