Security Bulletin: Vulnerabilities in SSLv3 affect IBM Flex System Manager (FSM) and compatible IBM Systems Director agents (CVE-2014-3513, CVE-2014-3566, CVE-2014-3567, CVE-2014-3568)

Vulnerability Details

Summary

SSLv3 contains a vulnerability that has been referred to as the Padding Oracle On Downgraded Legacy Encryption (POODLE) attack and other vulnerabilities. SSLv3 is enabled in IBM FSM and compatible IBM Systems Director agents.

Vulnerability Details:

CVE-ID: CVE-2014-3513

Description: OpenSSL is vulnerable to a denial of service, caused by a memory leak in the DTLS Secure Real-time Transport Protocol (SRTP) extension parsing code. By sending multiple specially-crafted handshake messages, an attacker could exploit this vulnerability to exhaust all available memory of an SSL/TLS or DTLS server.

CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97035 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:N)

CVE-ID: CVE-2014-3566

Description: Product could allow a remote attacker to obtain sensitive information, caused by a design error when using the SSLv3 protocol. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via a POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt SSL sessions and access the plaintext of encrypted connections.

CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97013 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVE-ID: CVE-2014-3567

Description: OpenSSL is vulnerable to a denial of service, caused by a memory leak when handling failed session ticket integrity checks. By sending an overly large number of invalid session tickets, an attacker could exploit this vulnerability to exhaust all available memory of an SSL/TLS or DTLS server.

CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97036 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2014-3568

Description: OpenSSL could allow a remote attacker bypass security restrictions. When configured with "no-ssl3" as a build option, servers could accept and complete a SSL 3.0 handshake. An attacker could exploit this vulnerability to perform unauthorized actions.

CVSS Base Score: 2.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/97037 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:N/I:P/A:N)

Affected products and versions

FSM

• Flex System Manager 1.1.x.x
• Flex System Manager 1.2.0.x
• Flex System Manager 1.2.1.x
• Flex System Manager 1.3.0.x
• Flex System Manager 1.3.1.x
• Flex System Manager 1.3.2.x
• Flex System Manager 1.3.3.x
• Flex System Manager 1.3.4.x

Agents

• Agents for FSM 1.1.x.x
  • IBM Systems Director Common Agent for Windows 6.3.1
  • IBM Systems Director Common Agent for Linux 6.3.1
• Agents for FSM 1.2.x.x
  • IBM Systems Director Common Agent for Windows 6.3.2
  • IBM Systems Director Common Agent for Linux 6.3.2
• Agents for FSM 1.3.0.x
  • IBM Systems Director Common Agent for Windows 6.3.3
  • IBM Systems Director Common Agent for Linux 6.3.3
• Agents for FSM 1.3.1.x
  • IBM Flex System Common Agent for Windows 6.3.4
  • IBM Flex System Common Agent for Linux 6.3.4
• Agents for FSM 1.3.2, 1.3.3 and 1.3.4
  • IBM Flex System Common Agent for Windows 6.3.5
  • IBM Flex System Common Agent for Linux 6.3.5

Remediation/Fixes:

IBM recommends updating the Flex System Manager (FSM) and all affected Common Agent Services (CAS) endpoints using the instructions referenced in the table below.

Warning: If agents older than version 6.3.5 are not updated before the FSM iFix is installed you will permanently loose contact with that endpoint.

IBM recommends that you review your entire environment to identify areas that enable the SSLv3 protocol and take appropriate mitigation and remediation actions. The most immediate mitigation action that can be taken is disabling SSLv3.

You should verify disabling SSLv3 does not cause any compatibility issues.

Workarounds and Mitigations:

None

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References:

• Complete CVSS v2 Guide
• On-line Calculator v2

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

None

Change History
27 August 2015: Original Version Published
04 December 2015: Added v1.3.3x to the Affected Products
17 December 2015: Added version 1.3.3
21 December 2015: Updated remediation for EOS releases

* 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.