Security Bulletin: GPFS V3.5 for Windows is affected by vulnerabilities in OpenSSL (CVE-2014-0160 and CVE-2014-0076)

Security Bulletin


Summary

Security vulnerabilities have been discovered in OpenSSL.

Vulnerability Details

CVE-ID: CVE-2014-0160

DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the TLS/DTLS heartbeat functionality. An attacker could exploit this vulnerability to expose 64k of private memory and retrieve secret keys. An attacker can repeatedly expose additional 64k chunks of memory. This vulnerability can be remotely exploited, authentication is not required and the exploit is not complex. An exploit can only partially affect the confidentially, but not integrity or availability.


CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92322
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

Warning: We strongly encourage you to take action as soon as possible as potential implications to your environment may be more serious than indicated by the CVSS score.


CVE-ID: CVE-2014-0076


DESCRIPTION: OpenSSL could allow a local attacker to obtain sensitive information, caused by an implementation error in ECDSA (Elliptic Curve Digital Signature Algorithm). An attacker could exploit this vulnerability using the FLUSH+RELOAD cache side-channel attack to recover ECDSA nonces. This vulnerability can only be exploited locally, authentication is not required and the exploit is not complex. An exploit can only partially affect confidentially, but not integrity or availability.


CVSS Base Score: 2.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91990
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

GPFS for Windows V3.5

Remediation/Fixes

GPFS for Windows V3.4

This version of GPFS uses OpenSSH 0.9.8y which is not affected by this vulnerability.

GPFS for Windows V3.5

If using GPFS on Windows V3.5.0.1, please upgrade to the latest 3.5 PTF level immediately.

For GPFS on Windows V3.5.0.11 or later, the OpenSSL libraries which are linked in OpenSSH for GPFS on Windows, have been upgraded to 1.0.1g. This updated OpenSSH for GPFS on Windows package is available for download from FixCentral http://www-933.ibm.com/support/fixcentral/ :


    1. Download the GPFS 3.5.0.17 update package into any directory on your system.

    2. Extract the contents of the ZIP archive so that the .msi file it includes is directly accessible to your system.
    3. Follow the instructions in the README included in the update package in order to install the OpenSSH msi package.

If GPFS multiclustering is configured on Windows nodes, upgrade any OpenSSL package that may have been installed. If using OpenSSL from Shining Light Productions (https://slproweb.com/products/Win32OpenSSL.html), get the latest version of OpenSSL 1.0.1g which is available on their website.


Actions that should be taken:

1.The following can be done on a small group of nodes at each time (ensuring that quorum is maintained) to maintain file system availability:

    a. Stop GPFS on the node
    b. Install the version of OpenSSL which contains the fix
    c. Restart GPFS on the node

2. Additional instructions are needed for CVE-2014-0160. The following should be done only when all nodes, across the multiple clusters, are running with at OpenSSL 1.0.1g level (i.e., when the above steps are completed):
    a. Change the security keys used for secure communications. Refer to the Advanced Administration Guide, Chapter 1: Accessing GPFS file systems from other GPFS clusters", "Changing security keys" section . The steps should be taken up to, and including the procedure to ensure that the old key is no longer accepted

    b. If SSH is used to execute remote GPFS commands, then the SSH host keys must also be changed

    c. If SSH is used to execute remote GPFS commands, then SSH user keys/passwords must also be changed.

Warning: Your environment may require additional fixes for other products, including non-IBM products. Please replace the SSL certificates and reset the user credentials after applying the necessary fixes to your environment.

Workarounds and Mitigations

None known

References

Related information

Acknowledgement

None

Change History

12 April 2014: 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 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.

*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.

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Document information


More support for:

General Parallel File System

Software version:

3.5.0

Operating system(s):

Windows

Reference #:

T1020683

Modified date:

2014-04-13

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