Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 98.5%; technical severity is CVSS 9.8.
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.
Who should care
- Teams operating Java SE, Jdk, Jre +4 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Java SE, Jdk, Jre +4 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-284
- Affected versions
- Oracle Java SE; Oracle Jdk (Version: 1.7.0); Oracle Jre (Version: 1.7.0); Redhat Enterprise Linux Desktop (Version: 6.0); Redhat Enterprise Linux Eus (Version: 6.3); Redhat Enterprise Linux Server (Version: 6.0); Redhat Enterprise Linux Workstation (Version: 6.0)
- Published
- 27 August 2012
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 98.5%
- Signal calculated at 88
External references
- Government advisory from www.cisa.gov
- Third-party advisory from blog.fireeye.com
- Exploit information from immunityproducts.blogspot.com
- Technical reference from lists.opensuse.org
- Technical reference from lists.opensuse.org
- Third-party advisory from marc.info
- Third-party advisory from rhn.redhat.com
- Third-party advisory from www.deependresearch.org
- Vendor advisory from www.oracle.com
- Third-party advisory from www.securityfocus.com
- Government advisory from www.us-cert.gov
- Third-party advisory from community.rapid7.com