CVE Vulnerabilities

CVE-2016-4383

Improper Access Control

Published: Jun 27, 2017 | Modified: Jul 06, 2017
CVSS 3.x
8.4
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
CVSS 2.x
8.5 HIGH
AV:N/AC:M/Au:S/C:C/I:C/A:C
RedHat/V2
RedHat/V3
5.7 MODERATE
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Ubuntu
MEDIUM

The glance-manage db in all versions of HPE Helion Openstack Glance allows deleted image ids to be reassigned, which allows remote authenticated users to cause other users to boot into a modified image without notification of the change.

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
Helion_openstack_glance Hp - (including) - (including)
Glance Ubuntu devel *
Glance Ubuntu esm-infra/xenial *
Glance Ubuntu trusty *
Glance Ubuntu xenial *
Glance Ubuntu yakkety *
Glance Ubuntu zesty *

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