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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2555 Multiple Vulnerabilities in IBM(R) Java SDK affects WebSphere Application Server July 2018 CPU 29 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM WebSphere Application Server Publisher: IBM Operating System: AIX HP-UX Solaris IBM i Linux variants Windows z/OS Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Modify Arbitrary Files -- Remote with User Interaction Create Arbitrary Files -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-12539 CVE-2018-1656 Reference: ESB-2018.2529.2 ESB-2018.2528.2 Original Bulletin: https://www.ibm.com/support/docview.wss?uid=ibm10729349 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Multiple Vulnerabilities in IBM(R) Java SDK affects WebSphere Application Server July 2018 CPU Software version: All Versions Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS Software edition: Advanced, Base, Developer, Enterprise, Express, Liberty, Network Deployment, Single Server Reference #: 0729349 Modified date: 28 August 2018 Security Bulletin Summary There are multiple vulnerabilities in the IBM(R) SDK Java(TM) Technology Edition that is shipped with IBM WebSphere Application Server. These issues were disclosed as part of the IBM Java SDK updates in July 2018. These may affect some configurations of IBM WebSphere Application Server Traditional, IBM WebSphere Application Server Liberty and IBM WebSphere Application Server Hypervisor Edition. Vulnerability Details If you run your own Java code using the IBM Java Runtime delivered with this product, you should evaluate your code to determine whether the complete list of vulnerabilities are applicable to your code. For a complete list of vulnerabilities please refer to the link for "IBM Java SDK Security Bulletin" located in the References section for more information. HP fixes are on a delayed schedule. CVEID: CVE-2018-1656 DESCRIPTION: The IBM Java Runtime Environment's Diagnostic Tooling Framework for Java (DTFJ) does not protect against path traversal attacks when extracting compressed dump files. CVSS Base Score: 7.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/144882 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N) CVEID: CVE-2018-12539 DESCRIPTION: Eclipse OpenJ9 could allow a local attacker to gain elevated privileges on the system, caused by the failure to restrict the use of Java Attach API to connect to an Eclipse OpenJ9 or IBM JVM on the same machine and use Attach API operations to only the process owner. An attacker could exploit this vulnerability to execute untrusted native code and gain elevated privileges on the system. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148389 for more information CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions IBM SDK, Java Technology Editions shipped with WebSphere Application Server Liberty through 18.0.0.12. IBM SDK, Java Technology Editions shipped with IBM WebSphere Application Server Traditional Version 9.0.0.0 through 9.0.0.8, 8.5.0.0 through 8.5.5.14, Version 8.0.0.0 through 8.0.0.15, Version 7.0.0.0 through 7.0.0.45. o This does not occur on IBM SDK, Java Technology Editions that are shipped with WebSphere Application Server Fix Packs 18.0.0.3, 9.0.0.9, 8.5.5.15 or later. Remediation/Fixes Download and apply the interim fix APARs below, for your appropriate release NOTE: The July update added Endpoint identification enabled on LDAPS connections. To improve the robustness of LDAPS (secure LDAP over TLS ) connections, endpoint identification algorithms have been enabled by default. There may be situations where some applications that were previously able to successfully connect to an LDAPS server may no longer be able to do so. Such applications may, if they deem appropriate, disable endpoint identification using a new system property: com.sun.jndi.ldap.object.disableEndpointIdentification. Define this system property (or set it to true) to disable endpoint identification algorithms. This javax.net.ssl.SSLHandshakeException: java.security.cert.CertificateException connecting to a LDAP server is not a Java Security issue. With this LDAP update, LDAP is asking JSSE to validate the LDAP server's certificate to ensure it is compliant with hostname verification. With this change, if the server's certificate is not compliant, then the exception will be thrown. In the past, LDAP did not request JSSE to perform hostname verification and a non-compliant server certificate would not have been caused an issue. In order to resolve the issue either: o Regenerate the LDAP server certificate so that the certificate's subject alternate name or certificate's subject name matches the LDAP server. OR o Disable endpoint identification by setting the system property com.sun.jndi.ldap.object.disableEndpointIdentification=true For the IBM Java SDK updates: For WebSphere Application Server Liberty: For the IBM SDK, Java Technology Version that you use, upgrade to WebSphere Application Server Liberty Fix Packs as noted below or later fix pack level and apply one of the interim fixes below: o Upgrade to WebSphere Application Server Liberty Fix Pack 8.5.5.1 or later then apply Interim Fix PH00181: Will upgrade you to IBM SDK, Java Technology Edition, Version 6R1 Service Refresh 8 Fix Pack 70 o Upgrade to WebSphere Application Server Liberty Fix Pack 8.5.5.1 or later then apply Interim Fix PH00178: Will upgrade you to IBM SDK, Java Technology Edition, Version 7 Service Refresh 10 FP30 o For IBM SDK, Java Technology Edition Version 7R1 and IBM SDK, Java Technology Edition Version 8, please refer to IBM Java SDKs for Liberty --OR-- o Apply IBM Java SDK shipped with WebSphere Application Server Liberty (18.0.0.3) or later (targeted availability 3Q2018). For Version 9 WebSphere Application Server Traditional: Update the IBM SDK, Java Technology Edition using the instructions in the IBM Knowledge Center Installing and updating IBM SDK, Java Technology Edition on distributed environments then use the IBM Installation manager to access the online product repositories to install the SDK or use IBM Installation manager and access the packages from Fixcentral . For V8.5.0.0 through 8.5.5.14 WebSphere Application Server Traditional and WebSphere Application Server Hypervisor Edition: For information on the IBM Java SDK that is now bundled with WebSphere Application Server Version 8.5.5 refer to the Knowledge Center link in the References section. For the IBM SDK, Java Technology Version that you use, upgrade to WebSphere Application Server Fix Packs as noted below or later fix pack level and apply the interim fixes as noted below: For IBM SDK Java Technology Edition Version 6R1 o Apply Interim Fix PI97281 (if not already applied) or upgrade to IBM WebSphere Application Server 8.5.5.14 o Then apply Interim Fix PH00179 : Will upgrade you to IBM SDK, Java Technology Edition, Version 6R1 Service Refresh 8 Fix Pack 70 For IBM SDK Java Technology Edition Version 7 o Apply Interim Fix PI97281 (if not already applied) or upgrade to IBM WebSphere Application Server 8.5.5.14 o Then apply Interim Fix PH00178 : Will upgrade you to IBM SDK, Java Technology Edition, Version 7 Service Refresh 10 FP30 For IBM SDK Java Technology Edition Version 7R1 o Apply Interim Fix PI97281 (if not already applied) or upgrade to IBM WebSphere Application Server 8.5.5.14 o Then apply Interim Fix PH00177 : Will upgrade you to IBM SDK, Java Technology Edition, Version 7R1 Service Refresh 4 FP30 For IBM SDK Java Technology Edition Version 8 o Upgrade to WebSphere Application Server Traditional Fix Pack 8.5.5.9 or later then apply Interim Fix PH00173: Will upgrade you to IBM SDK, Java Technology Edition, Version 8 Service Refresh 5 FP20 o For environnments that have been upgraded to use the new default IBM SDK Version 8 bundled with WebSphere Application Server Fix Pack 8.5.5.11 or later: Apply Interim Fix PH00176: Will upgrade you to IBM SDK, Java Technology Edition, Version 8 Service Refresh 5 FP20 - --OR-- o Apply IBM Java SDK shipped with WebSphere Application Server Fix pack 15 (8.5.5.15) or later (targeted availability 1Q 2019). For V8.0.0.0 through 8.0.0.15 WebSphere Application Server and WebSphere Application Server Hypervisor Edition: Upgrade to WebSphere Application Server Fix Pack 8.0.0.14 or later then apply the interim fixes below: o Apply Interim Fix PI97281 (if not already applied) o Then apply Interim Fix PH00183 : Will upgrade you to IBM SDK, Java Technology Edition, Version 6R1 Service Refresh 8 Fix Pack 70 For V7.0.0.0 through 7.0.0.45 WebSphere Application Server and WebSphere Application Server Hypervisor Edition: Upgrade to WebSphere Application Server Fix Pack 7.0.0.43 or later then apply the interim fix below: o Apply Interim Fix PI97281 (if not already applied) o Then apply Interim Fix PH00185 : Will upgrade you to IBM SDK, Java Technology Edition, Version 6 Service Refresh 16 Fix Pack 70 WebSphere Application Server V7 and V8 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product. Important Note IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk. Change History 28 August 2018: original document 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW4Y7OmaOgq3Tt24GAQh5rQ//VPOmESwu7XpHp8MUFaPympt985af/Abe 6XT9ArOwhr5C5ALOvBs/+7wXWl5EH5uOQBmJHfiCpt8sek2QjNspEEpOu/I8BUyN efk8JuzduC7MSp3npxCNzQzlpVgN+tb09z3QkxY7+iDEEGJwd4u5aynBs5d8GzKr 1ggr6EVOnopWLg5LbjqGlbduecvVdkzIS4WoI4pDCjwT+VEQnJuUvW1fY7yXJFSE o6dF8Ed05gA4X9dTUUBZuYwIhGbtKk52D02GL/JdBfImTlrR1SVr5CEaBixzUB2V aEDAONGZMsmwdca2u9K2K3T40FpYNHi9a+FbzwZGMdCHreCVdbebW2ORrqcrp0Ae 0znRybucVBhGei5OAO4K37iIzLxg9f8qXGoRchAPoEMKyDd3C3p0I7afXnRtDnOr 8tqOZLNr6FVW8W6Pk3n0CB8DIWHEggt98MrLzm+pVRSF2hAkIYRklG4klqfHCORn CofjxtNBgN7v0eclgQHFgukTNra8c5m968NkGTTZ5XIl2GJhieb7CJWqGrFGzzbg 3KIG7eF+zcJRwGxhbv/aw1cEY/KbxXO7n+GzBU2d1waSE2Rzva5PTh8HQOBBJr4z xWk7aLgFO1tqnCdXA2xRbKStiKr8FD9WNlc2gf9gkyjgCMmhoPCAC2HSCZ6DUQh5 kda38PYZ9v8= =4slG -----END PGP SIGNATURE-----