Security Bulletin
Summary
There are multiple vulnerabilities in IBM SDK Java Technology Edition, Version 6 that is used by WebSphere Application Server shipped with IBM SmartCloud Provisioning. These issues were disclosed as part of the IBM Java SDK updates in July 2015.
This bulletin also addresses the Logjam Attack on TLS connections using the Diffie-Hellman (DH) key exchange protocol affects.
Vulnerability Details
CVEID: CVE-2015-4000
DESCRIPTION: The TLS protocol could allow a remote attacker to obtain sensitive information, caused by the failure to properly convey a DHE_EXPORT ciphersuite choice. An attacker could exploit this vulnerability using man-in-the-middle techniques to force a downgrade to 512-bit export-grade cipher. Successful exploitation could allow an attacker to recover the session key as well as modify the contents of the traffic. This vulnerability is commonly referred to as "Logjam".
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/103294 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVEID: CVE-2015-2613
DESCRIPTION: An unspecified vulnerability and Java SE Embedded related to the JCE component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104734 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVEID: CVE-2015-2601
DESCRIPTION: An unspecified vulnerability related to the JCE component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104733 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)
CVEID: CVE-2015-4749
DESCRIPTION: An unspecified vulnerability related to the JNDI component could allow a remote attacker to cause a denial of service.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104740 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-2625
DESCRIPTION: An unspecified vulnerability related to the JSSE component could allow a remote attacker to obtain sensitive information.
CVSS Base Score: 2.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104743 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:P/I:N/A:N)
CVEID: CVE-2015-1931
DESCRIPTION: IBM Java Security Components store plain text data in memory dumps, which could allow a local attacker to obtain information to aid in further attacks against the system.
CVSS Base Score: 2.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/102967 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Affected Products and Versions
|
Principal Product | Affected Supporting Product Version |
| IBM SmartCloud Provisioning V2.1,V 2.1.0.1, V2.1.0.2, V2.1.0.3, V2.1.0.5, V2.1.0.5 from Interim Fix 1 to Interim Fix3 | IBM WebSphere Application Server V8.0 |
| IBM SmartCloud Provisioning V2.3, V2.3.0.1 and V2.3.0.1 from Interim Fix 1 to Interim Fix 7 | IBM WebSphere Application Server V8.0.0.1 thorugh V8.0.1.11 |
Remediation/Fixes
Please note that product software support discontinuance is approaching as per IBM Withdrawal Announcement 916-016.
| Product | Affected Supporting Product Version | Remediation/First Fix |
| IBM SmartCloud Provisioning V2.1,V 2.1.0.1, V2.1.0.2, V2.1.0.3, V2.1.0.5, V2.1.0.5 from Interim Fix 1 to Interim Fix3 | IBM WebSphere Application Server V8.0 | Contact IBM support |
| IBM SmartCloud Provisioning V2.3, V2.3.0.1 and V2.3.0.1 from Interim Fix 1 to Interim Fix 7 | IBM WebSphere Application Server V8.0.0.1 thorugh V8.0.1.11 | Upgrade to Cloud Orchestrator 2.3.0.1 Interim Fix 8 or later, at http://www-01.ibm.com/support/docview.wss?uid=swg2C4000036 Note as for logjam, you will also need to update your java.security file to add jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize <768. Contact IBM support for questions. |
You should verify applying this configuration change does not cause any compatibility issues. If you change the default setting after applying the fix, you will expose yourself to the attack described above. IBM recommends that you review your entire environment to identaify other areas where you have enabled the Diffie-Hellman key-exchange protocol used in TLS and take appropriate mitigation and remediation actions.
Workarounds and Mitigations
None.
Get Notified about Future Security Bulletins
References
Security Bulletin IBM WebSphere Application Server (CVE-2015-4000)
Acknowledgement
CVE-2015-4000 was reported to IBM by The WeakDH team at https://weakdh.org
Change History
* June 17 2016: updated References
* May 20 2016: added notice IBM Withdrawal Announcement 916-016
* 29 February 2016: 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Internal Use Only
CVE-IDs: CVE-2015-4000, CVE-2015-2613, CVE-2015-2601, CVE-2015-4749, CVE-2015-4729, CVE-2015-2625, CVE-2015-1931
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Document Information
Modified date:
17 June 2018
UID
swg2C1000045