IBM Storwize V7000 Unified includes a flaw in the handling of special files created by an NFS client resulting in a vulnerability reported against IBM Storwize V7000 Unified.
CVE ID: CVE-2013-0500
A flaw in the IBM Storwize V7000 Unified code for handling special files (in particular character and block devices) results in a serious vulnerability when an NFS client stores such files on IBM Storwize V7000U Unified and the same files are accessed via other NAS protocols such as CIFS, HTTPS, SCP and SFTP.
This vulnerability issue may enable an authenticated NAS user to exploit the following security exposures:
- Crash of GPFS after execution of certain GPFS system calls on such a special file,
- Read, write and manipulate Storwize V7000 Unified configuration and program code,
- Read, write and manipulate user data.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/84839 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:M/C:P/I:P/A:P)
- Affected releases: IBM Storwize V7000 Unified 18.104.22.168 through 22.214.171.124
- Releases/systems/configurations NOT affected: IBM Storwize V7000 Unified 126.96.36.199 and above.
The issue was fixed beginning with version IBM Storwize V7000 Unified 188.8.131.52. IBM Storwize V7000 Unified customers running an earlier IBM Storwize V7000 Unified version must upgrade to IBM Storwize V7000 Unified 184.108.40.206 or a later version.
IBM Storwize V7000 Unified NAS exports which are exported for NFS and at least one additional NAS protocol such as CIFS, HTTPS, SCP or SFTP should be configured with the NFS option ‘no_root_squash’ to disallow the creation of such special files by an NFS client.
- 10/15/2013: Original copy 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 Flash.
Note: 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.
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25 September 2022