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CVE-2021-4462

Estado: AnalizadaCrítica (9.3)—

Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.

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.

CWE-434 + AV:N/PR:N + uploadID.php sin validación = T1190. Web shell (T1505.003) + ejecución de comandos arbitrarios (T1059) tras subida sin restricciones.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningUser Account ManagementRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

Skittles — Employee Records System

CWE

Referencias

JSON original (NVD)

Mostrar
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