Bug 1328210 (CVE-2016-3427)
| Summary: | CVE-2016-3427 OpenJDK: unrestricted deserialization of authentication credentials (JMX, 8144430) | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Tomas Hoger <thoger> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | unspecified | CC: | dbhole, jvanek, security-response-team |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
It was discovered that the RMI server implementation in the JMX component in OpenJDK did not restrict which classes can be deserialized when deserializing authentication credentials. A remote, unauthenticated attacker able to connect to a JMX port could possibly use this flaw to trigger deserialization flaws.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-05-11 15:53:55 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1324915 | ||
|
Description
Tomas Hoger
2016-04-18 17:55:21 UTC
Related note in Oracle JDK release notes:
New attribute for JMX RMI JRMP servers specifies a list of class names to
use when deserializing server credentials
A new java attribute has been defined for the environment to allow a JMX
RMI JRMP server to specify a list of class names. These names correspond
to the closure of class names that are expected by the server when
deserializing credentials. For instance, if the expected credentials were
a List<string>, then the closure would constitute all the concrete classes
that should be expected in the serial form of a list of Strings.
By default, this attribute is used only by the default agent with the
following:
{
"[Ljava.lang.String;",
"java.lang.String"
}
Only arrays of Strings and Strings will be accepted when deserializing the
credentials.
The attribute name is:
"jmx.remote.rmi.server.credential.types"
The following is an example of a user starting a server with the specified
credentials class names:
Map<String, Object> env = new HashMap<>(1);
env.put (
"jmx.remote.rmi.server.credential.types",
new String[]{
String[].class.getName(),
String.class.getName()
}
);
JMXConnectorServer server
= JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbeanServer);
The new feature should be used by directly specifying:
"jmx.remote.rmi.server.credential.types"
JDK-8144430 (not public)
http://www.oracle.com/technetwork/java/javase/8u91-relnotes-2949462.html
http://www.oracle.com/technetwork/java/javaseproducts/documentation/javase7supportreleasenotes-1601161.html#R170_101
http://www.oracle.com/technetwork/java/javase/documentation/overview-156328.html#R160_115
Public now via Oracle Critical Patch Update - April 2016. Fixed in Oracle Java SE 6u115, 7u101, and 8u91. External References: http://www.oracle.com/technetwork/topics/security/cpuapr2016-2881694.html#AppendixJAVA This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2016:0651 https://rhn.redhat.com/errata/RHSA-2016-0651.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:0650 https://rhn.redhat.com/errata/RHSA-2016-0650.html This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 7 Via RHSA-2016:0676 https://rhn.redhat.com/errata/RHSA-2016-0676.html This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 6 Oracle Java for Red Hat Enterprise Linux 7 Via RHSA-2016:0677 https://rhn.redhat.com/errata/RHSA-2016-0677.html This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2016:0675 https://rhn.redhat.com/errata/RHSA-2016-0675.html This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 7 Oracle Java for Red Hat Enterprise Linux 5 Oracle Java for Red Hat Enterprise Linux 6 Via RHSA-2016:0679 https://rhn.redhat.com/errata/RHSA-2016-0679.html This issue has been addressed in the following products: Oracle Java for Red Hat Enterprise Linux 5 Oracle Java for Red Hat Enterprise Linux 6 Oracle Java for Red Hat Enterprise Linux 7 Via RHSA-2016:0678 https://rhn.redhat.com/errata/RHSA-2016-0678.html OpenJDK8 upstream commit: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/32f64c19b5fb This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Supplementary Red Hat Enterprise Linux 6 Supplementary Via RHSA-2016:0701 https://rhn.redhat.com/errata/RHSA-2016-0701.html This issue has been addressed in the following products: Red Hat Enterprise Linux 5 Supplementary Via RHSA-2016:0702 https://rhn.redhat.com/errata/RHSA-2016-0702.html This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Supplementary Red Hat Enterprise Linux 5 Supplementary Via RHSA-2016:0708 https://rhn.redhat.com/errata/RHSA-2016-0708.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Supplementary Via RHSA-2016:0716 https://rhn.redhat.com/errata/RHSA-2016-0716.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2016:0723 https://rhn.redhat.com/errata/RHSA-2016-0723.html This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Supplementary Via RHSA-2016:1039 https://rhn.redhat.com/errata/RHSA-2016-1039.html This issue has been addressed in the following products: Red Hat Satellite 5.6 Red Hat Satellite 5.7 Via RHSA-2016:1430 https://access.redhat.com/errata/RHSA-2016:1430 This issue has been addressed in the following products: Red Hat Satellite 5.6 Red Hat Satellite 5.7 Via RHSA-2017:1216 https://access.redhat.com/errata/RHSA-2017:1216 |