RHSA-2018:2733
Vulnerability from csaf_redhat - Published: 2018-09-20 17:21 - Updated: 2025-11-21 18:06Summary
Red Hat Security Advisory: rubygem-smart_proxy_dynflow security update
Severity
Critical
Notes
Topic: An update for rubygem-smart_proxy_dynflow is now available for Red Hat Satellite 6.3 for RHEL 7.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The rubygem provided by rubygem-smart_proxy_dynflow is a plugin into Foreman's Smart Proxy for running Dynflow actions on the Smart Proxy.
Security Fix(es):
* smart_proxy_dynflow: Authentication bypass in Foreman remote execution feature (CVE-2018-14643)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
This issue was discovered by Ivan Necas (Red Hat).
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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.
9.8 (Critical)
Vendor Fix
This update does not require a full upgrade. Only the update of the rubygem-smart_proxy_dynflow package is required.
In order to update your Satellite system, follow the instructions below:
Stop all services:
# katello-service stop
Update rubygem-smart_proxy_dynflow
# yum update rubygem-smart_proxy_dynflow
Start services:
# katello-service restart
For detailed instructions how to apply this update, refer to:
https://access.redhat.com/documentation/en-us/red_hat_satellite/6.3/html/upgrading_and_updating_red_hat_satellite/updating_satellite_server_capsule_server_and_content_hosts
https://access.redhat.com/errata/RHSA-2018:2733
Workaround
Disable Smart Proxy Dynflow by setting the :enabled: option to false in the /etc/foreman-proxy/settings.d/dynflow.yml file.
References
Acknowledgments
Red Hat
Ivan Necas
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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