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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1215 Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Integration Designer and WebSphere Integration Developer (CVE-2015-2808) 4 May 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Integration Designer IBM WebSphere Integration Developer Publisher: IBM Operating System: Linux variants Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-2808 Reference: ESB-2015.1214 ESB-2015.1202 ESB-2015.1199 ESB-2015.1198 ESB-2015.1197 ESB-2015.1188 ESB-2015.1187 ESB-2015.1183 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21882974 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Integration Designer and WebSphere Integration Developer (CVE-2015-2808) Document information More support for: IBM Integration Designer Security Software version: 7.5, 7.5.0.1, 7.5.1, 7.5.1.1, 7.5.1.2, 8.0, 8.0.1, 8.0.1.1, 8.0.1.2, 8.0.1.3, 8.5, 8.5.0.1, 8.5.5, 8.5.6 Operating system(s): Linux, Windows Reference #: 1882974 Modified date: 2015-05-01 Security Bulletin Summary The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM Integration Designer and WebSphere Integration Developer. Vulnerability Details CVEID: CVE-2015-2808 DESCRIPTION: The RC4 algorithm, as used in the TLS protocol and SSL protocol, could allow a remote attacker to obtain sensitive information. An attacker could exploit this vulnerability to remotely expose account credentials without requiring an active man-in-the-middle session. Successful exploitation could allow an attacker to retrieve credit card data or other sensitive information. This vulnerability is commonly referred to as "Bar Mitzvah Attack". CVSS Base Score: 5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/101851 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) Affected Products and Versions This vulnerability affects IBM Integration Designer and WebSphere Integration Developer. Remediation/Fixes To fully mitigate these vulnerabilities, an additional fix (JR53201) is required for IBM Integration Designer V7.5.1.2 and V8.0.1.3 and WebSphere Integration Developer V7.0.0.5: WebSphere Integration Developer V7.0.0.5 IBM Integration Designer V7.5.1.2 IBM Integration Designer V8.0.1.3 Workarounds and Mitigations If you are using any of the following products: IBM Integration Designer V8.5 IBM Integration Designer V8.5.5.0 IBM Integration Designer V8.5.6.0 then the following steps can be used to remove RC4 from the list of available algorithms: Prerequisite: Before removing RC4 from the list of available algorithms, you must first install the FREAK: Factoring Attack on RSA-EXPORT keys fix. See this document for more information. 1. Ensure that the product is not running. 2. Locate the java.security file used by the product from the following location: install folder/jdk/jre/lib/security/java.security 3. Edit the java.security file with a text editor and locate the line: jdk.tls.disabledAlgorithms=SSLv3 4. Add RC4 to the list of disabled algorithms, for example: jdk.tls.disabledAlgorithms=SSLv3, RC4 5. Save the file and restart the product. You should verify applying this configuration change does not cause any compatibility issues. Not disabling the RC4 stream cipher 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 RC4 stream cipher and take appropriate mitigation and remediation actions. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS Guide On-line Calculator V2 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 1 May 2015: 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. Cross reference information Segment Product Component Platform Version Business Integration WebSphere Integration Developer Security Linux, Windows 7.0.0.5, 7.0.0.4, 7.0.0.3, 7.0.0.2, 7.0.0.1, 7.0 - --------------------------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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