04 June 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1459 Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Security AppScan Source (CVE-2015-2808) 4 June 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Security AppScan Source Publisher: IBM Operating System: Linux variants Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-2808 Reference: ESB-2015.1266 ESB-2015.1118 ESB-2015.0964 ESB-2015.0960 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21959069 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in RC4 stream cipher affects IBM Security AppScan Source (CVE-2015-2808) Document information More support for: IBM Security AppScan Source Software version: 22.214.171.124 Operating system(s): Linux, Windows Reference #: 1959069 Modified date: 2015-06-03 Security Bulletin Summary The RC4 Bar Mitzvah Attack for SSL/TLS affects IBM Security AppScan Source 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 IBM Security AppScan Source 8.6.x Remediation/Fixes IBM Security AppScan Source 8.6 patch:http://www.ibm.com/support/fixcentral/quickorder?product=ibm%2FRational %2FAppScan+Source+Edition&fixids=AppScanSource-126.96.36.199-PSIRT-Fix&source=SAR 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 June 3, 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 firstname.lastname@example.org 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: email@example.com 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 iQIVAwUBVXACpBLndAQH1ShLAQJBMw//YQnYWFavTd8TjO9NssCSos5SQA1GTtkk 2yBb/3sbf1L05eumQaGaXogpqo+vMnMPAzNiEht/gkJSuvWZBXPeQ+DbMyd4+wCM qUxAAD2/aUFC8zmdKkkgD5izdhquwIg0zStI1xFMuZTypqCwJxBrdJ10NgpbsXyT p3245qtMA7csohYLlOZKPdwv0ugPr+aB2weS80hpvPsMLj8WO4ZjO3zCTTq5grus 8zFR2LfGUbCe8r181NHhaJI48YQX1R+NAqt63NvMcJ0Q0QGBG6mxy+Tz98AiNDgn bVD55NbT36lAUqWKVXTWNeZO5SZ85oxyPOwewmLjYdjuj20HwPWzz2w8WCXE3dFf ItRMp9g1eAMhwGFITkO7TdB9V53jpOGwWDQzh1rY9otE50iOwWCCU4XWSiUR1H+4 ghEGdZOdrD3EHOs2HlmsXg2EhSe/auVqKFSoJPhF3xB2Tj99hsgXd9FL1avVwbOZ QA3kcabURpBuJbmT0sSBu+uqOeHlzkzuKXKS/Ny52lE+4V23a4xAj9VxXJtvAxf5 hfvAYiO2wM5z/CZ8bPXeD2v1uIy43RZaONsD6NM04j90hnWNp/5dulAMnhxRQoMA madvFf6ouFA0wQPNk1Fi93o7EflmOe0MZEJs2P0bUGfO7DyLXc8blPdq6Q9fBWJa CqBpY9LwllY= =UKgH -----END PGP SIGNATURE-----