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AUSCERT External Security Bulletin Redistribution
Security Bulletin: Flex System Chassis Management Module (CMM) is affected
by vulnerabilities in OpenSSL (CVE-2014-0160 and CVE-2014-0076)
23 April 2014
AusCERT Security Bulletin Summary
Product: IBM Flex System Chassis Management Module
IBM Flex System Enterprise Chassis
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2014-0160 CVE-2014-0076
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Security Bulletin: Flex System Chassis Management Module (CMM) is affected by
vulnerabilities in OpenSSL (CVE-2014-0160 and CVE-2014-0076)
Security vulnerabilities have been discovered in OpenSSL.
CVE ID: CVE-2014-0160
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. It can be exploited on any system (ie. server,
client, agent) receiving connections using the vulnerable OpenSSL library.
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.
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.
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
Flex System Chassis Management Module, Option part number 68Y7029
Flex System Enterprise Chassis, Types 7893, 8721, 8724
Chassis Management Module (CMM) Affected Firmware Versions:
IBM recommends updating to Chassis Management Module version 1.50.1 (2PET12I).
After applying the fix, additional instructions are needed for CVE-2014-0160
1. Replace your SSL Certificates.
You need to revoke existing SSL certificates and reissue new certificates.
You need to be sure not to generate the new certificates using the old private
key and create a new private key (ie using "openssl genrsa") and use that new
private key to create the new certificate signing request (CSR).
2. Reset User Credentials
Users of network facing applications protected by a vulnerable version of
OpenSSL should be forced to reset their passwords and should revoke any
authentication or session related cookies set prior to the time OpenSSL was
upgraded and force the user to re-authenticate.
Warning: Your Flex Systems chassis and other 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 chassis/environment.
Regenerating the certificate authority on the CMM will automatically cause the
private keys and certificates in use by the CMM as well as all IMM2 and FSP
management devices in the chassis to automatically regenerate. For each
chassis, the certificate authority (CA) may be regenerated using the web
interface or the CLI. The interfaces for generating a new CA are the same as
those described for downloading a CA on this page:
Changing the certificates will cause the CMM, IMM2, and FSP to become
untrusted by any entity that was relying on the certificates to establish
trust, including the IBM Flex System Manager (if you have one in your
environment). This can be remedied by using the instructions at the link above
to download the CA certificate then importing it into your web browser trust
store and the certificate trust store for any other entity needing to trust
the chassis. If you have a Flex Systems Manager in your environment, follow
these instructions to import the new CMM CA certificate into your FSM:
1. In the left navigation area of the Flex System Manager management software
interface, under Ã¢Â€ÂœSecurity,Ã¢Â€Â select Ã¢Â€ÂœCertificate Trust Store.Ã¢Â€Â
2. Click the Ã¢Â€ÂœImportÃ¢Â€Â button.
3. Click the Ã¢Â€ÂœBrowseÃ¢Â€Â button. Browse to the file location of the CMM CA
certificate to import and open it.
4. Enter a value of your choice for the display name (e.g., identifying
information about the chassis), and click Ã¢Â€ÂœOK.Ã¢Â€Â
See the following links for information about changing passwords at the CMM if
the chassis is not centrally managed by an IBM Flex System Manager:
* Web interface: http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.ibm.acc.cmm.doc/cmm_ug_webinterfacepagesandroles.html
* Command line interface: http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.ibm.acc.cmm.doc/cli_command_users.html
Workaround(s) & Mitigation(s):
Complete CVSS Guide
On-line Calculator V2
OpenSSL Project vulnerability website
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
18 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 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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