National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2013-0422 Detail

Current Description

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.

Source:  MITRE      Last Modified:  01/10/2013      View Analysis Description

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


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:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable - Victim must voluntarily interact with attack mechanism
Access Complexity:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Evaluator Impact

Per: '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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Hyperlink Resource Type Source Name External Source MISC External Source MISC External Source MISC External Source MISC External Source MISC External Source SUSE openSUSE-SU-2013:0199 External Source MISC External Source REDHAT RHSA-2013:0156 External Source REDHAT RHSA-2013:0165 External Source BUGTRAQ 20130110 [SE-2012-01] 'Fix' for Issue 32 exploited by new Java 0-day code US Government Resource External Source CERT-VN VU#625617 External Source MANDRIVA MDVSA-2013:095 External Source CONFIRM External Source UBUNTU USN-1693-1 US Government Resource External Source CERT TA13-010A External Source MISC External Source MISC External Source CONFIRM External Source MISC

Technical Details

Vulnerability Type (View All)

  • Permissions, Privileges, and Access Control (CWE-264)

Change History 1 change record found - show changes