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CVE-2025-23048

Estado: ModificadaCrítica (9.1)—

In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.

Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.

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/AC:L/PR:N permite acceso remoto sin autenticación previa (T1190). El bypass de control de acceso mediante TLS 1.3 permite a clientes autenticados en un host acceder a otro (T1078.001: abuso de credenciales/certificados confiables). Exposición de datos confidenciales entre virtual hosts segregad

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 ManagementPassword PoliciesNetwork SegmentationMulti-factor AuthenticationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Apache — Http Server

CWE

Referencias

JSON original (NVD)

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          "options": [
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          "integrityImpact": "HIGH",
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          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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          "vendor": "Apache Software Foundation",
          "product": "Apache HTTP Server",
          "versions": [
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  "published": "2025-07-10T17:15:46.553",
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  "vulnStatus": "Modified",
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      "source": "security@apache.org",
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          "value": "CWE-284"
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  "descriptions": [
    {
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      "value": "In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.\n\nConfigurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T08:51:41.460",
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