CVE-2018-16887 katello Cross-site Scripting vulnerability
An attacker with organization editing privileges can execute XSS attacks in Red Hat Satellite, potentially stealing CSRF tokens from higher-privileged users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-16887?
CVE-2018-16887 is a medium-severity cross-site scripting vulnerability in Redhat Satellite, published on 13 Jan 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A cross-site scripting (XSS) flaw was found in the katello component of Satellite. An attacker with privilege to create/edit organizations and locations is able to execute a XSS attacks against other users through the Subscriptions or the Red Hat Repositories wizards. This can possibly lead to malicious code execution and extraction of the anti-CSRF token of higher privileged users. Versions before 3.9.0 are vulnerable.
Weakness: CWE-79
Which versions are affected by CVE-2018-16887?
2 open source packages ship an affected version, including katello. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
katello RubyGems | All versions | 3.9.0 |
katello RubyGems | All versions | 3.9.0 |
Products include Redhat Satellite, Theforeman Katello.
How do I fix CVE-2018-16887?
Upgrade katello to 3.9.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2018-16887 being exploited?
There is no known exploitation of CVE-2018-16887 in the wild and no public exploit code.
Other vulnerabilities in Redhat Satellite
- CVE-2024-7012 Puppet-foreman: an authentication bypass vulnerability exists in foreman
- CVE-2024-7923 Puppet-pulpcore: an authentication bypass vulnerability exists in pulpcore
- CVE-2026-96659 Foreman: excessive permissions for viewer role on preview
- CVE-2023-0118 Foreman: arbitrary code execution through templates
- CVE-2008-2369 Hardcoded credentials in n/a
Sources
Also known as GHSA-mhhc-r88h-2qrm.