ESB-2017.1806 - [Win][Linux][IBM i][HP-UX][Solaris][AIX] IBM WebSphere Application Server: Access confidential data - Existing account 2017-07-24

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1806
         Security Bulletin: WebSphere Application Server may have
                 insecure file permissions (CVE-2017-1382)
                               24 July 2017

===========================================================================

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

Product:           IBM WebSphere Application Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
Impact/Access:     Access Confidential Data -- Existing Account
                   Reduced Security         -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1382  

Original Bulletin: 
   http://www.ibm.com/support/docview.wss?uid=swg22004785

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

Security Bulletin: WebSphere Application Server may have insecure file
permissions (CVE-2017-1382)

Security Bulletin

Document information

More support for:

WebSphere Application Server

Software version:

7.0, 8.0, 8.5, 9.0

Operating system(s):

AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition:

Base, Developer, Enterprise, Network Deployment

Reference #:

2004785

Modified date:

20 July 2017

Summary

WebSphere Application Server may have insecure file permissions after custom
startup scripts are run. The custom startup script will not pull the umask
from the server.xml. This may cause some log files to have different
permissions then expected.

Vulnerability Details

CVEID:

CVE-2017-1382

DESCRIPTION:

IBM WebSphere Application Server might create files using the default
permissions instead of the customized permissions when custom startup scripts
are used. A local attacker could exploit this to gain access to files with an
unknown impact.

CVSS Base Score: 5.1

CVSS Temporal Score: See

https://exchange.xforce.ibmcloud.com/vulnerabilities/127153

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:N)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM
WebSphere Application Server:

Version 9.0

Version 8.5

Version 8.0

Version 7.0

Remediation/Fixes

If you have a

umask

defined in your server.xml and you use custom startup scripts, you should
verify that your log files have the correct permsissions that you expect. You
will need to manually change these files permissions if they are not as
expected. The interim fix below will only prevent this from happening in the
future. It will not change your current log file permissions.


For traditional WebSphere Application Server and WebSphere Application
Server Hypervisor Edition:

For V9.0.0.0 through 9.0.0.4:
. Upgrade to minimal fix pack levels as required by interim fix and then
apply Interim Fix PI79343

- --OR--
. Apply Fix Pack 9.0.0.5 or later (targeted availability 29 September 2017).

For V8.5.0.0 through 8.5.5.11 Full Profile:
. Upgrade to minimal fix pack levels as required by interim fix and then
apply Interim Fix PI79343
- --OR--
. Apply Fix Pack 8.5.5.12 or later (targeted availability 21 July 2017).

For V8.0.0.0 through 8.0.0.13:
. Upgrade to a minimal fix pack levels as required by interim fix and then
apply Interim Fix PI79343

- --OR--
. Apply Fix Pack 8.0.0.14 or later (targeted availability 16 October 2017).
For V7.0.0.0 through 7.0.0.43:
. Upgrade to a minimal fix pack levels as required by interim fix and then
apply Interim Fix PI79343

- --OR--
. Apply Fix Pack 7.0.0.45 or later (targeted availability 2Q 2018).


Important note

IBM strongly suggests that all System z customers be subscribed to the System
z Security Portal to receive the latest critical System z security and
integrity service. If you are not subscribed, see the instructions on the
System z Security web site . Security and integrity APARs and associated
fixes will be posted to this portal. IBM suggests reviewing the CVSS scores
and applying all security or integrity fixes as soon as possible to minimize
any potential risk.

References

Complete CVSS v3 Guide

On-line Calculator v3



Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog



Change History

20 July 2017: 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

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.

- --------------------------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:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=ZGls
-----END PGP SIGNATURE-----

« Back to bulletins