Arbitrary Code Execution Vulnerability in Western Digital My Cloud EX2 Ultra Firmware 2.31.183

Arbitrary Code Execution Vulnerability in Western Digital My Cloud EX2 Ultra Firmware 2.31.183

CVE-2019-18930 · HIGH Severity

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

Western Digital My Cloud EX2 Ultra firmware 2.31.183 allows web users (including guest account) to remotely execute arbitrary code via a stack-based buffer overflow. There is no size verification logic in one of functions in libscheddl.so, and download_mgr.cgi makes it possible to enter large-sized f_idx inputs.

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