RHSA-2017:0250 - Security Advisory

Topic

An update for jboss-ec2-eap is now available for Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6.

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

With this update, the jboss-ec2-eap package has been updated to ensure compatibility with Red Hat JBoss Enterprise Application Platform 6.4.12.

Security Fix(es):

• It was discovered that the jboss init script performed unsafe file handling which could result in local privilege escalation. (CVE-2016-8656)
• It was discovered that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own. (CVE-2016-6816)
• An EAP feature to download server log files allows logs to be available via GET requests making them vulnerable to cross-origin attacks. An attacker could trigger the user's browser to request the log files consuming enough resources that normal server functioning could be impaired. (CVE-2016-8627)
• It was discovered that when configuring RBAC and marking information as sensitive, users with a Monitor role are able to view the sensitive information. (CVE-2016-7061)

The CVE-2016-8627 issue was discovered by Darran Lofthouse and Brian Stansberry (Red Hat).

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 6.4 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6.4 for RHEL 6 i386
• JBoss Enterprise Application Platform 6 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6 for RHEL 6 i386

Fixes

• 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 - 1397484 - CVE-2016-6816 tomcat: HTTP Request smuggling vulnerability due to permitting invalid character in HTTP requests
• BZ - 1400344 - CVE-2016-8656 jboss: jbossas: unsafe chown of server.log in jboss init script allows privilege escalation

CVEs

• CVE-2016-6816
• CVE-2016-7061
• CVE-2016-8627
• CVE-2016-8656

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/