CVE-2018-10923

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{"affected": [{"affectedData": [{"product": "glusterfs", "vendor": "Red Hat", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gluster:glusterfs:*:*:*:*:*:*:*:*", "matchCriteriaId": "FB3DEA10-0AA0-4A16-8A90-6C59FDF2A702", "versionEndExcluding": "3.12.14", "versionStartIncluding": "3.12.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:gluster:glusterfs:*:*:*:*:*:*:*:*", "matchCriteriaId": "F5A10693-F756-4E39-AE58-521BDD8488AA", "versionEndExcluding": "4.1.8", "versionStartIncluding": "4.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "BB28F9AF-3D06-4532-B397-96D7E4792503", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*", "matchCriteriaId": "9BBCD86A-E6C7-4444-9D74-F861084090F0", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "It was found that the \"mknod\" call derived from mknod(2) can create files pointing to devices on a glusterfs server node. An authenticated attacker could use this to create an arbitrary device and read data from any device attached to the glusterfs server node."}, {"lang": "es", "value": "Se ha detectado que la llamada \"mknod\" derivada de mknod(2) puede crear archivos que se\u00f1alan a dispositivos en un nodo del servidor glusterfs. Un atacante autenticado podr\u00eda emplearlo para crear un dispositivo arbitrario y leer datos desde cualquier dispositivo conectado al nodo del servidor glusterfs."}], "id": "CVE-2018-10923", "lastModified": "2026-06-17T01:34:55.883", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 5.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "secalert@redhat.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-09-04T14:29:00.597", "references": [{"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:2607"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:2608"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3470"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Mitigation"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10923"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201904-06"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:2607"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:2608"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2018:3470"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Mitigation"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10923"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201904-06"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

{"acknowledgement": "Red Hat would like to thank Michael Hanselmann (hansmi.ch) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2018:2608", "cpe": "cpe:/a:redhat:storage:3:client:el6", "package": "glusterfs-0:3.12.2-18.el6", "product_name": "Native Client for RHEL 6 for Red Hat Storage", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2607", "cpe": "cpe:/a:redhat:storage:3:client:el7", "package": "glusterfs-0:3.12.2-18.el7", "product_name": "Native Client for RHEL 7 for Red Hat Storage", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2608", "cpe": "cpe:/a:redhat:storage:3.4:server:el6", "package": "glusterfs-0:3.12.2-18.el6rhs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 6", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2608", "cpe": "cpe:/a:redhat:storage:3.4:server:el6", "package": "redhat-release-server-0:6Server-6.10.0.24.el6rhs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 6", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2608", "cpe": "cpe:/a:redhat:storage:3.4:server:el6", "package": "redhat-storage-server-0:3.4.0.0-1.el6rhs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 6", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2607", "cpe": "cpe:/a:redhat:storage:3.4:server:el7", "package": "glusterfs-0:3.12.2-18.el7rhgs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 7", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2607", "cpe": "cpe:/a:redhat:storage:3.4:server:el7", "package": "redhat-release-server-0:7.5-11.el7rhgs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 7", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2607", "cpe": "cpe:/a:redhat:storage:3.4:server:el7", "package": "redhat-storage-server-0:3.4.0.0-1.el7rhgs", "product_name": "Red Hat Gluster Storage 3.4 for RHEL 7", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:2607", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "impact": "moderate", "package": "glusterfs-0:3.12.2-18.el7", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2018-09-04T00:00:00Z"}, {"advisory": "RHSA-2018:3470", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "impact": "moderate", "package": "imgbased-0:1.0.29-1.el7ev", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2018-11-05T00:00:00Z"}, {"advisory": "RHSA-2018:3470", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "impact": "moderate", "package": "redhat-release-virtualization-host-0:4.2-7.3.el7", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2018-11-05T00:00:00Z"}, {"advisory": "RHSA-2018:3470", "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor", "impact": "moderate", "package": "redhat-virtualization-host-0:4.2-20181026.0.el7_6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 7", "release_date": "2018-11-05T00:00:00Z"}], "bugzilla": {"description": "glusterfs: I/O to arbitrary devices on storage server", "id": "1610659", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1610659"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.6", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L", "status": "verified"}, "cwe": "CWE-20", "details": ["It was found that the \"mknod\" call derived from mknod(2) can create files pointing to devices on a glusterfs server node. An authenticated attacker could use this to create an arbitrary device and read data from any device attached to the glusterfs server node.", "It was found that the \"mknod\" call derived from mknod(2) can create files pointing to devices on a glusterfs server node. An authenticated attacker could use this to create an arbitrary device and read data from any device attached to the glusterfs server node."], "mitigation": {"lang": "en:us", "value": "To limit exposure of gluster server nodes : \n1. gluster server should be on LAN and not reachable from public networks. \n2. Use gluster auth.allow and auth.reject. \n3. Use TLS certificates to authenticate gluster clients.\ncaveat: This does not protect from attacks by authenticated gluster clients."}, "name": "CVE-2018-10923", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "glusterfs", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "glusterfs", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "glusterfs", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-09-04T05:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-10923\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-10923"], "statement": "This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there.\nThis flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.", "threat_severity": "Important"}

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