Skip to content
Fencer Vulns
high 8.1

CVE-2017-2667 json

hammer_cli_foreman Improper Certificate Validation vulnerability

published 2018-03-12 8 y ago modified 2026-06-17 4 mo ago also GHSA-77h8-xr85-3x5q , EUVD-2022-2940

cvss
8.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Hammer CLI, a CLI utility for Foreman, before version 0.10.0, did not explicitly set the verify_ssl flag for apipie-bindings that disable it by default. As a result the server certificates are not checked and connections are prone to man-in-the-middle attacks.

Patch / fix

  • rubygems hammer_cli_foreman 0.10.0
  • theforeman hammer_cli 0.10.0
  • kobo satellite capsule 6.3, satellite 6.3 0.5.1-1.el7sat
  • pulp satellite capsule 6.3, satellite 6.3 2.13.4.6-1.el7sat
  • hiera satellite capsule 6.3, satellite 6.3 1.3.1-2.el7sat
  • foreman satellite capsule 6.3, satellite 6.3 1.15.6.34-1.el7sat
  • katello satellite capsule 6.3, satellite 6.3 3.4.5-15.el7sat
  • pulp-rpm satellite capsule 6.3, satellite 6.3 2.13.4.8-1.el7sat
  • candlepin satellite 6.3 2.1.14-1.el7
  • satellite satellite capsule 6.3, satellite 6.3 6.3.0-23.0.el7sat

red hat advisories RHSA-2018:0336

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-2017-2667 updated cvss 6.4

rubygem-hammer_cli: no verification of API server's SSL certificate

  • Red Hat Enterprise Linux 6 rubygem-hammer_cli Red Hat Enterprise Linux 7 rubygem-hammer_cli Red Hat Enterprise Linux OpenStack Platform 6 (Juno) Installer rubygem-hammer_cli
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6.3 kobo 0.5.1-1.el7sat, hiera 1.3.1-2.el7sat, candlepin 2.1.14-1.el7, pulp 2.13.4.6-1.el7sat, katello 3.4.5-15.el7sat, foreman 1.15.6.34-1.el7sat, +103 more Red Hat Satellite Capsule 6.3 kobo 0.5.1-1.el7sat, hiera 1.3.1-2.el7sat, pulp 2.13.4.6-1.el7sat, katello 3.4.5-15.el7sat, foreman 1.15.6.34-1.el7sat, pulp-docker 2.4.1-2.el7sat, +64 more
    fixed: vendor fix RHSA-2018:0336

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

0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
GitHub 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
rubygems hammer_cli_foreman
<0.10.0
0.10.0

Affected products

  • Foreman Hammer CLI

Classification

Weakness
  • CWE-345 Insufficient Verification of Data Authenticity
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns 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.