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CVE-2025-31698

Estado: AnalizadaAlta (7.5)—

ACL configured in ip_allow.config or remap.config does not use IP addresses that are provided by PROXY protocol.

Users can use a new setting (proxy.config.acl.subjects) to choose which IP addresses to use for the ACL if Apache Traffic Server is configured to accept PROXY protocol.  This issue affects undefined: from 10.0.0 through 10.0.6, from 9.0.0 through 9.2.10.

Users are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue.

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.

AV:N sin autenticación permite explotar aplicación web expuesta (T1190). PROXY protocol bypass en ACL permite leer datos confidenciales (C:H en CVSS).

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

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Apache — Traffic Server

CWE

Referencias

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{
  "id": "CVE-2025-31698",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-31698",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-20T13:31:33.907068Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Traffic Server",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "10.0.6"
            },
            {
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.2.10"
            }
          ],
          "defaultStatus": "unaffected"
        }
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  ],
  "published": "2025-06-19T10:15:20.980",
  "references": [
    {
      "url": "https://lists.apache.org/thread/15t32nxbypqg1m2smp640vjx89o6v5f8",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ACL configured in ip_allow.config or remap.config does not use IP addresses that are provided by PROXY protocol.\n\nUsers can use a new setting (proxy.config.acl.subjects) to choose which IP addresses to use for the ACL if Apache Traffic Server is configured to accept PROXY protocol. \nThis issue affects undefined: from 10.0.0 through 10.0.6, from 9.0.0 through 9.2.10.\n\nUsers are recommended to upgrade to version 9.2.11 or 10.0.6, which fixes the issue."
    },
    {
      "lang": "es",
      "value": "La ACL configurada en ip_allow.config o remap.config no utiliza las direcciones IP proporcionadas por el protocolo PROXY. Los usuarios pueden usar una nueva configuración (proxy.config.acl.subjects) para elegir las direcciones IP que se usarán para la ACL si Apache Traffic Server está configurado para aceptar el protocolo PROXY. Este problema afecta a las versiones undefined: de la 10.0.0 a la 10.0.6 y de la 9.0.0 a la 9.2.10. Se recomienda actualizar a la versión 9.2.11 o 10.0.6, que soluciona el problema."
    }
  ],
  "lastModified": "2026-06-17T09:10:48.223",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7AB2F8C0-3B8A-4C21-8358-4718FB3ECA5C",
              "versionEndExcluding": "9.2.11",
              "versionStartIncluding": "9.0.0"
            },
            {
              "criteria": "cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5AF96465-2A06-4EC2-832C-36A094908691",
              "versionEndExcluding": "10.0.6",
              "versionStartIncluding": "10.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "security@apache.org"
}