CVE-2013-0422
Oracle JRE Remote Code Execution
- Published10 Jan 2013
- Added to CISA KEV25 May 2022
- Remediation due15 Jun 2022
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAffected products
Remediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
- http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.html
- http://blog.fuseyism.com/index.php/2013/01/15/security-icedtea-2-1-4-2-2-4-2-3-4-released/
- http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two.html
- http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/
- http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00025.html
- http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.html
- http://rhn.redhat.com/errata/RHSA-2013-0156.html
- http://rhn.redhat.com/errata/RHSA-2013-0165.html
- http://seclists.org/bugtraq/2013/Jan/48
and 10 more references
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2013-0422 being actively exploited?
Yes. CVE-2013-0422 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 25 May 2022. It has been used in ransomware campaigns.
How severe is CVE-2013-0422?
CVE-2013-0422 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 97.0% probability of exploitation.
Which products are affected by CVE-2013-0422?
Affected products include Oracle Jdk, Oracle Jre, Canonical Ubuntu Linux, Opensuse.
How do I fix CVE-2013-0422?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2013-0422 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.