CVE-2012-4681

Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 98.5%

Published27 Aug 2012
Added to CISA KEV3 Mar 2022
Remediation due24 Mar 2022

Description

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 sun.awt.SunToolkit, then (2) using "reflection with a trusted immediate caller" to leverage the getField method to access and modify private fields, as exploited in the wild in August 2012 using Gondzz.class and Gondvv.class.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Oracle Jdk1.6.0 · 1.7.0

Oracle Jre1.6.0 · 1.7.0

Redhat Enterprise Linux Desktop6.0

Redhat Enterprise Linux Eus6.3

Redhat Enterprise Linux Server6.0

Redhat Enterprise Linux Workstation6.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

http://www.oracle.com/technetwork/topics/security/alert-cve-2012-4681-1835715.html

References

http://blog.fireeye.com/research/2012/08/zero-day-season-is-not-over-yet.htmlThird Party Advisory
http://immunityproducts.blogspot.com/2012/08/java-0day-analysis-cve-2012-4681.htmlExploitThird Party Advisory
http://labs.alienvault.com/labs/index.php/2012/new-java-0day-exploited-in-the-wild/Broken LinkExploit
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00032.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00016.htmlMailing List
http://marc.info/?l=bugtraq&m=135109152819176&w=2Issue TrackingMailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2012-1225.htmlThird Party Advisory
https://community.rapid7.com/community/metasploit/blog/2012/08/27/lets-start-the-week-with-a-new-java-0dayBroken LinkThird Party Advisory
http://secunia.com/advisories/51044Not Applicable
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4681US Government Resource

and 4 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2012-4681 being actively exploited?

Yes. CVE-2012-4681 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Mar 2022. It has been used in ransomware campaigns.

How severe is CVE-2012-4681?

CVE-2012-4681 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 98.5% probability of exploitation.

Which products are affected by CVE-2012-4681?

Affected products include Oracle Jdk, Oracle Jre, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server, and 1 more.

How do I fix CVE-2012-4681?

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-2012-4681 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.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.