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CVE-2018-19367: Portainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is…
CVE-2018-19367 is rated critical with a CVSS v3.0 base score of 9.8 and affects Portainer. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
Portainer through 1.19.2 provides an API endpoint (/api/users/admin/check) to verify that the admin user is already created. This API endpoint will return 404 if admin was not created and 204 if it was already created. Attackers can set an admin password in the 404 case.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Affected products
- Portainer: up to and including 1.19.2