Authentication Bypass

JBoss Enterprise Application Platform 6 is a platform for Java applications based on JBoss Application Server 7. This release serves as a replacement for JBoss Enterprise Application Platform 6.0.1, and includes bug fixes and enhancements. Refer to the 6.1.0 Release Notes for information on the most significant of these changes, available shortly from https://access.redhat.com/site/documentation/ Security fixes: XML encryption backwards compatibility attacks were found against various frameworks, including Apache CXF. An attacker could force a server to use insecure, legacy cryptosystems, even when secure cryptosystems were enabled on endpoints. By forcing the use of legacy cryptosystems, flaws such as CVE-2011-1096 and CVE-2011-2487 would be exposed, allowing plain text to be recovered from cryptograms and symmetric keys. (CVE-2012-5575) Note: Automatic checks to prevent CVE-2012-5575 are only run when WS-SecurityPolicy is used to enforce security requirements. It is best practice to use WS-SecurityPolicy to enforce security requirements. When applications running on JBoss Web used the COOKIE session tracking method, the org.apache.catalina.connector.Response.encodeURL() method returned the URL with the jsessionid appended as a query string parameter when processing the first request of a session. An attacker could possibly exploit this flaw by performing a man-in-the-middle attack to obtain a user’s jsessionid and hijack their session, or by extracting the jsessionid from log files. Note that no session tracking method is used by default, one must be configured. (CVE-2012-4529) If multiple applications used the same custom authorization module class name, and provided their own implementations of it, the first application to be loaded will have its implementation used for all other applications using the same custom authorization module class name. A local attacker could use this flaw to deploy a malicious application that provides implementations of custom authorization modules that permit or deny user access according to rules supplied by the attacker. (CVE-2012-4572) Red Hat would like to thank Tibor Jager, Kenneth G. Paterson and Juraj Somorovsky of Ruhr-University Bochum for reporting CVE-2012-5575. CVE-2012-4572 was discovered by Josef Cacek of the Red Hat JBoss EAP Quality Engineering team. Warning: Before applying this update, back up your existing JBoss Enterprise Application Platform installation and deployed applications. Refer to the Solution section for further details. All users of JBoss Enterprise Application Platform 6.0.1 on Red Hat Enterprise Linux 5 are advised to upgrade to these updated packages. The JBoss server process must be restarted for the update to take effect.