CVE-2024-43803

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The `BareMetalHost` (BMH) CRD allows the `userData`, `metaData`, and `networkData` for the provisioned host to be specified as links to Kubernetes Secrets. There are fields for both the `Name` and `Namespace` of the Secret, meaning that versions of the baremetal-operator prior to 0.8.0, 0.6.2, and 0.5.2 will read a `Secret` from any namespace. A user with access to create or edit a `BareMetalHost` can thus exfiltrate a `Secret` from another namespace by using it as e.g. the `userData` for provisioning some host (note that this need not be a real host, it could be a VM somewhere).\n\nBMO will only read a key with the name `value` (or `userData`, `metaData`, or `networkData`), so that limits the exposure somewhat. `value` is probably a pretty common key though. Secrets used by _other_ `BareMetalHost`s in different namespaces are always vulnerable. It is probably relatively unusual for anyone other than cluster administrators to have RBAC access to create/edit a `BareMetalHost`. This vulnerability is only meaningful, if the cluster has users other than administrators and users' privileges are limited to their respective namespaces.\n\nThe patch prevents BMO from accepting links to Secrets from other namespaces as BMH input. Any BMH configuration is only read from the same namespace only. The problem is patched in BMO releases v0.7.0, v0.6.2 and v0.5.2 and users should upgrade to those versions. Prior upgrading, duplicate the BMC Secrets to the namespace where the corresponding BMH is. After upgrade, remove the old Secrets. As a workaround, an operator can configure BMO RBAC to be namespace scoped for Secrets, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces."}], "source": {"advisory": "GHSA-pqfh-xh7w-7h3p", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-03T19:30:23.615407Z", "id": "CVE-2024-43803", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-03T19:30:44.895Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-43803", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-03T19:30:23.615407Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-03T19:30:40.655Z"}}], "cna": {"title": "BMO can expose particularly named secrets from other namespaces via BMH CRD", "source": {"advisory": "GHSA-pqfh-xh7w-7h3p", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "metal3-io", "product": "baremetal-operator", "versions": [{"status": "affected", "version": ">= 0.7.0, < 0.8.0"}, {"status": "affected", "version": ">= 0.6.0, < 0.6.2"}, {"status": "affected", "version": "< 0.5.2"}]}], "references": [{"url": "https://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-pqfh-xh7w-7h3p", "name": "https://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-pqfh-xh7w-7h3p", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/metal3-io/baremetal-operator/pull/1929", "name": "https://github.com/metal3-io/baremetal-operator/pull/1929", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/metal3-io/baremetal-operator/pull/1930", "name": "https://github.com/metal3-io/baremetal-operator/pull/1930", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/metal3-io/baremetal-operator/pull/1931", "name": "https://github.com/metal3-io/baremetal-operator/pull/1931", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/metal3-io/baremetal-operator/commit/3af4882e9c5fadc1a7550f53daea21dccd271f74", "name": "https://github.com/metal3-io/baremetal-operator/commit/3af4882e9c5fadc1a7550f53daea21dccd271f74", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/metal3-io/baremetal-operator/commit/bedae7b997d16f36e772806681569bb8eb4dadbb", "name": "https://github.com/metal3-io/baremetal-operator/commit/bedae7b997d16f36e772806681569bb8eb4dadbb", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/metal3-io/baremetal-operator/commit/c2b5a557641bc273367635124047d6c958aa15f7", "name": "https://github.com/metal3-io/baremetal-operator/commit/c2b5a557641bc273367635124047d6c958aa15f7", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "The Bare Metal Operator (BMO) implements a Kubernetes API for managing bare metal hosts in Metal3. The `BareMetalHost` (BMH) CRD allows the `userData`, `metaData`, and `networkData` for the provisioned host to be specified as links to Kubernetes Secrets. There are fields for both the `Name` and `Namespace` of the Secret, meaning that versions of the baremetal-operator prior to 0.8.0, 0.6.2, and 0.5.2 will read a `Secret` from any namespace. A user with access to create or edit a `BareMetalHost` can thus exfiltrate a `Secret` from another namespace by using it as e.g. the `userData` for provisioning some host (note that this need not be a real host, it could be a VM somewhere).\n\nBMO will only read a key with the name `value` (or `userData`, `metaData`, or `networkData`), so that limits the exposure somewhat. `value` is probably a pretty common key though. Secrets used by _other_ `BareMetalHost`s in different namespaces are always vulnerable. It is probably relatively unusual for anyone other than cluster administrators to have RBAC access to create/edit a `BareMetalHost`. This vulnerability is only meaningful, if the cluster has users other than administrators and users' privileges are limited to their respective namespaces.\n\nThe patch prevents BMO from accepting links to Secrets from other namespaces as BMH input. Any BMH configuration is only read from the same namespace only. The problem is patched in BMO releases v0.7.0, v0.6.2 and v0.5.2 and users should upgrade to those versions. Prior upgrading, duplicate the BMC Secrets to the namespace where the corresponding BMH is. After upgrade, remove the old Secrets. As a workaround, an operator can configure BMO RBAC to be namespace scoped for Secrets, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-200", "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-653", "description": "CWE-653: Improper Isolation or Compartmentalization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2024-09-03T18:56:29.607Z"}}}, "cveMetadata": {"cveId": "CVE-2024-43803", "state": "PUBLISHED", "dateUpdated": "2024-09-03T19:30:44.895Z", "dateReserved": "2024-08-16T14:20:37.326Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2024-09-03T18:56:29.607Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "baremetal-operator", "vendor": "metal3-io", "versions": [{"status": "affected", "version": ">= 0.7.0, < 0.8.0"}, {"status": "affected", "version": ">= 0.6.0, < 0.6.2"}, {"status": "affected", "version": "< 0.5.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Bare Metal Operator (BMO) implements a Kubernetes API for managing bare metal hosts in Metal3. The `BareMetalHost` (BMH) CRD allows the `userData`, `metaData`, and `networkData` for the provisioned host to be specified as links to Kubernetes Secrets. There are fields for both the `Name` and `Namespace` of the Secret, meaning that versions of the baremetal-operator prior to 0.8.0, 0.6.2, and 0.5.2 will read a `Secret` from any namespace. A user with access to create or edit a `BareMetalHost` can thus exfiltrate a `Secret` from another namespace by using it as e.g. the `userData` for provisioning some host (note that this need not be a real host, it could be a VM somewhere).\n\nBMO will only read a key with the name `value` (or `userData`, `metaData`, or `networkData`), so that limits the exposure somewhat. `value` is probably a pretty common key though. Secrets used by _other_ `BareMetalHost`s in different namespaces are always vulnerable. It is probably relatively unusual for anyone other than cluster administrators to have RBAC access to create/edit a `BareMetalHost`. This vulnerability is only meaningful, if the cluster has users other than administrators and users' privileges are limited to their respective namespaces.\n\nThe patch prevents BMO from accepting links to Secrets from other namespaces as BMH input. Any BMH configuration is only read from the same namespace only. The problem is patched in BMO releases v0.7.0, v0.6.2 and v0.5.2 and users should upgrade to those versions. Prior upgrading, duplicate the BMC Secrets to the namespace where the corresponding BMH is. After upgrade, remove the old Secrets. As a workaround, an operator can configure BMO RBAC to be namespace scoped for Secrets, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces."}, {"lang": "es", "value": "Bare Metal Operator (BMO) implementa una API de Kubernetes para administrar hosts de bare metal en Metal3. El CRD `BareMetalHost` (BMH) permite que `userData`, `metaData` y `networkData` para el host aprovisionado se especifiquen como enlaces a secretos de Kubernetes. Hay campos tanto para el `Name` como para el `Namespace` del secreto, lo que significa que las versiones del baremetal-operator anteriores a 0.8.0, 0.6.2 y 0.5.2 leer\u00e1n un `Secret` de cualquier espacio de nombres. Un usuario con acceso para crear o editar un `BareMetalHost` puede, por lo tanto, exfiltrar un `Secret` de otro espacio de nombres al usarlo, por ejemplo, como `userData` para aprovisionar alg\u00fan host (tenga en cuenta que no es necesario que sea un host real, podr\u00eda ser una m\u00e1quina virtual en alg\u00fan lugar). BMO solo leer\u00e1 una clave con el nombre `value` (o `userData`, `metaData` o `networkData`), por lo que limita un poco la exposici\u00f3n. `value` es probablemente una clave bastante com\u00fan. Los secretos utilizados por _otros_ `BareMetalHost` en diferentes espacios de nombres siempre son vulnerables. Es probablemente relativamente inusual que alguien que no sea un administrador del cl\u00faster tenga acceso RBAC para crear o editar un `BareMetalHost`. Esta vulnerabilidad solo es significativa si el cl\u00faster tiene usuarios que no sean administradores y los privilegios de los usuarios est\u00e1n limitados a sus respectivos espacios de nombres. El parche evita que BMO acepte enlaces a secretos de otros espacios de nombres como entrada BMH. Cualquier configuraci\u00f3n de BMH solo se lee desde el mismo espacio de nombres. El problema est\u00e1 parcheado en las versiones v0.7.0, v0.6.2 y v0.5.2 de BMO y los usuarios deben actualizar a esas versiones. Antes de actualizar, duplique los secretos de BMC en el espacio de nombres donde se encuentra el BMH correspondiente. Despu\u00e9s de la actualizaci\u00f3n, elimine los secretos antiguos. Como soluci\u00f3n alternativa, un operador puede configurar BMO RBAC para que tenga alcance de espacio de nombres para secretos, en lugar de alcance de cl\u00faster, para evitar que BMO acceda a secretos desde otros espacios de nombres."}], "id": "CVE-2024-43803", "lastModified": "2026-06-17T07:51:44.600", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-43803", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-03T19:30:23.615407Z", "version": "2.0.3"}}]}, "published": "2024-09-03T19:15:14.800", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/commit/3af4882e9c5fadc1a7550f53daea21dccd271f74"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/commit/bedae7b997d16f36e772806681569bb8eb4dadbb"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/commit/c2b5a557641bc273367635124047d6c958aa15f7"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/pull/1929"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/pull/1930"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/pull/1931"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-pqfh-xh7w-7h3p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-653"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2024:6824", "cpe": "cpe:/a:redhat:openshift:4.16::el9", "package": "openshift4/ose-baremetal-rhel9-operator:v4.16.0-202409121637.p0.gae55a70.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.16", "release_date": "2024-09-24T00:00:00Z"}], "bugzilla": {"description": "Bare Metal Operator: BMO can expose particularly named secrets from other namespaces via BMH CRD", "id": "2309536", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2309536"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "(CWE-200|CWE-653)", "details": ["The Bare Metal Operator (BMO) implements a Kubernetes API for managing bare metal hosts in Metal3. The `BareMetalHost` (BMH) CRD allows the `userData`, `metaData`, and `networkData` for the provisioned host to be specified as links to Kubernetes Secrets. There are fields for both the `Name` and `Namespace` of the Secret, meaning that versions of the baremetal-operator prior to 0.8.0, 0.6.2, and 0.5.2 will read a `Secret` from any namespace. A user with access to create or edit a `BareMetalHost` can thus exfiltrate a `Secret` from another namespace by using it as e.g. the `userData` for provisioning some host (note that this need not be a real host, it could be a VM somewhere).\nBMO will only read a key with the name `value` (or `userData`, `metaData`, or `networkData`), so that limits the exposure somewhat. `value` is probably a pretty common key though. Secrets used by _other_ `BareMetalHost`s in different namespaces are always vulnerable. It is probably relatively unusual for anyone other than cluster administrators to have RBAC access to create/edit a `BareMetalHost`. This vulnerability is only meaningful, if the cluster has users other than administrators and users' privileges are limited to their respective namespaces.\nThe patch prevents BMO from accepting links to Secrets from other namespaces as BMH input. Any BMH configuration is only read from the same namespace only. The problem is patched in BMO releases v0.7.0, v0.6.2 and v0.5.2 and users should upgrade to those versions. Prior upgrading, duplicate the BMC Secrets to the namespace where the corresponding BMH is. After upgrade, remove the old Secrets. As a workaround, an operator can configure BMO RBAC to be namespace scoped for Secrets, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces.", "A flaw was found in the Bare Metal Operator (BMO). The BMO implements a Kubernetes API for managing bare metal hosts in Metal3. The BareMetalHost (BMH) CRD allows the userData, metaData, and networkData for the provisioned host to be specified as links to Kubernetes Secrets. There are fields for the Name and Namespace of the Secret, meaning that the baremetal-operator will read a Secret from any namespace. This flaw allows a user with access to create or edit a BareMetalHost can exfiltrate a Secret from another namespace by using it as the userData for provisioning some host, for example. Note that this need not be a real host; it could be a random VM."], "mitigation": {"lang": "en:us", "value": "The Operator can configure BMO RBAC to be the namespace scoped for Secrets, instead of the cluster scoped to prevent BMO from accessing Secrets from other namespaces."}, "name": "CVE-2024-43803", "package_state": [{"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift4/ose-image-customization-controller-rhel8", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2024-09-03T19:15:14Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-43803\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-43803\nhttps://github.com/metal3-io/baremetal-operator/commit/3af4882e9c5fadc1a7550f53daea21dccd271f74\nhttps://github.com/metal3-io/baremetal-operator/commit/bedae7b997d16f36e772806681569bb8eb4dadbb\nhttps://github.com/metal3-io/baremetal-operator/commit/c2b5a557641bc273367635124047d6c958aa15f7\nhttps://github.com/metal3-io/baremetal-operator/pull/1929\nhttps://github.com/metal3-io/baremetal-operator/pull/1930\nhttps://github.com/metal3-io/baremetal-operator/pull/1931\nhttps://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-pqfh-xh7w-7h3p"], "statement": "This issue is considered moderate rather than important because it requires specific conditions to be exploited. The vulnerability relies on an attacker already having the ability to create or modify a BareMetalHost resource, which typically requires elevated permissions. Furthermore, the flaw only allows exfiltration of Secrets by referencing them in another namespace, but does not directly expose or escalate privileges across the cluster. It also doesn't impact the integrity or availability of the system but is limited to confidentiality concerns within a specific scope. Proper RBAC policies can mitigate this risk, reducing its overall severity.", "threat_severity": "Moderate"}

{}