Issued:

2012-07-05

Updated:

2012-07-05

RHSA-2012:1056 - Moderate: resteasy security update

Synopsis

Moderate: resteasy security update

Type/Severity

Security Advisory Moderate

Topic

An update for JBoss Enterprise Application Platform 5.1.2 that fixes one security issue is now available from the Red Hat Customer Portal.

The Red Hat Security Response Team has rated this update as having moderate 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.

Description

RESTEasy provides various frameworks to help you build RESTful web services and RESTful Java applications.

It was found that RESTEasy was vulnerable to XML External Entity (XXE) attacks. If a remote attacker submitted a request containing an external XML entity to a RESTEasy endpoint, the entity would be resolved, allowing the attacker to read files accessible to the user running the application server. This flaw affected DOM (Document Object Model) Document and JAXB (Java Architecture for XML Binding) input. (CVE-2012-0818)

Note: The fix for CVE-2012-0818 is not enabled by default. This update adds a new configuration option to disable entity expansion in RESTEasy. If applications on your server expose RESTEasy XML endpoints, a resteasy.document.expand.entity.references configuration snippet must be added to their web.xml file to disable entity expansion in RESTEasy. Refer to Red Hat Bugzilla bug 785631 for details.

Warning: Before applying this update, 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 5.1.2 as provided from the Red Hat Customer Portal are advised to install this update.

Solution

The References section of this erratum contains a download link (you must log in to download the update).

The JBoss server process must be restarted for this update to take effect.

Affected Products

Fixes

• This content is not included.BZ - 785631

CVEs

• CVE-2011-5245
• CVE-2012-0818

References

• https://access.redhat.com/security/updates/classification/#moderate
• This content is not included.This content is not included.https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=appplatform&downloadType=securityPatches&version=5.1.2

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.