CVE-2013-2423 — Red Hat
LOWCVE-2013-2423 is a low-severity (CVSS 3.7) CWE-284 vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-05-25) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK 7, allows remote attackers to affect integrity via unknown…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-05-25. Federal agencies were required to remediate by 2022-06-15.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2013-2423.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2013-2423 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK 7, allows remote attackers to affect integrity via unknown vectors related to HotSpot. NOTE: the previous information is from the April 2013 CPU. Oracle has not commented on claims from the original researcher that this vulnerability allows remote attackers to bypass permission checks by the MethodHandles method and modify arbitrary public final fields using reflection and type confusion, as demonstrated using integer and double fields to disable the security manager.
Affected Products
ubuntu linuxcanonicalopensuseopensusejreoracleResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Java Applet - Reflection Type Confusion Remote Code Execution (Metasploit)
by Metasploit · Apr 23, 2013
Detection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2013-2423 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Enterprise Linux 5 | java-1.7.0-openjdk-1:1.7.0.19-2.3.9.1.el5_9 | RHSA-2013:0752 |
| Red Hat Enterprise Linux 6 | java-1.7.0-openjdk-1:1.7.0.19-2.3.9.1.el6_4 | RHSA-2013:0751 |
| Supplementary for Red Hat Enterprise Linux 5 | java-1.7.0-oracle-1:1.7.0.21-1jpp.1.el5 | RHSA-2013:0757 |
| Supplementary for Red Hat Enterprise Linux 5 | java-1.7.0-ibm-1:1.7.0.4.2-1jpp.1.el5_9 | RHSA-2013:0822 |
Frequently Asked Questions
Is CVE-2013-2423 in your dependencies?
Find it across , including transitive dependencies.