22 July 2015
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1909 Security Bulletin: Vulnerability in Diffie-Hellman ciphers affects IBM InfoSphere Guardium (CVE-2015-4000) 22 July 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM InfoSphere Guardium Publisher: IBM Operating System: Linux variants Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-4000 Reference: ASB-2015.0070 ASB-2015.0066 ESB-2015.1469 ESB-2015.1466 ESB-2015.1463 ESB-2015.1455.2 ESB-2015.1454.2 ESB-2015.1453.2 ESB-2015.1452 ESB-2015.1445 ESB-2015.1443 ESB-2015.1432 ESB-2015.1425 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21961558 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in Diffie-Hellman ciphers affects IBM InfoSphere Guardium (CVE-2015-4000) Security Bulletin Document information More support for: InfoSphere Guardium Software version: 8.2, 9.0, 9.1, 10.0 Operating system(s): Linux Reference #: 1961558 Modified date: 2015-07-21 Summary The Logjam Attack on TLS connections using the Diffie-Hellman (DH) key exchange protocol affects IBM InfoSphere Guardium. 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) Affected Products and Versions 8.2, 9X, Guardium for Applications (10) Remediation/Fixes Product VRMF APAR Remediation/First Fix IBM InfoSphere Guardium 8.2 PSIRT 56803 http://www-933.ibm.com/support/fixcentral/swg/doSelectFixes?options.selectedFixes=SqlGuard_8.2p6012_SecurityUpdate&continue=1 IBM InfoSphere Guardium 9.x PSIRT 56803 http://www-933.ibm.com/support/fixcentral/swg/doSelectFixes?options.selectedFixes=SqlGuard_9.0p6012_SecurityUpdate&continue=1 IBM InfoSphere Guardium for Applications GFA (10) PSIRT 56803 http://www-933.ibm.com/support/fixcentral/swg/doSelectFixes?options.selectedFixes=SqlGuard_10.0p6012_SecurityUpdate_GFA&continue=1 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 Acknowledgement Reported to IBM by The WeakDH team at https://weakdh.org *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 email@example.com 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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