Auth bypass in Westerndigital My_cloud

CVE-2018-9148

Western Digital WD My Cloud v04.05.00-320 devices embed the session token (aka PHPSESSID) in filenames, which makes it easier for attackers to bypass authentication by listing a directory. NOTE: this can be exploited in conjunction with CV…

Vulnerability class: Broken Authentication

EPSS: 0.038 (88.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)

Frequently asked questions

What is CVE-2018-9148?
CVE-2018-9148 is a critical-severity vulnerability in Westerndigital My_cloud, classified under Improper Authentication. CVSS score: 9.8/10. Published 2018-03-30.
How severe is CVE-2018-9148?
Critical severity. CVSS v3 base score is 9.8 out of 10.