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Last updated: 8/21/2014 12:17:54 AM

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Vulnerability Summary for CVE-2013-0422

Original release date: 01/10/2013
Last revised: 02/20/2014
Source: US-CERT/NIST

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 v2 Base Score: 10.0 (HIGH) (AV:N/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
Per: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html 'Note: JDK and JRE 6, 5.0 and 1.4.2, and Java SE Embedded JRE releases are not affected.'

References to Advisories, Solutions, and Tools

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External Source: MISC
Name: http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/
US-CERT Vulnerability Note: CERT
Name: TA13-010A
US-CERT Vulnerability Note: CERT-VN
Name: VU#625617
External Source: UBUNTU
Name: USN-1693-1
External Source: MISC
Name: http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html
External Source: MISC
Name: http://blog.fuseyism.com/index.php/2013/01/15/security-icedtea-2-1-4-2-2-4-2-3-4-released/
External Source: MISC
Name: http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/
External Source: MANDRIVA
Name: MDVSA-2013:095
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
External Source: SUSE
Name: openSUSE-SU-2013:0199
External Source: MISC
Name: http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two.html
External Source: MISC
Name: https://threatpost.com/en_us/blogs/nasty-new-java-zero-day-found-exploit-kits-already-have-it-011013
External Source: MISC
Name: http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.html
External Source: CONFIRM
Name: https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0018
External Source: REDHAT
Name: RHSA-2013:0165
External Source: CONFIRM
Name: 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
External Source: MISC
Name: https://partners.immunityinc.com/idocs/Java%20MBeanInstantiator.findClass%200day%20Analysis.pdf
External Source: REDHAT
Name: RHSA-2013:0156

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)