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CVSS: 7.5EPSS: 0%CPEs: 18EXPL: 0

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption. El servidor ksmbd versiones hasta 3.4.2, usado en el kernel de Linux hasta la versión 5.15.8, a veces se comunica en texto sin cifrar aunque se haya habilitado el cifrado. Esto ocurre porque establece la bandera SMB2_GLOBAL_CAP_ENCRYPTION cuando es usado el protocolo SMB 3.1.1, lo cual es una violación de la especificación del protocolo SMB. • https://github.com/cifsd-team/ksmbd/issues/550 https://github.com/cifsd-team/ksmbd/pull/551 https://marc.info/?l=linux-kernel&m=163961726017023&w=2 https://security.netapp.com/advisory/ntap-20220107-0001 • CWE-319: Cleartext Transmission of Sensitive Information •