Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2014.1776
Vulnerabilities in Bash affect IBM Workload Deployer (CVE-2014-6271,
CVE-2014-7169, CVE-2014-7186, CVE-2014-7187, CVE-2014-6277, CVE-2014-6278)
7 October 2014
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Workload Deployer
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-7187 CVE-2014-7186 CVE-2014-7169
CVE-2014-6278 CVE-2014-6277 CVE-2014-6271
Reference: ASB-2014.0114
ASB-2014.0111
ESB-2014.1774
ESB-2014.1764
ESB-2014.1755
ESB-2014.1749
ESB-2014.1746
ESB-2014.1745
ESB-2014.1739
ESB-2014.1733
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21686131
- --------------------------BEGIN INCLUDED TEXT--------------------
Vulnerabilities in Bash affect IBM Workload Deployer (CVE-2014-6271,
CVE-2014-7169, CVE-2014-7186, CVE-2014-7187, CVE-2014-6277, CVE-2014-6278)
Document information
More support for:
IBM Workload Deployer
Security
Software version:
3.1, 3.1.0.1, 3.1.0.2, 3.1.0.6, 3.1.0.7
Operating system(s):
Firmware
Reference #:
1686131
Modified date:
2014-10-06
Security Bulletin
Summary
Bash is available in Red Hat Linux virtual machine images that can be deployed
by using IBM Workload Deployer. Six Bash vulnerabilities were disclosed in
September 2014. This bulletin addresses the vulnerabilities that have been
referred to as Bash Bug or Shellshock and two memory corruption
vulnerabilities. Bash is used by IBM Workload Deployer.
Vulnerability Details
CVE-ID: CVE-2014-6271
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary
commands on the system, caused by an error when evaluating specially crafted
environment variables passed to it by the Bash functionality. An attacker
could exploit this vulnerability to write to files and execute arbitrary
commands on the system.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96153 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-7169
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary
commands on the system, caused by an incomplete fix related to malformed
function definitions in the values of environment variables. An attacker could
exploit this vulnerability using attack vectors involving the ForceCommand
feature in OpenSSH sshd, and the mod_cgi and mod_cgid modules in the Apache
HTTP Server to write to files and execute arbitrary commands on the system.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96209 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-7186
DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code
on the system, caused by an out-of-bounds memory access while handling
redir_stack. An attacker could exploit this vulnerability to execute arbitrary
code on the system or cause a denial of service.
CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96237 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)
CVE-ID: CVE-2014-7187
DESCRIPTION: GNU Bash could allow a local attacker to execute arbitrary code
on the system, caused by an off-by-one error when handling deeply nested flow
control constructs. An attacker could exploit this vulnerability to execute
arbitrary code on the system or cause a denial of service.
CVSS Base Score: 4.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96238 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)
CVE-ID: CVE-2014-6277
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code
on the system, caused by an incomplete fix related to the failure to properly
parse function definitions in the values of environment variables. An attacker
could exploit this vulnerability using attack vectors involving the
ForceCommand feature in OpenSSH sshd, and the mod_cgi and mod_cgid modules in
the Apache HTTP Server to execute arbitrary code on the system or cause a
denial of service.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96686 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVE-ID: CVE-2014-6278
DESCRIPTION: GNU Bash could allow a remote attacker to execute arbitrary code
on the system, caused by an incomplete fix related to the parsing of user
scripts. An attacker could exploit this vulnerability to execute arbitrary
code on the system or cause a denial of service.
CVSS Base Score: 10.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/96687 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Affected Products and Versions
All versions of IBM Workload Deployer 3.1 and later fix packs
Remediation/Fixes
The solution is to apply the fixes with the following direction:
Upgrade the deployed virtual machines by using one of the following two
methods:
Option 1: Update the virtual machine by using an eFix provided by IBM:
Download the eFix from IBM Fix Central (see the following link):
http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/IBM+Workload+Deployer&release=All&platform=All&function=fixId&fixids=HV_RHEL6_X64_PATCHES_EFIX&includeSupersedes=0
Import the eFix into the IBM Workload Deployer Emergency Fix catalog.
For deployed instances, apply this Emergency Fix on the virtual machine. Bash
is upgraded to version bash-4.1.2-15.e16_5.2.
Option 2: Upgrade the virtual machine with fixes obtained from Red Hat
Contact Red Hat to obtain fixes and install these fixes directly on the
deployed virtual machines as needed.
For images, you must extend and capture the image by using the following
general procedure:
Import the eFix into the IBM Workload Deployer Emergency Fix catalog.
- From the image catalog, select the image and click "Extend."
After the image extend operation completes succcessfully, click Service from
the deployed virtual machine.
Apply this emergency fix.
- From the image catalog, capture the image.
Use this newly captured image for future deployment.
Workarounds and Mitigations
None known
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Subscribe to Security Bulletins
Acknowledgement
None
Change History
03 October 2014 Original Version 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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=sreV
-----END PGP SIGNATURE-----