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CVE-2016-7073

Estado: ModificadaMedia (5.9)—

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.

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 (3)

Debian — Debian LinuxPowerdns — AuthoritativePowerdns — Recursor

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-7073",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "Open-Xchange",
          "product": "pdns",
          "versions": [
            {
              "status": "affected",
              "version": "3.4.11"
            },
            {
              "status": "affected",
              "version": "4.0.2"
            },
            {
              "status": "affected",
              "version": "4.0.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-09-11T13:29:01.057",
  "references": [
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7073",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://www.debian.org/security/2017/dsa-3764",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7073",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2017/dsa-3764",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en PowerDNS en versiones anteriores a la 3.4.11 y 4.0.2, y PowerDNS recursor en versiones anteriores a la 4.0.4, lo que permite que un atacante en posición Man-in-the-Middle (MitM) altere el contenido de un AXFR debido a una validación insuficiente de firmas TSIG. La falta de una comprobación de los valores time y fudge de TSIG se encontró en AXFRRetriever, lo que podría conducir a un ataque de reproducción."
    }
  ],
  "lastModified": "2026-06-17T00:52:32.600",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "45749DBA-3089-4FD6-8999-9A6F0C3B4904",
              "versionEndExcluding": "3.4.11"
            },
            {
              "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1DDAEFF5-B01E-4765-98F8-F00F80806118",
              "versionEndExcluding": "4.0.2",
              "versionStartIncluding": "4.0.0"
            },
            {
              "criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0A95C8FD-FB1C-4AFF-84E8-B8BFAF678F31",
              "versionEndExcluding": "3.7.4"
            },
            {
              "criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F07E82C1-0CEF-405D-8BE7-6918C64BABB2",
              "versionEndExcluding": "4.0.4",
              "versionStartIncluding": "4.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}