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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1406 Security Bulletin: SSL/TLS side channel timing vulnerability on WebSphere DataPower (CVE-2014-0852) 18 August 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM WebSphere DataPower SOA Appliances Publisher: IBM Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-0852 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21678204 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: SSL/TLS side channel timing vulnerability on WebSphere DataPower (CVE-2014-0852) Security Bulletin Document information More support for: WebSphere DataPower SOA Appliances General Software version: 4.0.2, 5.0.0, 6.0.0, 6.0.1 Operating system(s): Firmware Reference #: 1678204 Modified date: 2014-08-12 Summary DataPower appliances might be subject to side channel timing based attacks. Vulnerability Details CVE ID: CVE-2014-0852 DESCRIPTION: DataPower appliances might be subject to side channel timing based attacks resulting in the decryption of an SSL/TLS secured transaction. The attack can only be performed if the attacker is on the same LAN segment as the DataPower appliance. The attacker has to send several million requests to the DataPower appliance and monitor the response times for each of these messages in order to recover the PreMasterSecret used in the SSL/TLS communication. CVSS Base Score: 4.3 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90753 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 Products: WebSphere DataPower SOA Appliances. Versions: All versions through 4.0.2.15, 5.0.0.17, 6.0.0.9, 6.0.1.5. Note that versions 7.0.0.0 and higher are not affected by this vulnerability. Hardware models: All platforms - 9004, 9005 and HS22 Blade. (9004 MTM - 9235-xxx; 9005 MTM - 7198 (1U) and 7199 (2U); HS22 - Integration Blade XI50B Type 4195) Note that DataPower Virtual edition is not affected. Remediation/Fixes Fix for 9005 and HS22 platforms are available in versions 5.0.0.16, 6.0.0.8, 6.0.1.4. You can also upgrade to version 7.0.0.0 or higher as they are not affected by this vulnerability. Fix for 9004 platform is available in versions 5.0.0.16 and 6.0.0.8. Note that due to the hardware limitations of the 9004 platform (which has reached end-of-service), the fix might not completely prevent DataPower against timing based attacks, as there might still be a visible timing latency on the responses on 9004 platforms. Refer to APAR IT01111 for download links. Customers using DataPower v4.0.2 on extended support, contact customer service. Workarounds and Mitigations Secure the LAN environment around DataPower appliances. Monitor for suspicious activity around your network. Any illicit clients should be denied access to the network immediately. References Complete CVSS Guide On-line Calculator V2 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement The vulnerability was reported to IBM by Juraj Somorovsky (Chair for Network and Data Security, Ruhr University Bochum), Sebastian Schinzel (Department of Computer Science, Mnster University of Applied Sciences), Christopher Meyer (Chair for Network and Data Security, Ruhr University Bochum) Change History 08 August 2014: 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 iQIVAwUBU/GHqBLndAQH1ShLAQKeDw//aa6nk1bUrGCvnn5JRyWh9cmGMXMuflFr zrtv9m14lGqszrgtDUvwGgVqdOAQOvPnSnKX6qxenUylhmGUeeEnS1xyZMNJ4SLZ G4d5+0c3x32LoqRCp8IpO5YyaagnRq/QI1Q1iFvjkJpO/gS4MqCDznYSZD+qm9/m +SYRvZyc7Mb0NhRPw/Wls7sgFxOgiATkxAoNhgkUo4szmJYA1HMc67PArefLMJQk 4nWUDAuhk7NeK0LysusFGHnDND/RQRkWs6QHGU8sRXWzksnfe10HccHa59ph3+qb uXJeiIgbv2uRmoIWdHPm/Cxc1uQX55eYxCb8qbMKcym8wP1MLpzQ6ypnNlFsRRR6 xS0gA4KX6e4o0o24fUGRT2zc86Ma06wGTKzVFsJg8KV6fOpGgipdRGBZcCbJaI8q AHNMRoQbDen3e3SJI+s1J5IRChSoiqXuWkoO0LkDcCd7bJm++iIJrQideZOtBnDD fKOfEZJJ1rRNX/vDgpC2Mmrgtb4xmY7BlAO4/K8ZJY/i0W4X84aCVGxMJMOsXXLk F3Nir+ydtPqUwJY8+xdbcAjEVG2Ugu4VNRdkar/RjXUzAyhE5ykOQ7xXQEmkJ1x8 Tc5/sz4XIBZwZBbx/hAa/nYMCfApgZ46ZhLtZPttJeEMEO8uYPi42iLbzaj1mMaL LZoA+sesNE0= =jjw6 -----END PGP SIGNATURE-----