IBM Cloud Private: Unauthorised Access -- Existing Account

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.2767
   IBM Cloud Private - Session not invalidated on logout (CVE-2019-4439)
                               25 July 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Cloud Private
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Unauthorised Access -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-4439  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=ibm10884892

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IBM Cloud Private - Session not invalidated on logout (CVE-2019-4439)

Product:             IBM Cloud Private
Operating system(s): Linux
Reference #:         0884892

Security Bulletin

Summary

IBM Cloud Private - Session not invalidated on logout (CVE-2019-4439)

Vulnerability Details

CVEID: CVE-2019-4439
DESCRIPTION: IBM Cloud private does not invalidate session after logout which
could allow a local user to impersonate another user on the system.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
162949 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

IBM Cloud Private 3.1.0, 3.1.1, 3.1.2

Remediation/Fixes

Product defect fixes and security updates are only available for the two most
recent Continuous Delivery (CD) update packages

  o IBM Cloud Private 3.1.2
  o IBM Cloud Private 3.1.1

For IBM Cloud Private 3.1.2, apply patch:

  o auth-idp

For IBM Cloud Private 3.1.1, apply patch:

  o auth-idp

For IBM Cloud Private, 3.1.0:

  o Upgrade to the latest Continuous Delivery (CD) update package, IBM Cloud
    Private 3.2.
  o If required, individual product fixes can be made available between CD
    update packages for resolution of problems. Contact IBM support for
    assistance

Workarounds and Mitigations

None

Change History

23 July 2019 - Original version published

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