CVE-2019-18930 — HIGH (8.8)

Vulnerability Description

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.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Western Digital	My Cloud Ex2 Ultra Firmware	2.31.183
Western Digital	My Cloud Ex2 Ultra	-

Related Weaknesses (CWE)

CWE-787

References

https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txtThird Party Advisory
https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930ExploitThird Party Advisory
https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930/description.txtThird Party Advisory
https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930ExploitThird Party Advisory

FAQ

What is CVE-2019-18930?

CVE-2019-18930 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 logi...

How severe is CVE-2019-18930?

CVE-2019-18930 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-18930?

Check the references section above for vendor advisories and patch information. Affected products include: Western Digital My Cloud Ex2 Ultra Firmware, Western Digital My Cloud Ex2 Ultra.