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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0608 Security Bulletin: IBM MessageSight affected by GSKit Sweet32 Birthday attacks (CVE-2016-2183) 9 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM MessageSight Publisher: IBM Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2183 Reference: ASB-2017.0005 ESB-2017.0598 ESB-2017.0596 ESB-2017.0563 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21999452 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM MessageSight affected by GSKit Sweet32 Birthday attacks (CVE-2016-2183) Security Bulletin Document information More support for: IBM MessageSight Security Software version: 1.1, 1.2, 2.0 Operating system(s): Platform Independent Reference #: 1999452 Modified date: 08 March 2017 Summary IBM MessageSight is affected by a GSKit vulnerability in the MQClient. Vulnerability Details CVEID: CVE-2016-2183 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the DES/3DES cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) Affected Products and Versions IBM MessageSight v1.1 - 1.1.0.1 IBM MessageSight v1.2 1.2.0.3 IBM MessageSight v2.0 - 2.0.0.1 Remediation/Fixes Product VRMF APAR Remediation/First Fix IBM MessageSight 1.2 IT19404 1.2.0.3-IBM-IMA-IFIT19404 IBM MessageSight 1.1 IT19404 1.1.0.1-IBM-IMA-IFIT19404 IBM MessageSight 2.0 IT19404 2.0.0.1-IBM-IMA-IFIT19404 Workarounds and Mitigations Disable 3DES ciphers in connected servers or clients. References Complete CVSS v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement None Change History 7 March 2017: 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. 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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 iQIVAwUBWMCbw4x+lLeg9Ub1AQiHAhAAndLpLd91s5kjWFdhb4iIyX9iyCl25xF3 m6us7HGFrEz3Gzz1Jed9Hd0sUDWpemmFd3KlNc7Exj/kaUaNVoMQVSjPRETXWE5T MwCgk+Au8UiCu93OawqYO5+qJjoakJSKohOodBV9c2ThYxK9SFHROsMbTxlDPgWz RwutdNnkkjG/GGfzbyanpOLUz6u+0S2dVwM8SMoTKSmRouFg8jN8YZERxdmhWqal FMmz40vbZtiFpnZinhwZphTeZY568RojS+oycohdaAl7kYRbwZF6BJ1ysZKixp9Q bxZ+DB+Mv5Nxks0OKYVcmam5PljFIMSOFp7xSs9GqgH9teDNc0KWhvkpdNEEt2nj jwwpqLSAhEq46UsRpfWkkcTdfDbT4bXtekOuW4qXGB8XzJpmb0JLrG8I+Z4CUxYv y8FArus9vsS3FbeHZOOxTIL49G/7KEIMRtl+4jLZ27MJJyyTOTlWD/LCTdj+xork Z90cIpuDVN6skog5JBs+kyDlz92twDV0IrHek6Cm9eV8t+0S/uvuZAZ1axqqpa/9 FYT/nPPKWtm0ViTEdDwO2n6M/vsv6VltW/tARFwQNMPMn4yyGb7XvXBsoHQJaSz8 oxWKjCDr/g6Kta5X6iJ0UAODOR0/5MwOPzPDbw6EU6kt92m7T36oFJA0wjoc1WqI IDYcEVZB/FE= =IaSX -----END PGP SIGNATURE-----