==================================================================== Red Hat Security Advisory Synopsis: Important: tomcat security update Advisory ID: RHSA-2009:1563-01 Product: Red Hat Developer Suite v.3 Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1563.html Issue date: 2009-11-09 CVE Names: CVE-2007-5333 CVE-2008-5515 CVE-2009-0033 CVE-2009-0580 CVE-2009-0783 ==================================================================== 1. Summary: Updated tomcat packages that fix several security issues are now available for Red Hat Developer Suite 3. This update has been rated as having important security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Developer Suite v.3 (AS v.4) - noarch 3. Description: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. It was discovered that the Red Hat Security Advisory RHSA-2008:0195 did not address all possible flaws in the way Tomcat handles certain characters and character sequences in cookie values. A remote attacker could use this flaw to obtain sensitive information, such as session IDs, and then use this information for session hijacking attacks. (CVE-2007-5333) Note: The fix for the CVE-2007-5333 flaw changes the default cookie processing behavior: With this update, version 0 cookies that contain values that must be quoted to be valid are automatically changed to version 1 cookies. To reactivate the previous, but insecure behavior, add the following entry to the "/etc/tomcat5/catalina.properties" file: org.apache.tomcat.util.http.ServerCookie.VERSION_SWITCH=false It was discovered that request dispatchers did not properly normalize user requests that have trailing query strings, allowing remote attackers to send specially-crafted requests that would cause an information leak. (CVE-2008-5515) A flaw was found in the way the Tomcat AJP (Apache JServ Protocol) connector processes AJP connections. An attacker could use this flaw to send specially-crafted requests that would cause a temporary denial of service. (CVE-2009-0033) It was discovered that the error checking methods of certain authentication classes did not have sufficient error checking, allowing remote attackersto enumerate (via brute force methods) usernames registered with applications running on Tomcat when FORM-based authentication was used. (CVE-2009-0580) It was discovered that web applications containing their own XML parserscould replace the XML parser Tomcat uses to parse configuration files. A malicious web application running on a Tomcat instance could read or, potentially, modify the configuration and XML-based data of other web applications deployed on the same Tomcat instance. (CVE-2009-0783) Users of Tomcat should upgrade to these updated packages, which contain backported patches to resolve these issues. Tomcat must be restarted for this update to take effect. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at 5. Bugs fixed (https://bugzilla.redhat.com/): 427766 - CVE-2007-5333 Improve cookie parsing for tomcat5 493381 - CVE-2009-0033 tomcat6 Denial-Of-Service with AJP connection 503978 - CVE-2009-0580 tomcat6 Information disclosure in authentication classes 504153 - CVE-2009-0783 tomcat XML parser information disclosure 504753 - CVE-2008-5515 tomcat request dispatcher information disclosure vulnerability 6. Package List: Red Hat Developer Suite v.3 (AS v.4): Source: tomcat5-5.5.23-0jpp_18rh.src.rpm noarch: tomcat5-5.5.23-0jpp_18rh.noarch.rpm tomcat5-common-lib-5.5.23-0jpp_18rh.noarch.rpm tomcat5-jasper-5.5.23-0jpp_18rh.noarch.rpm tomcat5-jsp-2.0-api-5.5.23-0jpp_18rh.noarch.rpm tomcat5-server-lib-5.5.23-0jpp_18rh.noarch.rpm tomcat5-servlet-2.4-api-5.5.23-0jpp_18rh.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5333 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5515 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0033 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0580 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0783 https://tomcat.apache.org/security-5.html https://www.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is
. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2009 Red Hat, Inc.