« Volver al listado

CVE-2023-51747

Estado: AnalizadaAlta (7.1)—

Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling.

A lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks.

The patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction.

We recommend James users to upgrade to non vulnerable versions.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Apache — James

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-51747",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-51747",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-03-15T20:37:43.302258Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 4.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache James server",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "3.7.4"
            },
            {
              "status": "affected",
              "version": "3.8",
              "versionType": "semver",
              "lessThanOrEqual": "3.8.0"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-02-27T14:15:27.030",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2024/02/27/4",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://postfix.org/smtp-smuggling.html",
      "tags": [
        "Product"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/",
      "tags": [
        "Product"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2024/02/27/4",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://postfix.org/smtp-smuggling.html",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        },
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling.\n\nA lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks.\n\nThe patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction.\n\nWe recommend James users to upgrade to non vulnerable versions."
    },
    {
      "lang": "es",
      "value": "Apache James anterior a las versiones 3.8.1 y 3.7.5 es vulnerable al contrabando SMTP. Un comportamiento indulgente en el manejo del delimitador de línea podría crear una diferencia de interpretación entre el remitente y el receptor que un atacante puede aprovechar para falsificar un sobre SMTP, permitiendo, por ejemplo, eludir las comprobaciones SPF. El parche implica la aplicación de CRLF como delimitador de línea como parte de la transacción de DATOS. Recomendamos a los usuarios de James que actualicen a versiones no vulnerables."
    }
  ],
  "lastModified": "2026-06-17T06:41:35.373",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:james:3.7.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "40A5D89F-8F58-45CD-8AC6-9A6DCA6DEBF9"
            },
            {
              "criteria": "cpe:2.3:a:apache:james:3.8.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6759186-CA76-4B74-8C89-6AB659477F43"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}