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AUSCERT External Security Bulletin Redistribution
ESB-2017.0052
ESA-2016-157: EMC ScaleIO Multiple Vulnerabilities
6 January 2017
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AusCERT Security Bulletin Summary
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Product: EMC ScaleIO
Publisher: EMC
Operating System: Network Appliance
Impact/Access: Root Compromise -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-9869 CVE-2016-9868 CVE-2016-9867
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ESA-2016-157: EMC ScaleIO Multiple Vulnerabilities
EMC Identifier: ESA-2016-157
CVE Identifier: CVE-2016-9867, CVE-2016-9868, CVE-2016-9869
Severity Rating: CVSS v3Base Score: See below for individual scores
Affected products:
EMC ScaleIO versions before 2.0.1.1
Summary:
EMC ScaleIO version 2.0.1.1 contains fixes for multiple security
vulnerabilities that could potentially be exploited by malicious users to
compromise the affected system.
Details:
EMC ScaleIO versions before 2.0.1.1 could be vulnerable to the following
vulnerabilities:
Privilege escalation vulnerability (CVE-2016-9867)
A low-privileged local attacker may be able to modify the kernel memory
in the SCINI driver and may achieve code execution to escalate privileges
to root on ScaleIO Data Client (SDC) servers.
CVSSv3: 7.8 (AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
Denial-of-service vulnerability via IOCTL calls (CVE-2016-9868)
A low-privileged local attacker may cause a denial-of-service by generating
a kernel panic in the SCINI driver using IOCTL calls which may render the
ScaleIO Data Client (SDC) server unavailable until the next reboot.
CVSSv3: 4.7 (AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Denial-of-service through configuration API (CVE-2016-9869)
Incorrect permissions on the SCINI driver may allow a low-privileged local
attacker to modify the configuration and render the ScaleIO Data Client
(SDC) server unavailable.
CVSSv3: 4.7 (AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Resolution:
The following EMC ScaleIO release contains resolutions to these
vulnerabilities:
EMC ScaleIO version 2.0.1.1
EMC recommends all customers upgrade at the earliest opportunity. For
those that are unable to upgrade we recommend customers to change the
access permission to 600 as follows:
For each SDC, please execute the following SHELL command:
chmod 600 /dev/scini
Notes:
1. This should be executed "as-is" (do not add anything else to
the command).
2. This command should be executed after every reload of the SDC or
after reboot
3. Once upgraded to 2.0.1.1. it is all set and no need to use this
workaround.
Link to remedies:
Customers can download software from
https://support.emc.com/products/33925_ScaleIO
For those customers who are on versions prior to EMC ScaleIO 1.32.6 please
contact ScaleIO Customer Support.
Credit:
EMC would like to thank David BERARD, from the Ubisoft Security & Risk
Management team, for reporting these vulnerabilities.
[The following is standard text included in all security advisories.
Please do not change or delete.]
Read and use the information in this EMC Security Advisory to assist
in avoiding any situation that might arise from the problems described
herein. If you have any questions regarding this product alert, contact
EMC Software Technical Support at 1-877-534-2867.
For an explanation of Severity Ratings, refer to EMC Knowledgebase solution
emc218831. EMC recommends all customers take into account both the base
score and any relevant temporal and environmental scores which may impact
the potential severity associated with particular security vulnerability.
EMC recommends that all users determine the applicability of this information
to their individual situations and take appropriate action. The information
set forth herein is provided "as is" without warranty of any kind. EMC
disclaims all warranties, either express or implied, including the
warranties of merchantability, fitness for a particular purpose, title and
non-infringement. In no event, shall EMC or its suppliers, be liable for any
damages whatsoever including direct, indirect, incidental, consequential,
loss of business profits or special damages, even if EMC or its suppliers
have been advised of the possibility of such damages. Some states do
not allow the exclusion or limitation of liability for consequential or
incidental damages, so the foregoing limitation may not apply.
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