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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0216 Important: jbossweb security update 22 February 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: jbossweb Publisher: Red Hat Operating System: Red Hat Impact/Access: Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-0022 CVE-2011-5064 CVE-2011-5063 CVE-2011-5062 CVE-2011-4858 CVE-2011-4610 CVE-2011-2526 CVE-2011-1184 Reference: ASB-2011.0064.2 ESB-2012.0122 ESB-2012.0112.2 ESB-2012.0103 ESB-2012.0102 ESB-2012.0073 ESB-2012.0067 ESB-2011.1271 ESB-2011.1197 ESB-2011.0975 ESB-2011.0726 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0325.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: jbossweb security update Advisory ID: RHSA-2012:0325-01 Product: JBoss Enterprise Middleware Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0325.html Issue date: 2012-02-22 CVE Names: CVE-2011-1184 CVE-2011-2526 CVE-2011-4610 CVE-2011-4858 CVE-2011-5062 CVE-2011-5063 CVE-2011-5064 CVE-2012-0022 ===================================================================== 1. Summary: An update for JBoss Enterprise BRMS Platform 5.2.0, JBoss Enterprise Portal Platform 5.2.0, and JBoss Enterprise SOA Platform 5.2.0 that fixes multiple security issues is now available from the Red Hat Customer Portal. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Description: JBoss Web is a web container based on Apache Tomcat. It provides a single deployment platform for the JavaServer Pages (JSP) and Java Servlet technologies. A flaw was found in the way JBoss Web handled UTF-8 surrogate pair characters. If JBoss Web was hosting an application with UTF-8 character encoding enabled, or that included user-supplied UTF-8 strings in a response, a remote attacker could use this flaw to cause a denial of service (infinite loop) on the JBoss Web server. (CVE-2011-4610) It was found that the Java hashCode() method implementation was susceptible to predictable hash collisions. A remote attacker could use this flaw to cause JBoss Web to use an excessive amount of CPU time by sending an HTTP request with a large number of parameters whose names map to the same hash value. This update introduces a limit on the number of parameters and headers processed per request to mitigate this issue. The default limit is 512 for parameters and 128 for headers. These defaults can be changed by setting the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties in "jboss-as/server/[PROFILE]/deploy/properties-service.xml". (CVE-2011-4858) It was found that JBoss Web did not handle large numbers of parameters and large parameter values efficiently. A remote attacker could make a JBoss Web server use an excessive amount of CPU time by sending an HTTP request containing a large number of parameters or large parameter values. This update introduces limits on the number of parameters and headers processed per request to address this issue. Refer to the CVE-2011-4858 description for information about the org.apache.tomcat.util.http.Parameters.MAX_COUNT and org.apache.tomcat.util.http.MimeHeaders.MAX_COUNT system properties. (CVE-2012-0022) Multiple flaws were found in the way JBoss Web handled HTTP DIGEST authentication. These flaws weakened the JBoss Web HTTP DIGEST authentication implementation, subjecting it to some of the weaknesses of HTTP BASIC authentication, for example, allowing remote attackers to perform session replay attacks. (CVE-2011-1184, CVE-2011-5062, CVE-2011-5063, CVE-2011-5064) A flaw was found in the way JBoss Web handled sendfile request attributes when using the HTTP APR (Apache Portable Runtime) or NIO (Non-Blocking I/O) connector. A malicious web application running on a JBoss Web instance could use this flaw to bypass security manager restrictions and gain access to files it would otherwise be unable to access, or possibly terminate the Java Virtual Machine (JVM). (CVE-2011-2526) Red Hat would like to thank NTT OSSC for reporting CVE-2011-4610; oCERT for reporting CVE-2011-4858; and the Apache Tomcat project for reporting CVE-2011-2526. oCERT acknowledges Julian Wälde and Alexander Klink as the original reporters of CVE-2011-4858. Warning: Before applying this update, back up your JBoss installation, including any databases, applications, configuration files, and so on. All users of JBoss Enterprise BRMS Platform 5.2.0, JBoss Enterprise Portal Platform 5.2.0, and JBoss Enterprise SOA Platform 5.2.0 as provided from the Red Hat Customer Portal are advised to install this update. 3. Solution: The References section of this erratum contains download links (you must log in to download the update). The JBoss server process must be restarted for this update to take effect. For users of JBoss Enterprise BRMS Platform and JBoss Enterprise SOA Platform, it is recommend to halt the server by stopping the JBoss Application Server process before installing this update, and then after installing the update, restart the server by starting the JBoss Application Server process. 4. Bugs fixed (http://bugzilla.redhat.com/): 720948 - CVE-2011-2526 tomcat: security manager restrictions bypass 741401 - CVE-2011-1184 CVE-2011-5062 CVE-2011-5063 CVE-2011-5064 tomcat: Multiple weaknesses in HTTP DIGEST authentication 750521 - CVE-2011-4858 tomcat: hash table collisions CPU usage DoS (oCERT-2011-003) 767871 - CVE-2011-4610 JBoss Web remote denial of service when surrogate pair character is placed at buffer boundary 783359 - CVE-2012-0022 tomcat: large number of parameters DoS 5. References: https://www.redhat.com/security/data/cve/CVE-2011-1184.html https://www.redhat.com/security/data/cve/CVE-2011-2526.html https://www.redhat.com/security/data/cve/CVE-2011-4610.html https://www.redhat.com/security/data/cve/CVE-2011-4858.html https://www.redhat.com/security/data/cve/CVE-2011-5062.html https://www.redhat.com/security/data/cve/CVE-2011-5063.html https://www.redhat.com/security/data/cve/CVE-2011-5064.html https://www.redhat.com/security/data/cve/CVE-2012-0022.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=brms&downloadType=securityPatches&version=5.2.0 https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jbportal&downloadType=securityPatches&version=5.2.0 https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=soaplatform&downloadType=securityPatches&version=5.2.0+GA 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPRHogXlSAg2UNWIIRAprrAJ9Hqc55CPhflnMk1wb3idOY888RUACgmv5J XRjBMOHZR1NRxbhlHmVqIwY= =eZiM - -----END PGP SIGNATURE----- - --------------------------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. 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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 iQIVAwUBT0SKm+4yVqjM2NGpAQLEGg/9EoMX8PQmTFbVlcQvmGSGziki+5pHviH2 kG1f+JiXi/lBuuu8OfDfvSirfA+xmui5q+KCbelx6BweZ0UVMJ+Z95aFZCK2h+oi GxgEPwbx5M5cNxhA9o9QayXJAQVmAUJCJyurMBZ8U9YPYiuLciqNMiI0YpPfNt19 4bLSwYBVkkRGoZdZz72bqtdEgCbwbEjuVA+p3MwfsFoEozYnZ8HQrFiiK03jw4+O 4EzPeGqK4zx4Y8dbUF8qJdUe8NUA76YoWTeQRD1/Kuiz4e1jIave3+Mr/0ElzfGU Nl85GiomsIRM00lsKmqK1QHiLbPrUS4hxP5xzl6b2Dw7LUZ2euCG7aENLjYK5Uw/ LQcwFDtp2sJnbCsfhM40yPf1YWDU7yS3kDxhOI0gEeHlyqiyBno2YZY5vRgF3wJ1 ldwMWSQhRvoHVQs4wobjqLok2KJWk+NpLnQrnA/JgccuuTGS17GAgrC1oEF6lTGM 4BQK8skSfozLiBkIOv61z+lxn2O2iN+7BPKNHoZCL5EAtlea1YGCoSiT5z+Kpqvz pwi57UY05FnKWg4oECKpkTPUTKloLBY0n1mQAy7+7Zxmy4nmDi+0w8SAA/XP59fb 3++B4Cn1uznmAX4QTc/son6zDYM67mwqiX48ERTp9v7xqYSouZvig97P9AIDEkbQ 3k5dENjQbcI= =7SVS -----END PGP SIGNATURE-----