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Fencer Intel
critical 9.8

CVE-2017-12149 kev+ ransomware in the critical feed json

In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadO…

published 2017-10-04 9 y ago modified 2026-10-07 33 d ago also EUVD-2017-3733

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2021-12-10, used in ransomware
epss
90.7%
EPSS 90.7% chance of exploitation in 30 days, percentile 99.8%
public exploits
1
Metasploit, plus a Nuclei check

Summary

In Jboss Application Server as shipped with Red Hat Enterprise Application Platform 5.2, it was found that the doFilter method in the ReadOnlyAccessFilter of the HTTP Invoker does not restrict classes for which it performs deserialization and thus allowing an attacker to execute arbitrary code via crafted serialized data.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • jbossas jboss enterprise application platform 5 5.2.0-24.ep5.el5
  • jbossas jboss enterprise application platform 5 5.2.0-24.ep5.el6
  • jbossas-client jboss enterprise application platform 5 5.2.0-24.ep5.el5
  • jbossas-client jboss enterprise application platform 5 5.2.0-24.ep5.el6
  • jbossas-messaging jboss enterprise application platform 5 5.2.0-24.ep5.el5
  • jbossas-messaging jboss enterprise application platform 5 5.2.0-24.ep5.el6
  • jbossas-ws-native jboss enterprise application platform 5 5.2.0-24.ep5.el5
  • jbossas-ws-native jboss enterprise application platform 5 5.2.0-24.ep5.el6

red hat advisories RHSA-2018:1607

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-12149 updated cvss 9.8

jbossas: Arbitrary code execution via unrestricted deserialization in ReadOnlyAccessFilter of HTTP Invoker.

  • Red Hat JBoss Enterprise Application Platform 5 for RHEL 5 Server jbossas 5.2.0-24.ep5.el5, jbossas-client 5.2.0-24.ep5.el5, jbossas-messaging 5.2.0-24.ep5.el5, jbossas-ws-native 5.2.0-24.ep5.el5 Red Hat JBoss Enterprise Application Platform 5 for RHEL 6 Server jbossas 5.2.0-24.ep5.el6, jbossas-client 5.2.0-24.ep5.el6, jbossas-messaging 5.2.0-24.ep5.el6, jbossas-ws-native 5.2.0-24.ep5.el6
    fixed: vendor fix RHSA-2018:1607
  • Red Hat JBoss Enterprise Application Platform 5.2 security update
    fixed: vendor fix RHSA-2018:1608
  • Red Hat JBoss Enterprise Application Platform 6 eap-parent Red Hat JBoss Enterprise Application Platform 7 eap-parent
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA patch deadline
  4. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-06-10 (4 y ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor, product
Red Hat, JBoss Application Server
CISA name
Red Hat JBoss Application Server Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
2 mo ago

Exploit prediction

90.71% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Red Hat, Inc. jbossas

Classification

Weakness
  • CWE-502 Deserialization of Untrusted Data

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.