Topic

An update for eap7-jboss-ec2-eap is now available for Red Hat JBoss Enterprise Application Platform 7.1 for Red Hat Enterprise Linux 6 and Red Hat JBoss Enterprise Application Platform 7.1 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The eap7-jboss-ec2-eap packages provide scripts for Red Hat JBoss Enterprise Application Platform running on the Amazon Web Services (AWS) Elastic Compute Cloud (EC2).

With this update, the eap7-jboss-ec2-eap package has been updated to ensure compatibility with Red Hat JBoss Enterprise Application Platform 7.1.

Refer to the JBoss Enterprise Application Platform 7.1 Release Notes, linked to in the References section, for information on the most significant bug fixes and enhancements included in this release.

Security Fix(es):

• A Denial of Service can be caused when a long request is sent to EAP 7. (CVE-2016-7046)
• The jboss init script unsafe file handling resulting in local privilege escalation. (CVE-2016-8656)
• A deserialization vulnerability via readValue method of ObjectMapper which allows arbitrary code execution. (CVE-2017-7525)
• JMSObjectMessage deserializes potentially malicious objects allowing Remote Code Execution. (CVE-2016-4978)
• Undertow is vulnerable to the injection of arbitrary HTTP headers, and also response splitting. (CVE-2016-4993)
• The domain controller will not propagate its administrative RBAC configuration to some slaves leading to escalate their privileges. (CVE-2016-5406)
• Internal IP address disclosed on redirect when request header Host field is not set. (CVE-2016-6311)
• Potential EAP resource starvation DOS attack via GET requests for server log files. (CVE-2016-8627)
• Inefficient Header Cache could cause denial of service. (CVE-2016-9589)
• The log file viewer allows arbitrary file read to authenticated user via path traversal. (CVE-2017-2595)
• HTTP Request smuggling vulnerability due to permitting invalid characters in HTTP requests. (CVE-2017-2666)
• Websocket non clean close can cause IO thread to get stuck in a loop. (CVE-2017-2670)
• Privilege escalation with security manager's reflective permissions when granted to Hibernate Validator. (CVE-2017-7536)
• Potential http request smuggling as Undertow parses the http headers with unusual whitespaces. (CVE-2017-7559)
• Properties based files of the management and the application realm are world readable allowing access to users and roles information to all the users logged in to the system. (CVE-2017-12167)
• RBAC configuration allows users with a Monitor role to view the sensitive information. (CVE-2016-7061)
• Improper whitespace parsing leading to potential HTTP request smuggling. (CVE-2017-12165)

Red Hat would like to thank Liao Xinxi (NSFOCUS) for reporting CVE-2017-7525; Calum Hutton (NCC Group) and Mikhail Egorov (Odin) for reporting CVE-2016-4993; Luca Bueti for reporting CVE-2016-6311; Gabriel Lavoie (Halogen Software) for reporting CVE-2016-9589; and Gregory Ramsperger and Ryan Moak for reporting CVE-2017-2670. The CVE-2016-5406 issue was discovered by Tomaz Cerar (Red Hat); the CVE-2016-8627 issue was discovered by Darran Lofthouse (Red Hat) and Brian Stansberry (Red Hat); the CVE-2017-2666 issue was discovered by Radim Hatlapatka (Red Hat); the CVE-2017-7536 issue was discovered by Gunnar Morling (Red Hat); the CVE-2017-7559 and CVE-2017-12165 issues were discovered by Stuart Douglas (Red Hat); and the CVE-2017-12167 issue was discovered by Brian Stansberry (Red Hat) and Jeremy Choi (Red Hat). Upstream acknowledges WildFly as the original reporter of CVE-2016-6311.

Solution

Before applying this update, back up your existing Red Hat JBoss Enterprise Application Platform installation and deployed applications.

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• JBoss Enterprise Application Platform 7.1 for RHEL 7 x86_64
• JBoss Enterprise Application Platform 7.1 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 7.1 for RHEL 6 i386

Fixes

• BZ - 1344321 - CVE-2016-4993 eap: HTTP header injection / response splitting
• BZ - 1359014 - CVE-2016-5406 EAP7 Privilege escalation when managing domain including earlier version slaves
• BZ - 1362735 - CVE-2016-6311 (EAP7) Internal IP address disclosed on redirect when request header Host field is not set
• BZ - 1376646 - CVE-2016-7046 undertow: Long URL proxy request lead to java.nio.BufferOverflowException and DoS
• BZ - 1379207 - CVE-2016-4978 Apache ActiveMQ Artemis: Deserialization of untrusted input vulnerability
• BZ - 1380852 - CVE-2016-7061 EAP: Sensitive data can be exposed at the server level in domain mode
• BZ - 1388240 - CVE-2016-8627 Potential EAP resource starvation DOS attack via GET requests for server log files
• BZ - 1400344 - CVE-2016-8656 jboss: jbossas: unsafe chown of server.log in jboss init script allows privilege escalation
• BZ - 1404782 - CVE-2016-9589 wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage
• BZ - 1413028 - CVE-2017-2595 wildfly: Arbitrary file read via path traversal
• BZ - 1436163 - CVE-2017-2666 undertow: HTTP Request smuggling vulnerability due to permitting invalid characters in HTTP requests
• BZ - 1438885 - CVE-2017-2670 undertow: IO thread DoS via unclean Websocket closing
• BZ - 1462702 - CVE-2017-7525 jackson-databind: Deserialization vulnerability via readValue method of ObjectMapper
• BZ - 1465573 - CVE-2017-7536 hibernate-validator: Privilege escalation when running under the security manager
• BZ - 1481665 - CVE-2017-7559 undertow: HTTP Request smuggling vulnerability (incomplete fix of CVE-2017-2666)
• BZ - 1490301 - CVE-2017-12165 undertow: improper whitespace parsing leading to potential HTTP request smuggling
• BZ - 1491612 - CVE-2017-12167 EAP-7: Wrong privileges on multiple property files

CVEs

• CVE-2016-4978
• CVE-2016-4993
• CVE-2016-5406
• CVE-2016-6311
• CVE-2016-7046
• CVE-2016-7061
• CVE-2016-8627
• CVE-2016-8656
• CVE-2016-9589
• CVE-2017-2595
• CVE-2017-2666
• CVE-2017-2670
• CVE-2017-7525
• CVE-2017-7536
• CVE-2017-7559
• CVE-2017-12165
• CVE-2017-12167

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/documentation/en/jboss-enterprise-application-platform/