CVE-2021-4180: openstack tripleo_heat_templates
Vulnerability summary
CVE-2021-4180 is a medium (CVSS 4.3) vulnerability in openstack tripleo_heat_templates. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.7% of scored vulnerabilities.
Timeline
- 23-03-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
An information exposure flaw in openstack-tripleo-heat-templates allows an external user to discover the internal IP or hostname. An attacker could exploit this by checking the www_authenticate_uri parameter (which is visible to all end users) in configuration files. This would give sensitive information which may aid in additional system exploitation. This flaw affects openstack-tripleo-heat-templates versions prior to 11.6.1.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · PypiEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · Red hatEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
-0.02 pp
From 0.79% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-200Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- CWE-668Exposure of Resource to Wrong SphereThe product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
Affected systems
Redhat2 products
- openstack13 | 16.1 | 16.2
- openstack-tripleo-heat-templates< 0:11.3.2-1.20221013153262.el8ost | < 0:11.6.1-2.20220116004912.el8ost
Openstack1 product
- tripleo_heat_templates< 11.6.1
PyPI1 product
- tripleo-heat-templates< 11.6.1
Ubuntu1 product
- tripleo-heat-templatesAll versions (No fix recorded)
4 vendors · 5 products
References
94 links- bugzilla.redhat.com/show_bug.cgi?id=2035793X Refsource MISCWEBREPORTIssue TrackingPatchThird Party Advisory