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Security Bulletin: A Security Vulnerability could affect IBM® Cloud Private (CVE-2018-1841)

Security Bulletin


IBM Cloud Private could allow a local user to obtain the CA Private Key due to it being world readable in boot/master node.

Vulnerability Details

CVEID: CVE-2018-1841
DESCRIPTION: IBM Cloud private could allow a local user to obtain the CA Private Key due to it being world readable in boot/master node.
CVSS Base Score: 6.2
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

IBM Cloud Private 2.1.0


For IBM Cloud Private 2.1.0.x releases, upgrade to versions 3.1.0 or higher

Workarounds and Mitigations

File Systems permissions may be set using chmod

  • to 0700 for all directories under /etc/cfc
  • to 0600 for all files under etc/cfc

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Change History

13 November 2018 - original document published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSBS6K","label":"IBM Cloud Private"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.1.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
13 November 2018