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CVE-2012-4681

Oracle — Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution Vulnerability

Oracle · CWE-284 · in CISA KEV since 2022-03-03

ExigentKEV since 2022 · listed over a yearRansomwareCISA KEVActively Exploited
93

EVRS 93 of 100 Immediate

Out-of-Band / Urgent Remediation

Rank 80 of 2,960 tracked

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Why it scores 93

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and associated with known ransomware campaigns.

  • CISA KEVApplied
  • RansomwareApplied
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

No fixed version identified yet

CISA required action

Affected versions

  • jdk1.6.01.7.0
  • jre1.6.01.7.0
  • enterprise linux desktop6.0
  • enterprise linux eus6.3
  • enterprise linux server6.0
  • enterprise linux workstation6.0

Remediation

Apply updates per vendor instructions.

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 9.8 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.985 (99.92nd pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Known CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-03-24 · KEV since 2022 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 9.8 (v3.1), assigned by mitre. Listed ENISA EUVD

Description

NVD

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.

What CISA says to do

Public module

Metasploit lists a public excellent-rank module for this CVE: Java 7 Applet Remote Code Execution (multi/browser/java_jre17_exec). A module existing is not the same as active exploitation; see metasploit.com.