jboss-seam.jar in the JBoss Seam 2 framework 2.2.x and earlier, as distributed in Red Hat JBoss Enterprise SOA Platform 4.3.0.CP05 and 5.1.0; JBoss Enterprise Application Platform (aka JBoss EAP or JBEAP) 4.3.0, 4.3.0.CP09, and 5.1.1; and JBoss Enterprise Web Platform 5.1.1, does not properly restrict use of Expression Language (EL) statements in FacesMessages during page exception handling, which allows remote attackers to execute arbitrary Java code via a crafted URL to an application. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1484.

The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:0945 advisory.

  - JBoss Seam EL interpolation in exception handling (CVE-2011-2196)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Updated jboss-seam2 packages that fix one security issue are now available for JBoss Enterprise Application Platform 4.3 for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

The JBoss Seam 2 framework is an application framework for building web applications in Java.

It was found that the fix for CVE-2011-1484 was incomplete: JBoss Seam 2 did not block access to all malicious JBoss Expression Language (EL) constructs in page exception handling, allowing arbitrary Java methods to be executed. A remote attacker could use this flaw to execute arbitrary code via a specially crafted URL provided to certain applications based on the JBoss Seam 2 framework. Note: A properly configured and enabled Java Security Manager would prevent exploitation of this flaw. (CVE-2011-2196)

Red Hat would like to thank the ObjectWorks+ Development Team at Nomura Research Institute for reporting this issue.

Users of jboss-seam2 should upgrade to these updated packages, which correct this issue. Manual action is required for this update to take effect. Refer to the Solution section for details.

Updated JBoss Enterprise Application Platform 5.1.1 packages that fix one security issue and various bugs are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

JBoss Enterprise Application Platform is the market-leading platform for innovative and scalable Java applications. JBoss Enterprise Application Platform integrates the JBoss Application Server with JBoss Hibernate and JBoss Seam into a complete and simple enterprise solution.

This JBoss Enterprise Application Platform 5.1.1 release for Red Hat Enterprise Linux 5 serves as a replacement for JBoss Enterprise Application Platform 5.1.0.

These updated packages include the bug fixes detailed in the release notes, which are linked to from the References section of this erratum.

The following security issue is also fixed with this release :

It was found that the fix for CVE-2011-1484 was incomplete: JBoss Seam 2 did not block access to all malicious JBoss Expression Language (EL) constructs in page exception handling, allowing arbitrary Java methods to be executed. A remote attacker could use this flaw to execute arbitrary code via a specially crafted URL provided to certain applications based on the JBoss Seam 2 framework. Note: A properly configured and enabled Java Security Manager would prevent exploitation of this flaw. (CVE-2011-2196)

Red Hat would like to thank the ObjectWorks+ Development Team at Nomura Research Institute for reporting this issue.

Warning: Before applying this update, please back up your JBoss Enterprise Application Platform's 'jboss-as/server/[PROFILE]/deploy/' directory, along with all other customized configuration files.

All users of JBoss Enterprise Application Platform 5.1.0 on Red Hat Enterprise Linux 5 are advised to upgrade to these updated packages.
Manual action is required for this update to take effect. Refer to the Solution section for details.

Updated JBoss Enterprise Application Platform 5.1.1 packages that fix one security issue and various bugs are now available for Red Hat Enterprise Linux 4.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

JBoss Enterprise Application Platform is the market-leading platform for innovative and scalable Java applications. JBoss Enterprise Application Platform integrates the JBoss Application Server with JBoss Hibernate and JBoss Seam into a complete and simple enterprise solution.

This JBoss Enterprise Application Platform 5.1.1 release for Red Hat Enterprise Linux 4 serves as a replacement for JBoss Enterprise Application Platform 5.1.0.

These updated packages include the bug fixes detailed in the release notes, which are linked to from the References section of this erratum.

The following security issue is also fixed with this release :

It was found that the fix for CVE-2011-1484 was incomplete: JBoss Seam 2 did not block access to all malicious JBoss Expression Language (EL) constructs in page exception handling, allowing arbitrary Java methods to be executed. A remote attacker could use this flaw to execute arbitrary code via a specially crafted URL provided to certain applications based on the JBoss Seam 2 framework. Note: A properly configured and enabled Java Security Manager would prevent exploitation of this flaw. (CVE-2011-2196)

Red Hat would like to thank the ObjectWorks+ Development Team at Nomura Research Institute for reporting this issue.

Warning: Before applying this update, please back up your JBoss Enterprise Application Platform's 'jboss-as/server/[PROFILE]/deploy/' directory, along with all other customized configuration files.

All users of JBoss Enterprise Application Platform 5.1.0 on Red Hat Enterprise Linux 4 are advised to upgrade to these updated packages.
Manual action is required for this update to take effect. Refer to the Solution section for details.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:0946 advisory.

    JBoss Enterprise Application Platform is the market-leading platform for     innovative and scalable Java applications. JBoss Enterprise Application     Platform integrates the JBoss Application Server with JBoss Hibernate and     JBoss Seam into a complete and simple enterprise solution.

    This JBoss Enterprise Application Platform 5.1.1 release for Red Hat     Enterprise Linux 6 serves as a replacement for JBoss Enterprise Application     Platform 5.1.0.

    These updated packages include the bug fixes detailed in the release notes,     which are linked to from the References section of this erratum.

    The following security issue is also fixed with this release:

    It was found that the fix for CVE-2011-1484 was incomplete: JBoss Seam 2     did not block access to all malicious JBoss Expression Language (EL)     constructs in page exception handling, allowing arbitrary Java methods to     be executed. A remote attacker could use this flaw to execute arbitrary     code via a specially-crafted URL provided to certain applications based on     the JBoss Seam 2 framework. Note: A properly configured and enabled Java     Security Manager would prevent exploitation of this flaw. (CVE-2011-2196)

    Red Hat would like to thank the ObjectWorks+ Development Team at Nomura     Research Institute for reporting this issue.

    Warning: Before applying this update, please back up your JBoss Enterprise     Application Platform's jboss-as/server/[PROFILE]/deploy/ directory, along     with all other customized configuration files.

    All users of JBoss Enterprise Application Platform 5.1.0 on Red Hat     Enterprise Linux 6 are advised to upgrade to these updated packages. Manual     action is required for this update to take effect. Refer to the Solution     section for details.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
193978	RHEL 5 / 6 : JBoss Enterprise Web Platform 5.1.1 update (Important) (RHSA-2011:0945)	Nessus	Red Hat Local Security Checks	high
63991	RHEL 4 / 5 : jboss-seam2 (RHSA-2011:0950)	Nessus	Red Hat Local Security Checks	medium
63990	RHEL 5 : JBoss EAP (RHSA-2011:0948)	Nessus	Red Hat Local Security Checks	medium
63989	RHEL 4 : JBoss EAP (RHSA-2011:0947)	Nessus	Red Hat Local Security Checks	medium
63988	RHEL 6 : JBoss Enterprise Application Platform 5.1.1 update (Important) (RHSA-2011:0946)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2011-2196

high

Tenable Plugins

high

medium

medium

medium

high