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CVE-2017-2295

Estado: ModificadaAlta (8.2)—

Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.

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 (2)

Debian — Debian LinuxPuppet — Puppet

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-2295",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 8.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@puppet.com",
      "affectedData": [
        {
          "vendor": "Puppet",
          "product": "Puppet server",
          "versions": [
            {
              "status": "affected",
              "version": "Puppet prior to 4.10.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-07-05T15:29:00.207",
  "references": [
    {
      "url": "http://www.debian.org/security/2017/dsa-3862",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@puppet.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98582",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "security@puppet.com"
    },
    {
      "url": "https://puppet.com/security/cve/cve-2017-2295",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@puppet.com"
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3862",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/98582",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://puppet.com/security/cve/cve-2017-2295",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML."
    },
    {
      "lang": "es",
      "value": "Las versiones de Puppet anteriores a la 4.10.1 deserializarán datos \"off the wire\" (del agente al servidor, en este caso) con un formato especificado por el atacante. Esto podría emplearse para forzar la deserialización YAML de forma no segura, lo que conduciría a la ejecución remota de código. Este cambio limita el formato de los datos on the wire a PSON o a YAML descodificado de forma segura."
    }
  ],
  "lastModified": "2026-06-17T01:15:54.370",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6953B786-3CDF-48D0-AE6A-1B3924431986",
              "versionEndIncluding": "4.10.0"
            }
          ],
          "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": "security@puppet.com"
}