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Fencer Intel
high 7.8

CVE-2016-8657 json

It was discovered that EAP packages in certain versions of Red Hat Enterprise Linux use incorrect permissions for /etc/sysconfig/jbossas co…

published 2018-07-31 8 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9496

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

It was discovered that EAP packages in certain versions of Red Hat Enterprise Linux use incorrect permissions for /etc/sysconfig/jbossas configuration files. The file is writable to jboss group (root:jboss, 664). On systems using classic /etc/init.d init scripts (i.e. on Red Hat Enterprise Linux 6 and earlier), the file is sourced by the jboss init script and its content executed with root privileges when jboss service is started, stopped, or restarted.

Patch / fix

  • jbossas jboss enterprise application platform 5 5.2.0-23.ep5.el5
  • jbossas jboss enterprise application platform 5 5.2.0-23.ep5.el6
  • jbossas-client jboss enterprise application platform 5 5.2.0-23.ep5.el5
  • jbossas-client jboss enterprise application platform 5 5.2.0-23.ep5.el6
  • jbossas-messaging jboss enterprise application platform 5 5.2.0-23.ep5.el5
  • jbossas-messaging jboss enterprise application platform 5 5.2.0-23.ep5.el6
  • jbossas-ws-native jboss enterprise application platform 5 5.2.0-23.ep5.el5
  • jbossas-ws-native jboss enterprise application platform 5 5.2.0-23.ep5.el6

red hat advisories RHSA-2018:1609RHSA-2017:0829RHSA-2017:0828RHSA-2017:0827RHSA-2017:0826

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-2016-8657 updated cvss 7.8

jboss: jbossas writable config files allow privilege escalation

  • Red Hat JBoss Enterprise Application Platform 5 for RHEL 5 Server jbossas 5.2.0-23.ep5.el5, jbossas-client 5.2.0-23.ep5.el5, jbossas-messaging 5.2.0-23.ep5.el5, jbossas-ws-native 5.2.0-23.ep5.el5 Red Hat JBoss Enterprise Application Platform 5 for RHEL 6 Server jbossas 5.2.0-23.ep5.el6, jbossas-client 5.2.0-23.ep5.el6, jbossas-messaging 5.2.0-23.ep5.el6, jbossas-ws-native 5.2.0-23.ep5.el6
    fixed: vendor fix RHSA-2018:1609
  • Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 5 Server jboss-msc 1.1.7-1.SP1_redhat_1.1.ep6.el5, hornetq 2.3.25-19.SP17_redhat_1.1.ep6.el5, apache-cxf 2.7.18-6.SP5_redhat_1.1.ep6.el5, jbossts 4.17.39-1.Final_redhat_1.1.ep6.el5, jbossweb 7.5.21-2.Final_redhat_2.1.ep6.el5, picketbox 4.1.4-1.Final_redhat_1.1.ep6.el5, +72 more
    fixed: vendor fix RHSA-2017:0826
  • Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 6 Server jboss-msc 1.1.7-1.SP1_redhat_1.1.ep6.el6, hornetq 2.3.25-19.SP17_redhat_1.1.ep6.el6, apache-cxf 2.7.18-6.SP5_redhat_1.1.ep6.el6, jbossts 4.17.39-1.Final_redhat_1.1.ep6.el6, jbossweb 7.5.21-2.Final_redhat_2.1.ep6.el6, picketbox 4.1.4-1.Final_redhat_1.1.ep6.el6, +74 more
    fixed: vendor fix RHSA-2017:0827
  • Red Hat JBoss Enterprise Application Platform 6.4 for RHEL 7 Server jboss-msc 1.1.7-1.SP1_redhat_1.1.ep6.el7, hornetq 2.3.25-19.SP17_redhat_1.1.ep6.el7, apache-cxf 2.7.18-6.SP5_redhat_1.1.ep6.el7, jbossts 4.17.39-1.Final_redhat_1.1.ep6.el7, jbossweb 7.5.21-2.Final_redhat_2.1.ep6.el7, picketbox 4.1.4-1.Final_redhat_1.1.ep6.el7, +72 more
    fixed: vendor fix RHSA-2017:0828
  • Red Hat JBoss Enterprise Application Platform 7 jboss-seam-int-jbossas
    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

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.