CVE-2025-29781

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{"affected": [{"affectedData": [{"product": "baremetal-operator", "vendor": "metal3-io", "versions": [{"status": "affected", "version": "= 0.9.0"}, {"status": "affected", "version": "< 0.8.1"}]}], "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. Baremetal Operator enables users to load Secret from arbitrary namespaces upon deployment of the namespace scoped Custom Resource `BMCEventSubscription`. Prior to versions 0.8.1 and 0.9.1, an adversary Kubernetes account with only namespace level roles (e.g. a tenant controlling a namespace) may create a `BMCEventSubscription` in his authorized namespace and then load Secrets from his unauthorized namespaces to his authorized namespace via the Baremetal Operator, causing Secret Leakage. The patch makes BMO refuse to read Secrets from other namespace than where the corresponding BMH resource is. The patch does not change the `BMCEventSubscription` API in BMO, but stricter validation will fail the request at admission time. It will also prevent the controller reading such Secrets, in case the BMCES CR has already been deployed. The issue exists for all versions of BMO, and is patched in BMO releases v0.9.1 and v0.8.1. Prior upgrading to patched BMO version, duplicate any existing Secret pointed to by `BMCEventSubscription`'s `httpHeadersRef` to the same namespace where the corresponding BMH exists. After upgrade, remove the old Secrets. As a workaround, the operator can configure BMO RBAC to be namespace scoped, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces, and/or use `WATCH_NAMESPACE` configuration option to limit BMO to single namespace."}, {"lang": "es", "value": "Bare Metal Operator (BMO) implementa una API de Kubernetes para administrar hosts de hardware en Metal3. Este operador permite a los usuarios cargar secretos desde espacios de nombres arbitrarios al implementar el recurso personalizado `BMCEventSubscription` con \u00e1mbito de espacio de nombres. Antes de las versiones 0.8.1 y 0.9.1, una cuenta de Kubernetes adversaria con roles solo a nivel de espacio de nombres (por ejemplo, un inquilino que controla un espacio de nombres) pod\u00eda crear una `BMCEventSubscription` en su espacio de nombres autorizado y luego cargar secretos desde sus espacios de nombres no autorizados a su espacio de nombres autorizado mediante el Baremetal Operator, lo que causaba una fuga de secretos. El parche hace que BMO se niegue a leer secretos de un espacio de nombres diferente al del recurso BMH correspondiente. El parche no modifica la API `BMCEventSubscription` en BMO, pero una validaci\u00f3n m\u00e1s estricta fallar\u00e1 la solicitud en el momento de la admisi\u00f3n. Tambi\u00e9n impedir\u00e1 que el controlador lea dichos secretos, en caso de que el BMCES CR ya se haya implementado. El problema existe en todas las versiones de BMO y est\u00e1 corregido en las versiones 0.9.1 y 0.8.1 de BMO. Antes de actualizar a la versi\u00f3n corregida de BMO, duplique cualquier secreto existente al que apunte `httpHeadersRef` de `BMCEventSubscription` en el mismo espacio de nombres donde exista el BMH correspondiente. Tras la actualizaci\u00f3n, elimine los secretos antiguos. Como workaround, el operador puede configurar el RBAC de BMO para que tenga alcance de espacio de nombres, en lugar de cl\u00faster, para evitar que BMO acceda a secretos de otros espacios de nombres, o bien usar la opci\u00f3n de configuraci\u00f3n `WATCH_NAMESPACE` para limitar BMO a un solo espacio de nombres."}], "id": "CVE-2025-29781", "lastModified": "2026-06-17T09:05:39.610", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-29781", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-03-18T14:09:58.967344Z", "version": "2.0.3"}}]}, "published": "2025-03-17T22:15:14.493", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/commit/19f8443b1fe182f76dd81b43122e8dd102f8b94c"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/pull/2321"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/pull/2322"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-c98h-7hp9-v9hq"}, {"source": "security-advisories@github.com", "url": "https://github.com/metal3-io/metal3-docs/blob/main/design/baremetal-operator/bmc-events.md"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/metal3-io/metal3-docs/blob/main/design/baremetal-operator/bmc-events.md"}], "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-2025:4409", "cpe": "cpe:/a:redhat:openshift:4.12::el8", "impact": "important", "package": "openshift4/ose-baremetal-rhel8-operator:v4.12.0-202504241000.p0.g6817f4e.assembly.stream.el8", "product_name": "Red Hat OpenShift Container Platform 4.12", "release_date": "2025-05-08T00:00:00Z"}, {"advisory": "RHSA-2025:4677", "cpe": "cpe:/a:redhat:openshift:4.13::el8", "impact": "important", "package": "openshift4/ose-baremetal-rhel8-operator:v4.13.0-202504231429.p0.g3f56e49.assembly.stream.el8", "product_name": "Red Hat OpenShift Container Platform 4.13", "release_date": "2025-05-15T00:00:00Z"}, {"advisory": "RHSA-2025:4177", "cpe": "cpe:/a:redhat:openshift:4.14::el8", "impact": "important", "package": "openshift4/ose-baremetal-rhel8-operator:v4.14.0-202504220036.p0.g483d019.assembly.stream.el8", "product_name": "Red Hat OpenShift Container Platform 4.14", "release_date": "2025-04-30T00:00:00Z"}, {"advisory": "RHSA-2025:4422", "cpe": "cpe:/a:redhat:openshift:4.15::el9", "impact": "important", "package": "openshift4/ose-baremetal-rhel9-operator:v4.15.0-202504281408.p0.g880ee05.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.15", "release_date": "2025-05-08T00:00:00Z"}, {"advisory": "RHSA-2025:4008", "cpe": "cpe:/a:redhat:openshift:4.16::el9", "impact": "important", "package": "openshift4/ose-baremetal-rhel9-operator:v4.16.0-202504120704.p0.g84aeac3.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.16", "release_date": "2025-04-23T00:00:00Z"}, {"advisory": "RHSA-2025:3798", "cpe": "cpe:/a:redhat:openshift:4.17::el9", "impact": "important", "package": "openshift4/ose-baremetal-rhel9-operator:v4.17.0-202504091537.p0.ge6e5d54.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.17", "release_date": "2025-04-16T00:00:00Z"}, {"advisory": "RHSA-2025:3775", "cpe": "cpe:/a:redhat:openshift:4.18::el9", "impact": "important", "package": "openshift4/ose-baremetal-rhel9-operator:v4.18.0-202504090803.p0.g001d949.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.18", "release_date": "2025-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:11038", "cpe": "cpe:/a:redhat:openshift:4.19::el9", "impact": "important", "package": "openshift4/ose-cluster-baremetal-operator-rhel9:v4.19.0-202505200051.p0.gf64a5c1.assembly.stream.el9", "product_name": "Red Hat OpenShift Container Platform 4.19", "release_date": "2025-06-17T00:00:00Z"}], "bugzilla": {"description": "baremetal-operator/apis: Bare Metal Operator (BMO) can expose any secret from other namespaces via BMCEventSubscription CRD", "id": "2353041", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2353041"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "status": "verified"}, "cwe": "(CWE-200|CWE-653)", "details": ["The Bare Metal Operator (BMO) implements a Kubernetes API for managing bare metal hosts in Metal3. Baremetal Operator enables users to load Secret from arbitrary namespaces upon deployment of the namespace scoped Custom Resource `BMCEventSubscription`. Prior to versions 0.8.1 and 0.9.1, an adversary Kubernetes account with only namespace level roles (e.g. a tenant controlling a namespace) may create a `BMCEventSubscription` in his authorized namespace and then load Secrets from his unauthorized namespaces to his authorized namespace via the Baremetal Operator, causing Secret Leakage. The patch makes BMO refuse to read Secrets from other namespace than where the corresponding BMH resource is. The patch does not change the `BMCEventSubscription` API in BMO, but stricter validation will fail the request at admission time. It will also prevent the controller reading such Secrets, in case the BMCES CR has already been deployed. The issue exists for all versions of BMO, and is patched in BMO releases v0.9.1 and v0.8.1. Prior upgrading to patched BMO version, duplicate any existing Secret pointed to by `BMCEventSubscription`'s `httpHeadersRef` to the same namespace where the corresponding BMH exists. After upgrade, remove the old Secrets. As a workaround, the operator can configure BMO RBAC to be namespace scoped, instead of cluster scoped, to prevent BMO from accessing Secrets from other namespaces, and/or use `WATCH_NAMESPACE` configuration option to limit BMO to single namespace.", "A flaw was found in the Bare Metal Operator (BMO) Kubernetes API component. BMO enables users to load Secrets from arbitrary namespaces upon deployment of the namespace-scoped Custom Resource `BMCEventSubscription`. In affected versions, an adversary using a Kubernetes account with only namespace level roles (e.g. a tenant controlling a namespace) may create a `BMCEventSubscription` in their authorized namespace and then load Secrets from their unauthorized namespaces to another authorized namespace via the Baremetal Operator, which can lead to the exposure of secrets and credential information."], "mitigation": {"lang": "en:us", "value": "Operator can configure BMO role-based access control (RBAC) to be namespace scoped instead of cluster scoped to prevent BMO from accessing Secrets from other namespaces, or use the `WATCH_NAMESPACE` configuration option to limit BMO to a single namespace."}, "name": "CVE-2025-29781", "package_state": [{"cpe": "cpe:/a:redhat:assisted_installer:2", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhai-tech-preview/assisted-installer-reporter-rhel8", "product_name": "Assisted Installer for Red Hat OpenShift Container Platform 2"}, {"cpe": "cpe:/a:redhat:assisted_installer:2", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhai-tech-preview/assisted-installer-rhel8", "product_name": "Assisted Installer for Red Hat OpenShift Container Platform 2"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "multicluster-engine/agent-service-rhel8", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "multicluster-engine/assisted-installer-controller-rhel8", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "multicluster-engine/assisted-installer-reporter-rhel8", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "impact": "moderate", 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"fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhacm2/acm-siteconfig-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "o-cloud-hwmgr-plugin-operator-bundle-container", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "o-cloud-manager-operator-bundle-container", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift4/ose-agent-installer-api-server-rhel9", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openshift4/ose-agent-installer-csr-approver-rhel9", "product_name": "Red Hat OpenShift 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"moderate", "package_name": "oran-o2ims-operator-bundle-container", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "ose-installer-terraform-providers-container", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "osp-director-provisioner-container", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhosp-rhel8/osp-director-agent", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "rhosp-rhel8-tech-preview/osp-director-downloader", "product_name": "Red Hat OpenStack Platform 16.2"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Fix 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deferred", "impact": "moderate", "package_name": "openstack-baremetal-operator-bundle-container", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openstack-baremetal-operator-container", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openstack-operator-bundle-container", "product_name": "Red Hat OpenStack Platform 18.0"}, {"cpe": "cpe:/a:redhat:openstack:18.0", "fix_state": "Fix deferred", "impact": "moderate", "package_name": "openstack-operator-container", "product_name": "Red Hat OpenStack Platform 18.0"}], "public_date": "2025-03-17T21:37:31Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-29781\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-29781\nhttps://github.com/metal3-io/baremetal-operator/commit/19f8443b1fe182f76dd81b43122e8dd102f8b94c\nhttps://github.com/metal3-io/baremetal-operator/pull/2321\nhttps://github.com/metal3-io/baremetal-operator/pull/2322\nhttps://github.com/metal3-io/baremetal-operator/security/advisories/GHSA-c98h-7hp9-v9hq\nhttps://github.com/metal3-io/metal3-docs/blob/main/design/baremetal-operator/bmc-events.md"], "statement": "This vulnerability is rated as Important for OpenShift Baremetal Operator, because RBAC is cluster-scoped and, while WATCH_NAMESPACE is set to openshift-machine-api by default, it is common for deployments to have a less restrictive value configured. It breaks Kubernetes' namespace isolation by allowing a user to create a BMCEventSubscription that references Secrets from unauthorized namespaces. In OpenShift, where Secrets often store high-value assets like kubeadmin credentials or cloud API keys, this enables unauthorized access to sensitive data across tenant boundaries. It effectively becomes a horizontal privilege escalation vector, allowing a namespace-scoped user to exfiltrate secrets intended for other components or tenants. Given the minimal exploit complexity and high-impact potential, especially in multi-tenant environments, this issue is more severe than a moderate flaw and justifies a high CVSS rating.", "threat_severity": "Important"}

{}