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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2966 Multiple vulnerabilities in IBM Java SDK affect IBM OS Images for Red Hat Linux Systems, AIX, and Windows 27 November 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM OS Images for Red Hat Linux Systems IBM OS Images for AIX IBM OS Images for Windows Publisher: IBM Operating System: AIX Linux variants Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-4000 CVE-2015-2625 CVE-2015-2613 CVE-2015-2601 CVE-2015-1931 Reference: ASB-2015.0103 ASB-2015.0070 ESB-2015.2851 ESB-2015.2836 ESB-2015.2821 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21971900 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect IBM OS Images for Red Hat Linux Systems, AIX, and Windows. (CVE-2015-4000, CVE-2015-2613, CVE-2015-2601, CVE-2015-2625, and CVE-2015-1931) Security Bulletin Document information More support for: PureApplication System Software version: 2.0, 2.0.0.1, 2.1.0.0, 2.1.0.1, 2.1.0.2, 2.1.1.0 Operating system(s): AIX, Linux, Windows Reference #: 1971900 Modified date: 2015-11-25 Summary There are multiple vulnerabilities in IBM SDK Java Technology Edition, Version 6 and 7, that is used by IBM OS Images for Red Hat Linux Systems, AIX, and Windows. 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 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-2015-2625 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 http://xforce.iss.net/xforce/xfdb/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 IBM OS Image for Red Hat Linux Systems 3.0.0.0 and earlier. IBM OS Image for AIX Systems 2.1.1.0 and earlier. Remediation/Fixes Virtual machines deployed from IBM PureApplication Systems are affected. This includes RedHat Linux, AIX-based, and Windows-based deployments. The solution is to apply the following IBM PureApplication System fix to the deployed virtual machines. Java Update for Windows http://www-933.ibm.com/support/fixcentral/swg/downloadFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=All&platform=All&function=fixId&fixids=Java_Update_Windows_CVE-2015-2590&includeRequisites=1&includeSupersedes=0 Java Update for Linux http://www-933.ibm.com/support/fixcentral/swg/downloadFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=All&platform=All&function=fixId&fixids=Java_Update_Linux_CVE-2015-2590&includeRequisites=1&includeSupersedes=0 Java Update for AIX http://www-933.ibm.com/support/fixcentral/swg/downloadFixes?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=All&platform=All&function=fixId&fixids=Java_Update_AIX_CVE-2015-2590&includeRequisites=1&includeSupersedes=0 1. Import the fix into the Emergency Fix catalogue. 2. For deployed instances, apply this emergency fix on the VM. 3. Restart the deployed instance after the fix is applied. 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 identify 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 Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v2 Guide On-line Calculator v2 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement CVE-2015-4000 was reported to IBM by The WeakDH team at https://weakdh.org Change History 24 November 2015: Original Version 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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