gsd-2023-4154
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-4154", "id": "GSD-2023-4154" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-4154" ], "details": "A design flaw was found in Samba\u0027s DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence.", "id": "GSD-2023-4154", "modified": "2023-12-13T01:20:26.801923Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2023-4154", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "samba", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "status": "unaffected", "version": "4.19.1" }, { "status": "unaffected", "version": "4.18.8" }, { "status": "unaffected", "version": "4.17.12" } ] } } ] } } ] }, "vendor_name": "n/a" }, { "product": { "product_data": [ { "product_name": "Red Hat Enterprise Linux 6", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 7", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 8", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Enterprise Linux 9", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } }, { "product_name": "Red Hat Storage 3", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "unaffected" } } ] } } ] }, "vendor_name": "Red Hat" }, { "product": { "product_data": [ { "product_name": "Fedora", "version": { "version_data": [ { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected" } } ] } } ] }, "vendor_name": "Fedora" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A design flaw was found in Samba\u0027s DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence." } ] }, "impact": { "cvss": [ { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-787", "lang": "eng", "value": "Out-of-bounds Write" } ] } ] }, "references": { "reference_data": [ { "name": "https://access.redhat.com/security/cve/CVE-2023-4154", "refsource": "MISC", "url": "https://access.redhat.com/security/cve/CVE-2023-4154" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2241883", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241883" }, { "name": "https://bugzilla.samba.org/show_bug.cgi?id=15424", "refsource": "MISC", "url": "https://bugzilla.samba.org/show_bug.cgi?id=15424" }, { "name": "https://security.netapp.com/advisory/ntap-20231124-0002/", "refsource": "MISC", "url": "https://security.netapp.com/advisory/ntap-20231124-0002/" }, { "name": "https://www.samba.org/samba/security/CVE-2023-4154.html", "refsource": "MISC", "url": "https://www.samba.org/samba/security/CVE-2023-4154.html" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "matchCriteriaId": "F1CC08E7-E96D-4475-ACB6-22CDF280913E", "versionEndExcluding": "4.17.12", "versionStartIncluding": "4.0.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "matchCriteriaId": "8A33312F-1523-4647-83DA-6DD6231906F9", "versionEndExcluding": "4.18.8", "versionStartIncluding": "4.18.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "matchCriteriaId": "DE496104-DDB5-4709-8026-C83E99B0C865", "versionEndExcluding": "4.19.1", "versionStartIncluding": "4.19.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "A design flaw was found in Samba\u0027s DirSync control implementation, which exposes passwords and secrets in Active Directory to privileged users and Read-Only Domain Controllers (RODCs). This flaw allows RODCs and users possessing the GET_CHANGES right to access all attributes, including sensitive secrets and passwords. Even in a default setup, RODC DC accounts, which should only replicate some passwords, can gain access to all domain secrets, including the vital krbtgt, effectively eliminating the RODC / DC distinction. Furthermore, the vulnerability fails to account for error conditions (fail open), like out-of-memory situations, potentially granting access to secret attributes, even under low-privileged attacker influence." }, { "lang": "es", "value": "Se encontr\u00f3 una falla de dise\u00f1o en la implementaci\u00f3n del control DirSync de Samba, que expone contrase\u00f1as y secretos en Active Directory a usuarios privilegiados y Controladores de Dominio de Solo Lectura (RODC). Esta falla permite a los RODC y a los usuarios que poseen el derecho GET_CHANGES acceder a todos los atributos, incluidos secretos y contrase\u00f1as confidenciales. Incluso en una configuraci\u00f3n predeterminada, las cuentas RODC DC, que solo deber\u00edan replicar algunas contrase\u00f1as, pueden obtener acceso a todos los secretos del dominio, incluido el vital krbtgt, eliminando efectivamente la distinci\u00f3n RODC/DC. Adem\u00e1s, la vulnerabilidad no tiene en cuenta las condiciones de error (fallo de apertura), como situaciones de falta de memoria, lo que potencialmente otorga acceso a atributos secretos, incluso bajo la influencia de un atacante con pocos privilegios." } ], "id": "CVE-2023-4154", "lastModified": "2023-12-29T05:15:08.850", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1" }, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "secalert@redhat.com", "type": "Secondary" } ] }, "published": "2023-11-07T20:15:08.683", "references": [ { "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/security/cve/CVE-2023-4154" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241883" }, { "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch" ], "url": "https://bugzilla.samba.org/show_bug.cgi?id=15424" }, { "source": "secalert@redhat.com", "url": "https://security.netapp.com/advisory/ntap-20231124-0002/" }, { "source": "secalert@redhat.com", "tags": [ "Vendor Advisory" ], "url": "https://www.samba.org/samba/security/CVE-2023-4154.html" } ], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-787" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-787" } ], "source": "secalert@redhat.com", "type": "Secondary" } ] } } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.