Security Bulletin
Summary
IBM Cloud Private is affected by a security vulnerability in Kubernetes which in some cases can allow unauthorized access to the Kubernetes API Server and/or trusted user privilege escalation.
Vulnerability Details
CVEID: CVE-2018-1002105
DESCRIPTION: Kubernetes could allow a remote attacker to gain elevated privileges on the system, caused by the improper handling of requests in the API server. By sending a specially crafted proxy request directly to the backend, a remote attacker could exploit this vulnerability to establish a connection to create brokered services and deploy malicious code with elevated privileges.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/153638 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM Cloud Private 3.1.1
IBM Cloud Private 3.1.0
IBM Cloud Private 2.1.0.3
IBM Cloud Private 2.1.0.2
Remediation/Fixes
Users should apply the patch appropriate to the IBM Cloud Private Version to upgrade Kubernetes
IBM Cloud Private 3.1.1 patch - Available in Fix Central
IBM Cloud Private 3.1.0 patch - Available in Fix Central
IBM Cloud Private 2.1.0.3 patch - Available in Fix Central
IBM Cloud Private 2.1.0.2 patch - Available in Fix Central
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
07 December 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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
07 December 2018
UID
ibm10744263