CVE-2017-14469
An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG Associated Fault Code: 0028 Fault Type: Non-User Description: Values 0x01 and 0x02 are invalid values for the user fault routine.
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By writing directly to the file it is possible to set these values. When this is done and the device is moved into a run state, a fault is triggered. NOTE: This is not possible through RSLogix.
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 38%
- Percentil entre todas las CVEs puntuadas: 99
- Fecha de la puntuación: 4/10/2026
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 (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
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"value": "Existe una vulnerabilidad de control de acceso explotable en la funcionalidad de permisos de archivos de datos, programas y funciones de Allen Bradley Micrologix 1400 Serie B FRN 21.2 y anteriores. Un paquete especialmente diseñado puede causar una operación de lectura o escritura que resulte en la divulgación de información sensible, la modificación de la configuración o la modificación de la lógica de escalera. Un atacante puede enviar paquetes no autentificados para activar esta vulnerabilidad. Estado del interruptor de llave requerido: REMOTO o PROG Código de fallo asociado: 0028 Tipo de fallo: No Usuario Descripción: Los valores 0x01 y 0x02 son valores no válidos para la rutina de fallos de usuario. Escribiendo directamente en el archivo es posible establecer estos valores. Cuando se hace esto y el dispositivo pasa a un estado de ejecución, se dispara un fallo. NOTA: Esto no es posible a través de RSLogix"
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"lastModified": "2026-06-17T01:06:12.353",
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