Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-3310

Severity CVSS v4.0:
Pending analysis
Type:
CWE-59 Link Following
Publication date:
10/03/2021
Last modified:
17/03/2021

Description

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).

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.60
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:westerndigital:my_cloud_os:*:*:*:*:*:*:*:* 5.10.122 (excluding)
cpe:2.3:h:westerndigital:my_cloud_dl2100:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_dl4100:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_mirror_gen_2:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_pr2100:-:*:*:*:*:*:*:*
cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools