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nvd[email protected]NVD:CVE-2021-3310
HistoryMar 10, 2021 - 5:15 a.m.

CVE-2021-3310

2021-03-1005:15:13
CWE-59
web.nvd.nist.gov
4
cve-2021-3310
western digital
my cloud
smb
afp
symbolic link
code execution
information disclosure

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0

Percentile

15.9%

Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).

Affected configurations

Nvd
Node
westerndigitalmy_cloud_dl2100Match-
OR
westerndigitalmy_cloud_dl4100Match-
OR
westerndigitalmy_cloud_ex2_ultraMatch-
OR
westerndigitalmy_cloud_ex2100Match-
OR
westerndigitalmy_cloud_ex4100Match-
OR
westerndigitalmy_cloud_mirror_gen_2Match-
OR
westerndigitalmy_cloud_pr2100Match-
OR
westerndigitalmy_cloud_pr4100Match-
AND
westerndigitalmy_cloud_osRange<5.10.122
VendorProductVersionCPE
westerndigitalmy_cloud_dl2100-cpe:2.3:h:westerndigital:my_cloud_dl2100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_dl4100-cpe:2.3:h:westerndigital:my_cloud_dl4100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_ex2_ultra-cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_ex2100-cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_ex4100-cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_mirror_gen_2-cpe:2.3:h:westerndigital:my_cloud_mirror_gen_2:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_pr2100-cpe:2.3:h:westerndigital:my_cloud_pr2100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_pr4100-cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:*
westerndigitalmy_cloud_os*cpe:2.3:o:westerndigital:my_cloud_os:*:*:*:*:*:*:*:*

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0

Percentile

15.9%