Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

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


        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: 

- --------------------------BEGIN INCLUDED TEXT--------------------

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

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

Security Bulletin


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


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

Workarounds and Mitigations


Change History

23 July 2019 - Original version published

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
Comment: http://www.auscert.org.au/render.html?it=1967