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CVE-2023-40585

Unauthenticated access to Ironic API

HIGH
7.5
CVSS Score
Published: August 25, 2023 at 08:31 PM UTC
Updated: June 17, 2026 at 06:18 AM UTC
2 products affected across 2 vendorsIronic ImageIronic Image

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

ironic-image is a container image to run OpenStack Ironic as part of Metal³. Prior to version capm3-v1.4.3, if Ironic is not deployed with TLS and it does not have API and Conductor split into separate services, access to the API is not protected by any authentication. Ironic API is also listening in host network. In case the node is not behind a firewall, the API could be accessed by anyone via network without authentication. By default, Ironic API in Metal3 is protected by TLS and basic authentication, so this vulnerability requires operator to configure API without TLS for it to be vulnerable. TLS and authentication however should not be coupled as they are in versions prior to capm3-v1.4.3. A patch exists in versions capm3-v1.4.3 and newer. Some workarounds are available. Either configure TLS for Ironic API (`deploy.sh -t ...`, `IRONIC_TLS_SETUP=true`) or split Ironic API and Conductor via configuration change (old implementation, not recommended). With both workarounds, services are configured with httpd front-end, which has proper authentication configuration in place.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ironic Image· METAL3
95%
v < 1.4.3
Affected range stops below 1.4.3, so it looks safe — our inference, not a vendor statement
Ironic Image· METAL3 Io
60%
v < capm3-v1.4.3
Affected range stops below capm3-v1.4.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/metal3-io/ironic-image/commit/f64bb6ce0945bbfb30d9965f98149ea183311de9
x_refsource_CONFIRMPatchVendor Advisory
Source: [email protected]
https://github.com/metal3-io/ironic-image/security/advisories/GHSA-jwpr-9fwh-m4g7

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-306

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