CVE Vulnerabilities

CVE-2017-12191

Improper Access Control

Published: Feb 28, 2018 | Modified: Nov 21, 2024
CVSS 3.x
7.4
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
7.4 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Ubuntu
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A flaw was found in the CloudForms account configuration when using VMware. By default, a shared account is used that has privileged access to VMRC (VMWare Remote Console) functions that may not be appropriate for users of CloudForms (and thus this account). An attacker could use this vulnerability to view and make changes to settings in the VMRC and virtual machines controlled by it that they should not have access to.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
CloudformsRedhat4.5 (including)4.5 (including)
CloudForms Management Engine 5.8RedHatansible-0:2.4.3.0-1.el7ae*
CloudForms Management Engine 5.8RedHatansible-tower-0:3.1.5-3.el7at*
CloudForms Management Engine 5.8RedHatcfme-0:5.8.3.4-1.el7cf*
CloudForms Management Engine 5.8RedHatcfme-appliance-0:5.8.3.4-1.el7cf*
CloudForms Management Engine 5.8RedHatcfme-gemset-0:5.8.3.4-1.el7cf*
CloudForms Management Engine 5.8RedHatpostgresql94-0:9.4.15-3PGDG.el7at*
CloudForms Management Engine 5.8RedHatpython-crypto-0:2.6.1-16.el7at*
CloudForms Management Engine 5.8RedHatpython-jmespath-0:0.9.0-4.el7ae*
CloudForms Management Engine 5.8RedHatpython-paramiko-0:2.1.1-2.el7ae*

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