CVE-2013-0422 on CISA KEV

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

01What CISA says about this vulnerability

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…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2013-0156.html
• malware.dontneedcoffee.com — http://malware.dontneedcoffee.com/2013/01/0-day-17u10-spotted-in-while-disable.h…
• www.mandriva.com — http://www.mandriva.com/security/advisories?name=MDVSA-2013:095
• blog.fuseyism.com — http://blog.fuseyism.com/index.php/2013/01/15/security-icedtea-2-1-4-2-2-4-2-3-4…
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00025.html
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2013-0165.html
• www.kb.cert.org — http://www.kb.cert.org/vuls/id/625617
• www.us-cert.gov — http://www.us-cert.gov/cas/techalerts/TA13-010A.html
• partners.immunityinc.com — https://partners.immunityinc.com/idocs/Java%20MBeanInstantiator.findClass%200day…
• blog.fireeye.com — http://blog.fireeye.com/research/2013/01/happy-new-year-from-new-java-zero-day.h…
• www-304.ibm.com — https://www-304.ibm.com/connections/blogs/PSIRT/entry/oracle_java_7_security_man…
• www.ubuntu.com — http://www.ubuntu.com/usn/USN-1693-1
• wiki.mageia.org — https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0018
• immunityproducts.blogspot.ca — http://immunityproducts.blogspot.ca/2013/01/confirmed-java-only-fixed-one-of-two…
• threatpost.com — https://threatpost.com/en_us/blogs/nasty-new-java-zero-day-found-exploit-kits-al…
• seclists.org — http://seclists.org/bugtraq/2013/Jan/48
• www.oracle.com — http://www.oracle.com/technetwork/topics/security/alert-cve-2013-0422-1896849.ht…
• krebsonsecurity.com — http://krebsonsecurity.com/2013/01/zero-day-java-exploit-debuts-in-crimeware/
• labs.alienvault.com — http://labs.alienvault.com/labs/index.php/2013/new-year-new-java-zeroday/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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