FKIE_CVE-2025-30192

Vulnerability from fkie_nvd - Published: 2025-07-21 13:15 - Updated: 2025-07-22 13:06
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.
References
security@open-xchange.comhttps://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries.\n\nThe updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers.\n\nThe most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled."
    },
    {
      "lang": "es",
      "value": "Un atacante que suplante las respuestas a las solicitudes con ECS habilitadas enviadas por el Recursor tiene mayor probabilidad de \u00e9xito que las consultas sin ECS habilitadas. La versi\u00f3n actualizada incluye varias mitigaciones contra intentos de suplantaci\u00f3n de consultas con ECS habilitadas mediante el encadenamiento de solicitudes con ECS habilitadas y una validaci\u00f3n m\u00e1s estricta de las respuestas recibidas. La mitigaci\u00f3n m\u00e1s estricta se realiza cuando se habilita la nueva configuraci\u00f3n outgoing.edns_subnet_harden (antiguamente edns-subnet-harden)."
    }
  ],
  "id": "CVE-2025-30192",
  "lastModified": "2025-07-22T13:06:07.260",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security@open-xchange.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-07-21T13:15:26.740",
  "references": [
    {
      "source": "security@open-xchange.com",
      "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html"
    }
  ],
  "sourceIdentifier": "security@open-xchange.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ],
      "source": "security@open-xchange.com",
      "type": "Secondary"
    }
  ]
}


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