CVE-2012-4681: Used in ransomware campaigns — CISA KEV
Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findCla
CISA KEV — Actively Exploited
Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow
Vendor / Product
— / Oracle / Java SE
CVSS / EPSS
10.0 CISA · EPSS 98.54%
01What CISA says about this vulnerability
Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findClass and leveraging an exception with the forName method to access restricted classes from arbitrary packages such as…
02Required action — verbatim from CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
03Notes & references
- blog.fireeye.com — http://blog.fireeye.com/research/2012/08/zero-day-season-is-not-over-yet.html
- immunityproducts.blogspot.com — http://immunityproducts.blogspot.com/2012/08/java-0day-analysis-cve-2012-4681.ht…
- labs.alienvault.com — http://labs.alienvault.com/labs/index.php/2012/new-java-0day-exploited-in-the-wi…
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00032.html
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00016.html
- marc.info — http://marc.info/?l=bugtraq&m=135109152819176&w=2
- rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-1225.html
- secunia.com — http://secunia.com/advisories/51044
- www.deependresearch.org — http://www.deependresearch.org/2012/08/java-7-vulnerability-analysis.html
- www.oracle.com — http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.ht…
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)
No structured affected-product list available — see references below for vendor advisories.
06Detection
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