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CVE-2026-42167

Estado: AnalizadaAlta (8.1)—

mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

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.

ProFTPD mod_sql permite inyección SQL (CWE-89) remota sin autenticación (AV:N, PR:N) explotable por comandos SQL. Acceso de red sin privilegios = T1190. El atacante ejecuta comandos arbitrarios mediante USER logging con expansión %U hacia COPY TO PROGRAM.

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 ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Proftpd — Proftpd

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-42167",
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          "role": "CISA Coordinator",
          "options": [
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            },
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              "automatable": "no"
            },
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            }
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          "version": "2.0.3",
          "timestamp": "2026-04-29T12:51:40.626237Z"
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    },
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      "value": "mod_sql en ProFTPD anterior a 1.3.10rc1 permite a atacantes remotos ejecutar código arbitrario mediante un nombre de usuario, en escenarios donde se registran las solicitudes USER con una expansión como %U, y el backend SQL permite comandos (por ejemplo, COPY TO PROGRAM)."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
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