fkie_cve-2023-4154
Vulnerability from fkie_nvd
Published
2023-11-07 20:15
Modified
2024-11-21 08:34
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4154Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2241883Issue Tracking
secalert@redhat.comhttps://bugzilla.samba.org/show_bug.cgi?id=15424Issue Tracking, Patch
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20231124-0002/
secalert@redhat.comhttps://www.samba.org/samba/security/CVE-2023-4154.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4154Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2241883Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.samba.org/show_bug.cgi?id=15424Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231124-0002/
af854a3a-2127-422b-91ae-364da2661108https://www.samba.org/samba/security/CVE-2023-4154.htmlVendor Advisory
Impacted products
Vendor Product Version
samba samba *
samba samba *
samba samba *


To clipboard 

{
  "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
            },
            {
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              "versionEndExcluding": "4.18.8",
              "versionStartIncluding": "4.18.0",
              "vulnerable": true
            },
            {
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              "versionEndExcluding": "4.19.1",
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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": "2024-11-21T08:34:29.827",
  "metrics": {
    "cvssMetricV31": [
      {
        "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"
      },
      {
        "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"
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        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  },
  "published": "2023-11-07T20:15:08.683",
  "references": [
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      "source": "secalert@redhat.com",
      "tags": [
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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    },
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    },
    {
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      "tags": [
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      "url": "https://access.redhat.com/security/cve/CVE-2023-4154"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241883"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Patch"
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      "url": "https://bugzilla.samba.org/show_bug.cgi?id=15424"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://security.netapp.com/advisory/ntap-20231124-0002/"
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    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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