Security readout for executives and security teams
Plain-English summary
Portainer versions through 1.19.2 exposed a setup-state check that could tell whether the admin account existed. If it did not, an attacker could set the admin password. The business risk is unauthorized control of a container management interface, especially where Portainer is internet reachable or left uninitialized.
Executive priority
Prioritize exposed or uninitialized Portainer systems because compromise could give an attacker administrative control over container infrastructure. Treat as urgent where Portainer is internet-facing, but note that the provided sources do not confirm active exploitation or a CVSS score.
Technical view
The reported issue is in Portainer through 1.19.2 at /api/users/admin/check. The endpoint returns 404 when admin is not created and 204 when it exists. In the 404 state, attackers can set an admin password. The sources do not provide CVSS, CWE, confirmed fixed version, or exploit telemetry.
Likely exposure
Exposure is most likely on Portainer deployments through 1.19.2 that are reachable by untrusted networks and have not completed admin initialization. Internet-facing management consoles are the highest concern. The supplied affected metadata is incomplete, but the CVE description names Portainer through 1.19.2.
Exploitation context
CISA KEV status is false in the provided bundle, and no supplied source confirms active exploitation. The referenced Shodan-related repository suggests public interest in finding exposed Portainer instances, but that is not proof of exploitation.
Researcher notes
Evidence is limited to the CVE description and linked public references. The key condition is the 404 state on the admin-check endpoint before admin creation. Avoid assuming all Portainer deployments are vulnerable; validate version, network exposure, and initialization state.
Mitigation direction
- Identify all Portainer deployments and their versions.
- Check Portainer vendor guidance for the fixed or supported upgrade path.
- Restrict Portainer UI and API access to trusted administrative networks.
- Ensure every deployment has completed secure admin initialization.
- Review access controls and credentials for exposed or legacy instances.
Validation and detection
- Inventory Portainer instances and confirm whether any are version 1.19.2 or older.
- Verify Portainer is not reachable from the public internet unless explicitly required.
- Confirm the admin account is already initialized on each deployment.
- Review logs for unexpected admin setup or authentication activity.
- Document any exposed legacy instance for urgent remediation tracking.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-19367 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/lichti/shodan-portainer/CVE reference · x_refsource_MISC
- https://github.com/portainer/portainer/issues/2475CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.