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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1183 Security Bulletin: Vulnerability in RC4 stream cipher affects IBM QRadar SIEM (CVE-2015-2808) 30 April 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM QRadar SIEM Publisher: IBM Operating System: Linux variants Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-2808 Reference: ESB-2015.1168 ESB-2015.1166 ESB-2015.1160 ESB-2015.1159 ESB-2015.1156 ESB-2015.1155 ESB-2015.1154 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21883359 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in RC4 stream cipher affects IBM QRadar SIEM (CVE-2015-2808) Document information More support for: IBM Security QRadar SIEM Software version: 7.1, 7.2 Operating system(s): Linux, Windows Reference #: 1883359 Modified date: 2015-04-29 Security Bulletin Summary The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM QRadar SIEM. 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: Seehttps://exchange.xforce.ibmcloud.com/vulnerabilities/101851for 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 QRadar SIEM 7.2.4 Patch 4 iFix01 and earlier QRadar SIEM 7.1 MR2 Patch 10 iFix01 and earlier Remediation/Fixes Product VRMF Remediation/First Fix QRadar SIEM 7.2.4 QRadar SIEM 7.2.4 Patch 5 iFix01 QRadar SIEM 7.1 MR2 QRadar SIEM 7.1 MR2 Patch 10 iFix02 You should verify applying this fix does not cause any compatibility issues. The fix disables RC4 stream cipher by default. If you change the default setting after applying the fix, 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 None 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 April 29, 2015: 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVUFxuxLndAQH1ShLAQKlGw/9Gk3PaNyOEAesNgUNb6KKiMvoVKSnvyF4 SCir36hcbeAJ1C46kHw9GY3nXSW3Rw9yLsHQFIVlUPDugatBF+mz2luIRS8Nlvug ilSgL3Gbx6ABJjOFPtOMI+/2D4jW+V0SuVmy/H0ZkVI4HqQEMywytqqj7llka9CH z+4GKBFHZxp1iaHhLOmX0bX3PeS+Yo1ZDZ2rUpkptmmIq/WzuOFHYZSSQSqJz5RK clnyqIFfeVfuJYHWG+i9kIG4PaLKe6FXWqTZ56fa6MTJ9B/1zZciF1szuimdGdW7 oyRHXr2TmzRsTVkcQd2mg5hnawA4NUYFEk2PqaXac/1W39zyzU3C2r4MBcgdvdYo C35MDtoX0cKEVuVbk5CKcGnJBy3n2hMU7MInRHX1FHuWbpyXYZ1IE5XSH5/xvlBN zrjUAkcDnmKjyVUwHjniY2EUVJgj3umIX0P/k95skKQW+N39hNT4/82PL+Bjcy8C SjaSqjPQVzBc8bdAw+ap74EfyofScrHDgWyvhgciFbXYchs60nbvHgaKs8gvofo0 /fChOx2EaWrOLSV8yV3S50dQsuhPQ9748qr7TR4hehLpEzftvzmCaKGHAX9L7X8n HIKjX8Sng1vIM3N2/Psm1Qsx3HtJ+mM8XlJ38QnZg3eCJJ3AskfYdaRxgRyJPTNd 2FC68bXIEkY= =4y5b -----END PGP SIGNATURE-----