CVE-2021-34807
Estado: ModificadaMedia (6.1)—
Existe una vulnerabilidad de redirección abierta en el servlet /preauth de Zimbra Collaboration Suite hasta la versión 9.0. Para explotar la vulnerabilidad, un atacante necesitaría haber obtenido un token de autentificación válido de Zimbra o un token de preautentificación válido. Una vez obtenido el token, un atacante podría redirigir a un usuario a cualquier URL mediante isredirect=1&redirectURL= junto con los datos del token (por ejemplo, un valor authtoken= válido)
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.98%
- Percentil entre todas las CVEs puntuadas: 61
- Fecha de la puntuación: 8/10/2026
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
- CWE-601
Referencias
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23
- https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
JSON original (NVD)
Mostrar
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