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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1150 Security Bulletin: Vulnerability in RC4 stream cipher affects WebSphere DataPower XC10 Appliance V2.1 (CVE-2015-2808) 28 April 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM WebSphere XC10 DataPower Appliance Publisher: IBM Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-2808 Reference: ESB-2015.1148 ESB-2015.1147 ESB-2015.1143 ESB-2015.1141 ESB-2015.1140 ESB-2015.1130 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21883666 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in RC4 stream cipher affects WebSphere DataPower XC10 Appliance V2.1 (CVE-2015-2808) Document information More support for: WebSphere DataPower XC10 Appliance Software version: 2.1 Operating system(s): Firmware Reference #: 1883666 Modified date: 2015-04-24 Security Bulletin Summary The RC4 Bar Mitzvah Attack for SSL/TLS affects WebSphere DataPower XC10 Appliance Version 2.1. WebSphere DataPower XC10 Appliance Version 2.5 is not affected. 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 WebSphere DataPower XC10 Appliance V2.1 Remediation/Fixes The only remediation is to apply the following fixes: Product WebSphere DataPower XC10 Appliance VRMF 2.1 APAR IT08240 Remediation/First Fix http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+DataPower+XC10+Appliance&release=2.1.0.3&platform=All&function=all Verify that applying this fix does not cause any compatibility issues. The fix disables RC4 stream cipher by default. If you change this setting you 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. Workarounds and Mitigations For WebSphere DataPower XC10 Appliance Version 2.1 will need to apply the appropriate fix. This will disable the RC4 algorithm used on the appliance. 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 24 April 2014 *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 iQIVAwUBVT7MCxLndAQH1ShLAQJrVw//ezQJWcwPi9kQz7AG2KjdlVOesvCfT1Oa 1IkApR4p0DYiDHbukkEIkxtBsxDikokra9AWBktZk0SUM17YYxbFG3qOtfa4rmYh SC4FL/TlTnVS4NtdB27ckfTg5rehmtV5v2w6vTG+4we4eeG+sovBfmS/eu4yGnkH /59E9BUfTN9GheMkDRQXpAWiN/H1Y+8/C1CpH7lRNm4MfK8N21AHxPNCa+W5C2FK 3CoIeEMf2ugGx026riqM4RJlxXicbq/rKuQimVSzhLrYI6paQ3/mr9NjhpcU1qhD RxGxyC0mcekgIVwSJm/pM4dfUQ3P+jJEBSanZ1DgCt9Dp1ZjBJ2boqP517x14yFC mPMVNHyiNQdYphSBIIUFC76TXbxODlYDfQ62ue7XgZ3XMDWsvVVpRdSwefatn6+I wg/pZbPmjydyoJ7ngcVQVUZFv2y0/e/+FGvOu1oONZKgI9XiKbd9RDkzy8PPXLIh cKTSWZXh1SwNr1bG0TuUzy7bLMWnLw1wAK7WQaH1vQRuGodoH2i8+PTgKnloVpsT MqJpiYvPQ+2zPc3bnJUlOpYlnYUkB1x9yFuNGJOzELxHcQWQKpB2gHGK5ZzdwMf1 w0ZTI7DOmzui32VzgQdO7kQo0c+3IVwqHoIRhsf3IYdQDngrh/+7ZK5mpR4xOqK7 kXtVuD32o/w= =G6iS -----END PGP SIGNATURE-----