Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2208 Security Bulletin: Multiple vulnerabilities in IBM Java SDK including Logjam affect IBM OS Images for Red Hat Linux Systems, AIX-based, and Windows-based deployments 24 August 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Java SDK Publisher: IBM Operating System: AIX Linux variants Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated 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-2015-2590 CVE-2015-1931 Reference: ASB-2015.0070 ESB-2015.1453.2 ESB-2015.1452 ESB-2015.1445 ESB-2015.1443 ESB-2015.1432 ESB-2015.1425 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21964981 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin:Multiple vulnerabilities in IBM Java SDK including Logjam affect IBM OS Images for Red Hat Linux Systems, AIX-based, and Windows-based deployments. (CVE-2015-2590, CVE-2015-2613, CVE-2015-2601, CVE-2015-2625, CVE-2015-1931, and CVE-201 Security Bulletin Document information More support for: PureApplication System Security Software version: 2.1.0.0, 2.1.0.1, 2.1.0.2 Operating system(s): AIX, Linux, Windows Reference #: 1964981 Modified date: 2015-08-21 Summary There are multiple vulnerabilities in IBM SDK Java Technology Edition used by IBM OS Images for Red Hat Linux Systems, AIX-based, and Windows-based deployments. 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-2015-2590 DESCRIPTION: An unspecified vulnerability related to the Libraries component has complete confidentiality impact, complete integrity impact, and complete availability impact. CVSS Base Score: 10 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104724 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C) 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) 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) 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. http://www.ibm.com/support/fixcentral/swg/quickorder?parent=PureSystems&product=ibm/WebSphere/PureApplication+System&release=2.0.0.1&platform=All&function=fixId&fixids=Java_Update_AIX_CVE-2015-2590,Java_Update_Windows_CVE-2015-2590,Java_Update_Linux_CVE-2015-2590&includeSupersedes=0&source=fc 1. Import the fix into the Emergency Fix catalogue. 2. For deployed instances, apply this emergency fix on the Virtual Instance. 3. Restart the deployed instance after the fix is applied. As the length of the server key size is increased, the amount of CPU required for full TLS/SSL handshake can significantly increase. Please carefully test and assess the impact to your CPU requirements to ensure sufficient CPU resources, otherwise the system availability may be impacted. 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 21 August 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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVdqWg36ZAP0PgtI9AQIFmg/8CEpNVcMTZi6IlCw6Q+ng4emDD1b19cvs 94YM79bCuAQp1yUqYbYkM/lMWGe+EjV6Xy0/I9mM+8U43IlszCooqQBfk/vHcEHY vmv0fYR4rBRcwck1xtjkHJkWBKjquW95cFo9H18ovDyWl6P/pKzVIkYWWKIYdh8+ LIz/FTFPVZ+5THpJKR4t/jBjfqlmXDp9+Uvr+Q5Vn4B/S8phi+JFgTuFyvGX0NXc qeqwmztPswCs/r9UZOYrhG7yGXWWiIJXln7HUzkK3NvmptgYWHDRLqfnuyAO4HKV JdO2W5GCPeikkudaEb0bILUJOTo/gk8Thlq/3KNYemEwGmiAYmcc8GYuPDNWiSEt MhGYpWIXNRbRspaU3/wVPiIqPIxGAg2kpj90cXJXP6Vkcg9Ay9mHXyHy1Ysyl3Xh w4KXAYWSQv90JrUA/W4rCENOIJEk37mhw5CuzTtvNGQM4Xjs45CoN7AAmp0dWVVS TE13ziUamhXSgysOKM2CeK2DmFBDgd1rZko1GqR4v7bWEzAHWx1Q8ynF/UlcWDTm NGaZmHwbc9xlnH/FXqdygcI+SaQ71gd0UGYFvO7omfttroCaXKDvRsDEHDvyie0c kmnMVuLngm+v3j0ZEKZMDhH6rtilL8PnvP1BXEyagaqeyM03wH7AYZV8ufAvHMx/ IctKCR2Z+bs= =4tEC -----END PGP SIGNATURE-----