XXE vulnerability via user supplied XSLTs
CVE: CVE-2014-0096
Component: Tomcat/JBossWeb
CWE: CWE-611
Severity: Low
Release date: 2014-05-27T00:00:00+00:00

It was found that the org.apache.catalina.servlets.DefaultServlet implementation in JBoss Web / Apache Tomcat allowed the definition of XML External Entities (XXEs) in provided XSLTs. A malicious application could use this to circumvent intended security restrictions to disclose sensitive information.

Statement: This issue does affect JBossWeb as shipped in Red Hat JBoss Enterprise Application Platform 5. Red Hat Product Security has rated this issue as having Low security impact. Red Hat JBoss Enterprise Application Platform 5 is currently in reduced support phase (Phase 2: Maintenance Support), receiving only Critical and Important security updates, hence this issue is not currently planned to be addressed in future updates for  Red Hat Enterprise Application Platform 5. For additional information, refer to the Red Hat JBoss Middleware and Red Hat JBoss Operations Network Product Update and Support Policy: https://access.redhat.com/support/policy/updates/jboss_notes/ and the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Remediation:
Before applying this update, make sure all previously released errata
relevant to your system have been applied. Also, back up any customized Red
Hat JBoss Enterprise Application Platform 6 configuration files. On update,
the configuration files that have been locally modified will not be
updated. The updated version of such files will be stored as the rpmnew
files. Make sure to locate any such files after the update and merge any
changes manually.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied, and back up your existing Red
Hat JBoss Web Server installation (including all applications and
configuration files).

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied, and back up your existing Red
Hat JBoss Web Server installation (including all applications and
configuration files).

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended 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.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended 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.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing JBoss Data Grid installation.

The provided patch to fix CVE-2014-0058 also allows greater control over
which of the following components of web requests are captured in audit
logs:

- parameters
- cookies
- headers
- attributes

It is also possible to selectively mask some elements of headers,
parameters, cookies, and attributes using masks. This capability is
provided by two system properties, which are introduced by this patch:

1) org.jboss.security.web.audit

Description:
This property controls the granularity of the security auditing of web
requests.

Possible values:
off = Disables auditing of web requests
headers = Audits only the headers of web requests
cookies = Audits only the cookies of web requests
parameters = Audits only the parameters of web requests
attributes = Audits only the attributes of web requests
headers,cookies,parameters = Audits the headers, cookies, and parameters of
web requests
headers,cookies = Audits the headers and cookies of web requests

Default Value:
headers, parameters

Examples:
Setting "org.jboss.security.web.audit=off" disables security auditing of
web requests entirely.
Setting "org.jboss.security.web.audit=headers" enables security auditing of
only headers in web requests.

2) org.jboss.security.web.audit.mask

Description:
This property can be used to specify a list of strings to be matched
against headers, parameters, cookies, and attributes of web requests.
Any element matching the specified masks will be excluded from security
audit logging.

Possible values:
Any comma separated string indicating keys of headers, parameters, cookies,
and attributes.

Default Value:
j_password, authorization

Note that currently the matching of the masks is fuzzy rather than strict.
For example, a mask of "authorization" will mask both the header called
authorization and the parameter called "custom_authorization". A future
release may introduce strict masks.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss Data Virtualization installation (including its
databases, applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss Data Virtualization
server by stopping the JBoss Application Server process before installing
this update, and then after installing the update, restart the Red Hat
JBoss Data Virtualization server by starting the JBoss Application Server
process.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss Data Virtualization installation (including its
databases, applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss Data Virtualization
server by stopping the JBoss Application Server process before installing
this update, and then after installing the update, restart the Red Hat
JBoss Data Virtualization server by starting the JBoss Application Server
process.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing Red Hat JBoss Enterprise Application Platform installation and
deployed applications.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss Fuse Service Works installation (including its
databases, applications, configuration files, and so on).

Note that it is recommended to halt the Red Hat JBoss Fuse Service Works
server by stopping the JBoss Application Server process before installing
this update, and then after installing the update, restart the Red Hat
JBoss Fuse Service Works server by starting the JBoss Application
Server process.
All users of Red Hat JBoss Portal 6.1.1 as provided from the Red Hat
Customer Portal are advised to upgrade to Red Hat JBoss Portal 6.2.0.

The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up all
applications deployed on JBoss Enterprise Portal Platform, along with all
customized configuration files, and any databases and database settings.
The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, back up your
existing Red Hat JBoss Web Server installation (including all applications
and configuration files).