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Fencer Intel
critical 9.8

CVE-2018-14643 json

smart_proxy_dynflow gem authentication bypass in Foreman remote execution feature

published 2018-09-21 8 y ago modified 2026-06-17 4 mo ago also GHSA-gx5g-xcxj-cx2w , EUVD-2018-0606

cvss
9.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
6.2%
EPSS 6.2% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

An authentication bypass flaw was found in the smart_proxy_dynflow component used by Foreman. A malicious attacker can use this flaw to remotely execute arbitrary commands on machines managed by vulnerable Foreman instances, in a highly privileged context.

Patch / fix

  • rubygems smart_proxy_dynflow 0.1.11, 0.2.1
  • rubygem-smart_proxy_dynflow satellite capsule 6.3, satellite 6.3 0.1.10.2-1.el7sat

red hat advisories RHSA-2018:2733

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-2018-14643 updated cvss 9.8

smart_proxy_dynflow: Authentication bypass in Foreman remote execution feature

  • Red Hat Satellite 6.3 rubygem-smart_proxy_dynflow 0.1.10.2-1.el7sat Red Hat Satellite Capsule 6.3 rubygem-smart_proxy_dynflow 0.1.10.2-1.el7sat
    fixed: vendor fix “Disable Smart Proxy Dynflow by setting the :enabled: option to false in the /etc/foreman-proxy/settings.d/dynflow.yml file.” RHSA-2018:2733
  • Red Hat Satellite 6 tfm-rubygem-smart_proxy_dynflow_core
    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

6.17% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C
GitHub 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
rubygems smart_proxy_dynflow
>=0.2.0, <0.2.1
<0.1.11
0.2.1
0.1.11

Affected products

  • [UNKNOWN] smart_proxy_dynflow

Classification

Weakness
  • CWE-592 DEPRECATED: Authentication Bypass Issues
  • CWE-287 Improper Authentication

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.