CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
80.2%
Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is affected by an authentication bypass vulnerability. The login_mgr.cgi file checks credentials against /etc/shadow. However, the “nobody” account (which can be used to access the control panel API as a low-privilege logged-in user) has a default empty password, allowing an attacker to modify the My Cloud EX2 Ultra web page source code and obtain access to the My Cloud as a non-Admin My Cloud device user.
Vendor | Product | Version | CPE |
---|---|---|---|
westerndigital | my_cloud_firmware | * | cpe:2.3:o:westerndigital:my_cloud_firmware:*:*:*:*:*:*:*:* |
westerndigital | my_cloud | - | cpe:2.3:h:westerndigital:my_cloud:-:*:*:*:*:*:*:* |
westerndigital | my_cloud_mirror_gen2_firmware | * | cpe:2.3:o:westerndigital:my_cloud_mirror_gen2_firmware:*:*:*:*:*:*:*:* |
westerndigital | my_cloud_mirror_gen2 | - | cpe:2.3:h:westerndigital:my_cloud_mirror_gen2:-:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex2_ultra_firmware | * | cpe:2.3:o:westerndigital:my_cloud_ex2_ultra_firmware:*:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex2_ultra | - | cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex2100_firmware | * | cpe:2.3:o:westerndigital:my_cloud_ex2100_firmware:*:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex2100 | - | cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex4100_firmware | * | cpe:2.3:o:westerndigital:my_cloud_ex4100_firmware:*:*:*:*:*:*:*:* |
westerndigital | my_cloud_ex4100 | - | cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
80.2%