CVE-2021-45100

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.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:a:ksmbd_project:ksmbd:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*

History

29 Mar 2022, 16:28

Type Values Removed Values Added
First Time Netapp h300e
Netapp h410s
Netapp h410c
Netapp h410s Firmware
Netapp h700s
Netapp
Netapp h410c Firmware
Netapp h500e Firmware
Netapp h700e Firmware
Netapp h300e Firmware
Netapp h500s Firmware
Netapp h300s Firmware
Netapp h700s Firmware
Netapp h500e
Netapp h700e
Netapp h500s
Netapp h300s
CPE cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
References (CONFIRM) https://security.netapp.com/advisory/ntap-20220107-0001/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20220107-0001/ - Third Party Advisory

10 Jan 2022, 14:10

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20220107-0001/ -

22 Dec 2021, 13:01

Type Values Removed Values Added
CWE CWE-319
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:a:ksmbd_project:ksmbd:*:*:*:*:*:*:*:*
References (MISC) https://github.com/cifsd-team/ksmbd/pull/551 - (MISC) https://github.com/cifsd-team/ksmbd/pull/551 - Patch, Third Party Advisory
References (MISC) https://github.com/cifsd-team/ksmbd/issues/550 - (MISC) https://github.com/cifsd-team/ksmbd/issues/550 - Third Party Advisory
References (MISC) https://marc.info/?l=linux-kernel&m=163961726017023&w=2 - (MISC) https://marc.info/?l=linux-kernel&m=163961726017023&w=2 - Third Party Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 5.0
v3 : 7.5

16 Dec 2021, 05:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-12-16 05:15

Updated : 2022-03-29 16:28


NVD link : CVE-2021-45100

Mitre link : CVE-2021-45100


JSON object : View

Products Affected

ksmbd_project

  • ksmbd

netapp

  • h500s
  • h700e_firmware
  • h500e_firmware
  • h410s
  • h410c_firmware
  • h700e
  • h410c
  • h500s_firmware
  • h300e_firmware
  • h500e
  • h700s_firmware
  • h300s_firmware
  • h410s_firmware
  • h700s
  • h300s
  • h300e

linux

  • linux_kernel
CWE
CWE-319

Cleartext Transmission of Sensitive Information