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CVE-2021-3139

Estado: ModificadaAlta (8.1)—

In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm.

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 (1)

Tcmu-runner Project — Tcmu-runner

CWE

Referencias

JSON original (NVD)

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      "value": "In Open-iSCSI tcmu-runner 1.3.x, 1.4.x, and 1.5.x through 1.5.2, xcopy_locate_udev in tcmur_cmd_handler.c lacks a check for transport-layer restrictions, allowing remote attackers to read or write files via directory traversal in an XCOPY request. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. NOTE: relative to CVE-2020-28374, this is a similar mistake in a different algorithm."
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      "value": "En Open-iSCSI tcmu-runner versiones 1.3.x, 1.4.x y versiones 1.5.x hasta 1.5.2, en la función xcopy_locate_udev en el archivo tcmur_cmd_handler.c carece de una comprobación de restricciones de la capa de transporte, permitiendo a atacantes remotos leer o escribir archivos por medio de un salto de directorio en una petición XCOPY. Por ejemplo, un ataque puede ocurrir en una red si el atacante presenta acceso a un iSCSI LUN. NOTA: en relación con CVE-2020-28374, este es un error similar en un algoritmo diferente."
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  "lastModified": "2026-06-17T04:04:44.140",
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