CVE-2017-2667

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.

Published: 2018-03-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-2667 is rated Moderate Risk (50.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.73%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-2667

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.11% 0.73% +0.61%
2 2026-02-12 0.15% 0.11% -0.04%
3 2025-10-15 — 0.15% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-2667

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2017-2667

GitHub Security Advisory for CVE-2017-2667

GHSA-77h8-xr85-3x5q · Severity: high · Ecosystem: rubygems — hammer_cli_foreman Improper Certificate Validation vulnerability

OS Trackers for CVE-2017-2667

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2017-2667

Affected software / configurations for CVE-2017-2667

Vendor Product Version Raw CPE
theforeman hammer_cli < 0.10.0 cpe:2.3:a:theforeman:hammer_cli:*:*:*:*:*:*:*:*
redhat satellite 6.3 cpe:2.3:a:redhat:satellite:6.3:*:*:*:*:*:*:*
redhat satellite_capsule 6.3 cpe:2.3:a:redhat:satellite_capsule:6.3:*:*:*:*:*:*:*

References for CVE-2017-2667

URL Tags
http://projects.theforeman.org/issues/19033 Issue Tracking Vendor Advisory
http://www.securityfocus.com/bid/97153 Broken Link Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:0336 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1436262 Issue Tracking
cvelogic Threat Intelligence