-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Symantec Vulnerability Research http://www.symantec.com/research Security Advisory Advisory ID: SYMSA-2006-011 Advisory Title: JBoss Java Class DeploymentFileRepository Directory Traversal Author: Oliver Karow / olver_Karow[@]symantec.com Release Date: 27-11-2006 Application: JBoss Web Server 1.0.0.GA Platform: Java (Windows / Linux) Severity: Remotely exploitable / User access Vendor status: Vendor verified, patch is available CVE Number: CVE-2006-5750 Reference: http://www.securityfocus.com/bid/21219 Overview: From JBoss Documentation: "This class wraps the file system for deployments. It gives a file-based persistence mechanism for deployments. Used by web-console to store -service.xml files, -ds.xml files, etc..., really anything text based. Deployments are tied to a specific name and that name corresponds to the base file name." The class can be abused to create files outside of the application root directory, and could allow an attacker who has access to the management console the ability to read or write files with the permissions of the JBoss user, potentially leading to arbitrary code execution. Details: The method setBaseDir() of the class org.jboss.console.manager.DeploymentFileRepository does not check if the basedir is set to a directory outside of the application root directory via directory traversal. In conjunction with the usage of the methods store() and remove(), it is possible to create and delete arbitrary files on the target system. The class is used by JBoss Web Server's web-console/jmx-console which by default is accessible from remote by unauthenticated users. During our research, it was possible to create and execute JSP-Files and to overwrite configuration files. The class may also be used by other JBoss Applications, thus making them vulnerable to the same attacks. Due to JBoss Web Server's missing default authentication enforcement, complete control of the application is also possible. Vendor Response: Red Hat has verified the flaw in the DeploymentFileRepository class of the JBoss application server. A remote attacker who is able to access the console manager could read or write to files with the permissions of the JBoss user. This could potentially lead to arbitrary code execution as the JBoss user (CVE-2006-5750). Please note that the JBoss console manager should always be secured prior to deployment. By default, the JBoss installer gives users the ability to password protect the console manager, limiting an attack using this vulnerability to authorised users. These steps can also be performed manually. http://wiki.jboss.org/wiki/Wiki.jsp?page=SecureJBoss Recommendation: This issue affected the JBoss Application Server. A patch for this issue is available: http://jira.jboss.com/jira/browse/ASPATCH-126 This issue affected Red Hat Application Stack. An updated jbossas package to correct this issue is available along with our advisory: https://rhn.redhat.com/errata/RHSA-2006-0743.html Common Vulnerabilities and Exposures (CVE) Information: The Common Vulnerabilities and Exposures (CVE) project has assigned the following names to these issues. These are candidates for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. CVE-2006-5750 Requested - -------Symantec Vulnerability Research Advisory Information------- For questions about this advisory, or to report an error: research@symantec.com For details on Symantec's Vulnerability Reporting Policy: http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf Symantec Vulnerability Research Advisory Archive: http://www.symantec.com/research/ Symantec Vulnerability Research GPG Key: http://www.symantec.com/research/Symantec_Vulnerability_Research_GPG.asc - -------------Symantec Product Advisory Information------------- To Report a Security Vulnerability in a Symantec Product: secure@symantec.com For general information on Symantec's Product Vulnerability reporting and response: http://www.symantec.com/security/ Symantec Product Advisory Archive: http://www.symantec.com/avcenter/security/SymantecAdvisories.html Symantec Product Advisory PGP Key: http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.asc - --------------------------------------------------------------- Copyright (c) 2006 by Symantec Corp. 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All other registered and unregistered trademarks represented in this document are the sole property of their respective companies/owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFayI7uk7IIFI45IARAmu4AJ0WotzDr8YAW1SgTwbeBFn9jOIUcwCg3VUe F1Bsjzx3lmSy6f8e5jABJlo= =zP1f -----END PGP SIGNATURE-----