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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0768 Security Bulletin: Potential Security Exposure in IBM HTTP Server CVE-2013-0169 PM85211 & PM85211: TLS spec vulnerability (CVE-2013-0169) 3 June 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebSphere Application Server IBM HTTP Server Publisher: IBM Operating System: AIX HP-UX Linux variants Solaris Windows z/OS Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2013-0169 Reference: ASB-2013.0069 ASB-2013.0025 ESB-2013.0767 ESB-2013.0760 ESB-2013.0749 ESB-2013.0744 ESB-2013.0712 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21635988 http://www-01.ibm.com/support/docview.wss?uid=swg24035061 Comment: This bulletin contains two (2) IBM security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Potential Security Exposure in IBM HTTP Server CVE-2013-0169 PM85211 Flash (Alert) Document information WebSphere Application Server Security Software version: 6.1, 7.0, 8.0, 8.5 Operating system(s): AIX, HP-UX, Linux, Solaris, Windows, z/OS Software edition: Base, Developer, Express, Network Deployment Reference #: 1635988 Modified date: 2013-05-30 Abstract Potential Security Exposure with IBM HTTP Server for WebSphere Application Server Content VULNERABILITY DETAILS: CVE ID: CVE-2013-0169 (PM85211) DESCRIPTION: The TLS protocol in the GSKIT component of the IBM HTTP Server does not properly consider timing side-channel attacks, which could allow a remote attacker to conduct distinguishing attacks and plain-text recovery attacks via statistical analysis of timing data for crafted packets, aka the "Lucky Thirteen" issue. CVSS: CVSS Base Score: 4.3 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81902 for the current score CVSS Environmental Score*: Undefined CVSS String: (AV:N/AC:M/Au:N/C:P/I:N/A:N) AFFECTED VERSIONS: This problem affects the IBM HTTP Server component in all editions of WebSphere Application Server and bundling products: · Version 8.5 · Version 8 · Version 7 · Version 6.1 REMEDIATION: The recommended solution is to apply the Fix Pack or PTF for each named product as soon as practical Fix: Apply a Fix Pack or PTF containing this APAR PM85211, as noted below: For affected versions of IBM HTTP Server for WebSphere Application Server: For V8.5.0.0 through 8.5.0.2 Full Profile: Apply Interim Fix PM85211 - --OR-- Apply Fix Pack 8.5.5.0 or later (targeted to be available mid June 2013) For V8.0.0.0 through 8.0.0.6: Apply Interim Fix PM85211 - --OR-- Apply Fix Pack 8.0.0.7 or later (targeted to be available late August 2013) For V7.0.0.0 through 7.0.0.27: Apply Interim Fix PM85211 - --OR-- Apply Fix Pack 7.0.0.29 or later (targeted to be available late June 2013) For V6.1.0.0 through 6.1.0.45: Apply Interim Fix PM85211 - --OR-- Apply Fix Pack 6.1.0.47 or later (targeted to be available late September 2013) · Workaround(s): None · Mitigation(s): None Important note: IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk. For additional details and information on WebSphere Application Server product updates: For Distributed, see Recommended fixes for WebSphere Application Server. For z/OS, see APAR/PTF Tables by version for IBM WebSphere Application Server for z/OS. REFERENCES: · Complete CVSS Guide · On-line Calculator V2 · CVE-2013-0169 xforce.iss.net/xforce/xfdb/81902 CHANGE HISTORY: · 30 May 2013: Original copy 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 Flash. Note: 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. - -------------------------------------------------------------------------------- PM85211: TLS spec vulnerability (CVE-2013-0169) Downloadable files Document information WebSphere Application Server IBM HTTP Server Software version: 6.1, 7.0, 8.0, 8.5 Operating system(s): AIX, HP-UX, Linux, Solaris, Windows Software edition: Advanced, Base, Enterprise, Express, Network Deployment, Single Server Reference #: 4035061 Modified date: 2013-05-30 Abstract This interim fix upgrades the GSKit shipped with IBM HTTP Server to resolve the CVE-2013-0169 TLS vulnerability. Download Description PM85211 resolves the following problem: USERS AFFECTED: IBM HTTP Servers using CBC ciphers PROBLEM DESCRIPTION: TLS spec vulnerability (CVE-2013-0169) RECOMMENDATION: Apply this fix if using CBC ciphers. LOCAL FIX: Disable CBC ciphers. PROBLEM CONCLUSION: The GSKit security library was updated to resolve the exposure. This fix is targeted for IBM HTTP Server fixpacks/releases: - - 6.1.0.47 - - 7.0.0.29 - - 8.0.0.7 - - 8.5.5.0 IBM HTTP Server is distributing an updated GSKit security library as an interim fix. No configuration is required once GSKit is updated to 7.0.4.45 or 8.0.14.27. For IHS version 8.0 and 8.5: The interim fix can be installed using Installation Manager (IM) with the Web-based ("live") repository provided by IBM. It is necessary to de-select the "Show recommended only" option within IM and to expand "Only fixes for version 8.x.y.z" to see the fix listed. The interim fix is also available from Fix Central at the link listed in the Download Package section below. For IHS versions prior to 8.0: This standalone GSKit update has been published to the IBM HTTP Server Fixes download site, and are located under the 'GSKit Version 7' section for your platform. Click 'here' to be taken to the login page. For IBM HTTP Server 6.x releases, download the GSKit 7.0.4.45 package and Readme under the section labeled 'PM85211 - IHS Version 6' For IBM HTTP Server 7.0 releases, download the GSKit 7.0.4.45 package and Readme under the section labeled 'PM85211 - IHS Version 7' Installation Instructions Review the readme.txt available with the fix for installation instructions. Download package Download RELEASE DATE LANGUAGE SIZE(Bytes) Download Options Fix for 8.0.0.0 23 May 2013 US English 142299011 FC - - 8.0.0.6 Fix for 8.5.0.0 23 May 2013 US English 142239112 FC - - 8.5.0.2 Technical support Contact IBM Support using SR (http://www.ibm.com/software/support/probsub.html), visit the WebSphere Application Server support web site (http://www.ibm.com/software/webservers/appserv/was/support/), or contact 1-800-IBM-SERV (U.S. only). Problems (APARS) fixed PM85211 - --------------------------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. 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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 iQIVAwUBUawMQ+4yVqjM2NGpAQJXjQ//cw+PQJsQ78ulv54mBOu5oHOBqZucGPcE +y0ylttifQatjqPjDsxbLBo30F3DTZ7m/N4heGmKl+MV7oOmXlaUENWPaczSfs9k 4PrW9zZ1qJf3QGKh7JnaS7w520YkgIYUgUyzzmP95WSWh6JJwQh0AslL/gYI/HI4 qq+ipTl6p6E7ZuuAvT0LzTrx8puQ3a2ryCPY3I62jJEILUxA1BUu5sS6nHC/yOei aQ3uIjV9GJOVmHK/j06bdVYHpDnh8xU4c9arE53dQnXFlugSdrIYeq07FUnIED6c f2coxLAIpJSjXV3DfvvZs5/q+wxPRZsFD8/E5kYLx7LWM+8j/MaW+OmPrWEQjBvs 6UsHHO4rtDjEh+KbT3Us0H7mwwqeYlUZ32dnZ0meEeVPtSJ9IU5DFq3my8D0iNj+ YGbNd4/JavUMOzJnR+ioRqein0j0QXDJqFJOd0lI9ZerkeDJVOt9uKcuF5cPYwfH PcnwaMyAXASJeCWTmgP//rIEcVi9xp5alj5dVhUwMjvxSNCD4LIb2mGzIrxiLexD cpT/BjQoUsmsHR8yF0+1u3A7cFAcUq2CmX7GE8vfdWA/3K75aT6SIJfOHZdhntlU p4ItmqJLE1pZhVYlPn5WoOWDktzwa+8UN2Mt7c4ZvECzYJ7xBFviCboK3sEFdMua 8tyETQxMyxg= =6IPj -----END PGP SIGNATURE-----