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CVE-2025-14179

Estado: ModificadaAlta (7.4)—

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the PDO Firebird driver improperly handles NUL bytes when preparing SQL queries. During token-by-token query construction, a string token containing a NUL byte is copied via strncat(), which stops at the NUL byte, dropping the closing quote and causing subsequent SQL tokens to be interpreted as part of the string. This allows SQL injection when attacker-controlled values are quoted via PDO::quote() and embedded in SQL statements.

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.

SQL injection en PDO Firebird (CWE-89) mediante bytes NUL en PDO::quote(). Requiere interacción del usuario (UI:A) al proporcionar entrada maliciosa. Impactos: lectura de datos (VC:H, VI:H), manipulación DB (SI:H) y potencial acceso a credenciales de BD.

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

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Tecnologías afectadas (1)

PHP — PHP

CWE

Referencias

JSON original (NVD)

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  "references": [
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      "url": "https://github.com/php/php-src/security/advisories/GHSA-w476-322c-wpvm",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@php.net"
    },
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
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      "source": "security@php.net",
      "description": [
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          "value": "CWE-89"
        }
      ]
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    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the PDO Firebird driver improperly handles NUL bytes when preparing SQL queries. During token-by-token query construction, a string token containing a NUL byte is copied via strncat(), which stops at the NUL byte, dropping the closing quote and causing subsequent SQL tokens to be interpreted as part of the string. This allows SQL injection when attacker-controlled values are quoted via PDO::quote() and embedded in SQL statements."
    },
    {
      "lang": "es",
      "value": "En versiones de PHP 8.2.* anteriores a 8.2.31, 8.3.* anteriores a 8.3.31, 8.4.* anteriores a 8.4.21, y 8.5.* anteriores a 8.5.6, el controlador PDO Firebird maneja incorrectamente los bytes NUL al preparar consultas SQL. Durante la construcción de consultas token por token, un token de cadena que contiene un byte NUL se copia mediante strncat(), lo que se detiene en el byte NUL, eliminando la comilla de cierre y haciendo que los tokens SQL subsiguientes se interpreten como parte de la cadena. Esto permite la inyección SQL cuando los valores controlados por el atacante se citan mediante PDO::quote() y se incrustan en sentencias SQL."
    }
  ],
  "lastModified": "2026-07-25T11:10:00.100",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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