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.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | 3.9 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-319,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| netapp | h410c_firmware | - |
| netapp | h300e_firmware | - |
| netapp | h500e_firmware | - |
| netapp | h500s_firmware | - |
| netapp | h410s_firmware | - |
| ksmbd_project | ksmbd | * |
| netapp | h300s_firmware | - |
| netapp | h700s_firmware | - |
| netapp | h700e_firmware | - |