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CVE-2012-4388

Estado: ModificadaMedia (4.3)—

La función sapi_header_op en main/SAPI.c en PHP v5.4.0 hasta v5.4.0RC2, no determina correctamente un puntero durante los controles secuencias %0D (también conocidos como caracteres de retorno de carro), lo que permite a atacantes remotos evitar un mecanismo de protección de HTTP response-splitting a través de una URL modificada, relacionada con la interacción inadecuada entre la función de cabecera de PHP y algunos navegadores, como se demuestra con Internet Explorer y Google Chrome. NOTA: esta vulnerabilidad se debe a una solución incorrecta para CVE-2011-1398.

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).

Tecnologías afectadas (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
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          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "product": "n/a",
          "versions": [
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              "version": "n/a"
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  "published": "2012-09-07T22:55:02.883",
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      "description": [
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          "value": "CWE-20"
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      "value": "The sapi_header_op function in main/SAPI.c in PHP 5.4.0RC2 through 5.4.0 does not properly determine a pointer during checks for %0D sequences (aka carriage return characters), which allows remote attackers to bypass an HTTP response-splitting protection mechanism via a crafted URL, related to improper interaction between the PHP header function and certain browsers, as demonstrated by Internet Explorer and Google Chrome.  NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-1398."
    },
    {
      "lang": "es",
      "value": "La función sapi_header_op en main/SAPI.c en PHP v5.4.0 hasta v5.4.0RC2, no determina correctamente un puntero durante los controles  secuencias %0D (también conocidos como caracteres de retorno de carro), lo que permite a atacantes remotos evitar un mecanismo de protección de HTTP response-splitting a través de una URL modificada, relacionada con la interacción inadecuada entre la función de cabecera de PHP y algunos navegadores, como se demuestra con Internet Explorer y Google Chrome. NOTA: esta vulnerabilidad se debe a una solución incorrecta para CVE-2011-1398."
    }
  ],
  "lastModified": "2026-06-16T23:44:55.430",
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