VulnerabilityModified

CVE-2022-23000

The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules.

HIGH 7.8EPSS 0.19%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The Western Digital My Cloud Web App [https://os5.mycloud.com/] uses a weak SSLContext when attempting to configure port forwarding rules. This was enabled to maintain compatibility with old or outdated home routers. By using an "SSL" context instead of "TLS" or specifying stronger validation, deprecated or insecure protocols are permitted. As a result, a local user with no privileges can exploit this vulnerability and jeopardize the integrity, confidentiality and authenticity of information transmitted. The scope of impact cannot extend to other components and no user input is required to exploit this vulnerability.

CVSS 3.1: 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.19% probability · 9th percentile
CISA KEV: Not listed
Weakness: CWE-757
Affected: westerndigital/my cloud pr2100 firmware · westerndigital/my cloud pr4100 firmware · westerndigital/my cloud ex4100 firmware · westerndigital/my cloud ex2 ultra firmware · westerndigital/my cloud mirror g2 firmware · westerndigital/my cloud dl2100 firmware · westerndigital/my cloud dl4100 firmware · westerndigital/my cloud ex2100 firmware · westerndigital/my cloud firmware
Source: psirt@wdc.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.