Security Bulletin: System x Integrated Management Module 2 (IMM2) is affected by vulnerabilities in OpenSSL (CVE-2014-0160 and CVE-2014-0076)

Vulnerability Details

Abstract

Security vulnerabilities have been discovered in OpenSSL.

Content

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..
CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92322 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/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)

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 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.

Following are specific instructions regarding how to perform the above actions on IMM2.

Certificate Replacement

1. Login to the IMM2 web
2. From the menu select IMM Management --> Security
3. On the IMM Security web page click on the HTTPS Server tab.
   • If you want a self-signed certificate, click the action item to Generate a New Key and a Self-signed Certificate
   1. Fill in the SSL Certificate data and press OK
   • If you want to use a CA signed certificate, click the action item to Generate a New Key and a Certificate Signing Request (CSR)
   1. Fill in the SSL Certificate data and press OK
   2. Click the action item to Download Certificate Signing Request (CSR)
   3. Take the CSR to your CA to generate a signed certificate
   4. On the IMM2 web click the action to Import a Signed Certificate.
4. On the IMM Security web page click on the CIM Over HTTPS Server tab.
   • If you want a self-signed certificate, click the action item to Generate a New Key and a Self-signed Certificate
   1. Fill in the SSL Certificate data and press OK
   • If you want to use a CA signed certificate, click the action item to Generate a New Key and a Certificate Signing Request (CSR)
   1. Fill in the SSL Certificate data and press OK
   2. Click the action item to Download Certificate Signing Request (CSR)
   3. Take the CSR to your CA to generate a signed certificate
   4. On the IMM2 web click the action to Import a Signed Certificate.
5. On the IMM Security web page click on the LDAP Client tab
   • If you want a self-signed certificate, click the action item to Generate a New Key and a Self-signed Certificate
   1. Fill in the SSL Certificate data and press OK
   • If you want to use a CA signed certificate, click the action item to Generate a New Key and a Certificate Signing Request (CSR)
   1. Fill in the SSL Certificate data and press OK
   2. Click the action item to Download Certificate Signing Request (CSR)
   3. Take the CSR to your CA to generate a signed certificate
   4. On the IMM2 web click the action to Import a Signed Certificate.
   • If you want to remove or place the trusted certificates
   1. Click the Replace or the Remove link along side the trusted certificate
   2. If replacing, you will be prompted to select a certificate to be imported.
   3. If removing a certificate, you will be asked to confirm the removal.
   4. Repeat this process for all trusted certificates that you want to remove or replace.

Reset User Credentials

1. Login to the IMM2 web
2. From the menu select IMM Management --> Users
3. On the User Accounts web page click on the link in the User Name column.
4. On the User Credentials tab of the pop-up that appears, type a new password in the Password and Confirm password fields and press OK.
5. Repeat the above steps for each user in the User Name column on the User Accounts web page.

Workaround(s) & Mitigation(s):

None known

References:

• Complete CVSS Guide
• On-line Calculator V2
• OpenSSL Project vulnerability website
• Heartbleed

Related Information:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement
None

Change History
17 April 2014: Original Copy Published
18 April 2014: Updated to include additional affected systems and fixes

* 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.