ESA-2016-157: EMC ScaleIO Multiple Vulnerabilities

[EMC Product Security Response Center <Security_Alert@xxxxxxx>]

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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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