Bug 952387 (CVE-2013-1537)

Summary:	CVE-2013-1537 OpenJDK: remote code loading enabled by default (RMI, 8001040)
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:	icedtea6 1.11.10, icedtea6 1.12.5, icedtea7 2.3.9	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-02 15:37:08 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:	950067

Description Tomas Hoger 2013-04-15 20:33:09 UTC

RMI implementation in OpenJDK uses property java.rmi.server.useCodebaseOnly, which controls whether automatic loading of classes from other sources than local CLASSPATH and location specified in the java.rmi.server.codebase property is permitted.  This property previously defaulted to false, allowing dynamic class downloading.  This could allow an attacker to make RMI server or registry to execute arbitrary untrusted code.

It was demonstrated that this can be used in combination with another Java sandbox bypass flaw to execute code in the remote rmiregistry or GlassFish Server:

http://seclists.org/fulldisclosure/2013/Feb/18
http://www.security-explorations.com/en/SE-2012-01-details.html
http://www.security-explorations.com/materials/se-2012-01-rmi.zip

This update changes the default value of the java.rmi.server.useCodebaseOnly property to true.

More details on various RMI properties can be found in:

http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/javarmiproperties.html

Comment 1 Tomas Hoger 2013-04-16 20:53:59 UTC

Public now via Oracle Java SE CPU April 2014:

http://www.oracle.com/technetwork/topics/security/javacpuapr2013-1928497.html

Fixed in Oracle Java SE 7u21 and 6u45.

Comment 2 Tomas Hoger 2013-04-17 11:43:57 UTC

This change is explicitly noted in the release notes:

http://www.oracle.com/technetwork/java/javase/7u21-relnotes-1932873.html#rmichanges

  From this release, the RMI property java.rmi.server.useCodebaseOnly is set
  to true by default. In previous releases the default value was false.

  This change of default value may cause RMI-based applications to break
  unexpectedly. The typical symptom is a stack trace that contains a
  java.rmi.UnmarshalException containing a nested
  java.lang.ClassNotFoundException.

  For more information, see RMI Enhancements.

Additional details are covered by the following "RMI Enhancements" document:

http://docs.oracle.com/javase/7/docs/technotes/guides/rmi/enhancements-7.html

Comment 3 Tomas Hoger 2013-04-17 14:32:02 UTC

Upstream commit, as included in IcedTea7 repositories:

http://icedtea.classpath.org/hg/release/icedtea7-forest-2.3/jdk/rev/096ed306159f

Comment 4 Tomas Hoger 2013-04-17 17:00:19 UTC

OpenJDK7 upstream repositories commit:

http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/f098e2297ff1

Comment 5 errata-xmlrpc 2013-04-17 18:45:26 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:0752 https://rhn.redhat.com/errata/RHSA-2013-0752.html

Comment 6 errata-xmlrpc 2013-04-17 18:47:45 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0751 https://rhn.redhat.com/errata/RHSA-2013-0751.html

Comment 7 errata-xmlrpc 2013-04-18 18:25:37 UTC

This issue has been addressed in following products:

  Supplementary for Red Hat Enterprise Linux 6
  Supplementary for Red Hat Enterprise Linux 5

Via RHSA-2013:0758 https://rhn.redhat.com/errata/RHSA-2013-0758.html

Comment 8 errata-xmlrpc 2013-04-18 18:28:02 UTC

This issue has been addressed in following products:

  Supplementary for Red Hat Enterprise Linux 5
  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2013:0757 https://rhn.redhat.com/errata/RHSA-2013-0757.html

Comment 9 errata-xmlrpc 2013-04-24 17:59:23 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2013:0770 https://rhn.redhat.com/errata/RHSA-2013-0770.html

Comment 10 Tomas Hoger 2013-04-26 12:18:24 UTC

Fixed in IcedTea6 versions 1.11.10 and 1.12.5, and IcedTea7 version 2.3.9:

http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022796.html
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022890.html
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022985.html

Comment 11 errata-xmlrpc 2013-05-14 17:59:25 UTC

This issue has been addressed in following products:

  Supplementary for Red Hat Enterprise Linux 5
  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2013:0823 https://rhn.redhat.com/errata/RHSA-2013-0823.html

Comment 12 errata-xmlrpc 2013-05-14 18:03:37 UTC

This issue has been addressed in following products:

  Supplementary for Red Hat Enterprise Linux 5
  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2013:0822 https://rhn.redhat.com/errata/RHSA-2013-0822.html

Comment 13 errata-xmlrpc 2013-05-22 18:43:55 UTC

This issue has been addressed in following products:

  Supplementary for Red Hat Enterprise Linux 5
  Supplementary for Red Hat Enterprise Linux 6

Via RHSA-2013:0855 https://rhn.redhat.com/errata/RHSA-2013-0855.html

Comment 14 errata-xmlrpc 2013-10-23 16:40:11 UTC

This issue has been addressed in following products:

  Red Hat Network Satellite Server v 5.5

Via RHSA-2013:1456 https://rhn.redhat.com/errata/RHSA-2013-1456.html

Comment 15 errata-xmlrpc 2013-10-23 16:51:24 UTC

This issue has been addressed in following products:

  Red Hat Network Satellite Server v 5.4

Via RHSA-2013:1455 https://rhn.redhat.com/errata/RHSA-2013-1455.html