National Cyber Awareness System

Vulnerability Summary for CVE-2013-0422

Overview

Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using the public getMBeanInstantiator method in the JmxMBeanServer class to obtain a reference to a private MBeanInstantiator object, then retrieving arbitrary Class references using the findClass method, and (2) using the Reflection API with recursion in a way that bypasses a security check by the java.lang.invoke.MethodHandles.Lookup.checkSecurityManager method due to the inability of the sun.reflect.Reflection.getCallerClass method to skip frames related to the new reflection API, as exploited in the wild in January 2013, as demonstrated by Blackhole and Nuclear Pack, and a different vulnerability than CVE-2012-4681 and CVE-2012-3174. NOTE: some parties have mapped the recursive Reflection API issue to CVE-2012-3174, but CVE-2012-3174 is for a different vulnerability whose details are not public as of 20130114. CVE-2013-0422 covers both the JMX/MBean and Reflection API issues. NOTE: it was originally reported that Java 6 was also vulnerable, but the reporter has retracted this claim, stating that Java 6 is not exploitable because the relevant code is called in a way that does not bypass security checks. NOTE: as of 20130114, a reliable third party has claimed that the findClass/MBeanInstantiator vector was not fixed in Oracle Java 7 Update 11. If there is still a vulnerable condition, then a separate CVE identifier might be created for the unfixed issue.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Technical Alert: TA13-010A

Name: TA13-010A

Hyperlink:http://www.us-cert.gov/cas/techalerts/TA13-010A.html

US-CERT Vulnerability Note: VU#625617

Name: VU#625617

Hyperlink:http://www.kb.cert.org/vuls/id/625617

External Source: MISC

Name: https://www-304.ibm.com/connections/blogs/PSIRT/entry/oracle_java_7_security_manager_bypass_vulnerability_cve_2013_04224?lang=en_us

Hyperlink:https://www-304.ibm.com/connections/blogs/PSIRT/entry/oracle_java_7_security_manager_bypass_vulnerability_cve_2013_04224?lang=en_us

External Source: MISC

Name: https://threatpost.com/en_us/blogs/nasty-new-java-zero-day-found-exploit-kits-already-have-it-011013

Hyperlink:https://threatpost.com/en_us/blogs/nasty-new-java-zero-day-found-exploit-kits-already-have-it-011013

External Source: MISC

Name: https://partners.immunityinc.com/idocs/Java%20MBeanInstantiator.findClass%200day%20Analysis.pdf

Hyperlink:https://partners.immunityinc.com/idocs/Java%20MBeanInstantiator.findClass%200day%20Analysis.pdf

External Source: UBUNTU

Name: USN-1693-1

Hyperlink:http://www.ubuntu.com/usn/USN-1693-1

External Source: CONFIRM

Name: http://www.oracle.com/technetwork/topics/security/alert-cve-2013-0422-1896849.html

Hyperlink:http://www.oracle.com/technetwork/topics/security/alert-cve-2013-0422-1896849.html

External Source: BUGTRAQ

Name: 20130110 [SE-2012-01] 'Fix' for Issue 32 exploited by new Java 0-day code

Hyperlink:http://seclists.org/bugtraq/2013/Jan/48

External Source: REDHAT

Name: RHSA-2013:0165

Hyperlink:http://rhn.redhat.com/errata/RHSA-2013-0165.html

External Source: REDHAT

Name: RHSA-2013:0156

Hyperlink:http://rhn.redhat.com/errata/RHSA-2013-0156.html

External Source: MISC

Name: http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html

Hyperlink:http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html

External Source: SUSE

Name: openSUSE-SU-2013:0199

Hyperlink:http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00025.html

External Source: MISC

Name: http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/

Hyperlink:http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/

External Source: MISC

Name: http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/

Hyperlink:http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/

External Source: MISC

Name: http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two.html

Hyperlink:http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two.html

External Source: MISC

Name: http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.html

Hyperlink:http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.html