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CVE-2025-59088

Estado: AplazadaAlta (8.6)—

If kdcproxy receives a request for a realm which does not have server addresses defined in its configuration, by default, it will query SRV records in the DNS zone matching the requested realm name. This creates a server-side request forgery vulnerability, since an attacker could send a request for a realm matching a DNS zone where they created SRV records pointing to arbitrary ports and hostnames (which may resolve to loopback or internal IP addresses). This vulnerability can be exploited to probe internal network topology and firewall rules, perform port scanning, and exfiltrate data. Deployments where the "use_dns" setting is explicitly set to false are not affected.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Aplicación web expuesta (kdcproxy) sin autenticación (PR:N) que realiza peticiones a DNS controladas por atacante (CWE-918 SSRF). Permite escaneo de red interna, enumeración y exfiltración de datos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficVulnerability ScanningUser Account Management

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Kdcproxy — KdcproxyAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "published": "2025-11-12T17:15:38.153",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2025:21138",
      "source": "secalert@redhat.com"
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      "source": "secalert@redhat.com"
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393955",
      "source": "secalert@redhat.com"
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      "url": "https://github.com/latchset/kdcproxy/pull/68",
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  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "If kdcproxy receives a request for a realm which does not have server addresses defined in its configuration, by default, it will query SRV records in the DNS zone matching the requested realm name. This creates a server-side request forgery vulnerability, since an attacker could send a request for a realm matching a DNS zone where they created SRV records pointing to arbitrary ports and hostnames (which may resolve to loopback or internal IP addresses). This vulnerability can be exploited to probe internal network topology and firewall rules, perform port scanning, and exfiltrate data. Deployments where\nthe \"use_dns\" setting is explicitly set to false are not affected."
    }
  ],
  "lastModified": "2026-06-30T01:16:28.843",
  "sourceIdentifier": "secalert@redhat.com"
}