Stack-based Buffer Overflow in Western Digital My Cloud EX2 Ultra Firmware
CVE-2019-18930

8.8HIGH

Key Information:

Vendor

Western Digital

Status
My Cloud Ex2 Ultra Firmware
Vendor
CVE Published:
13 November 2019

What is CVE-2019-18930?

The My Cloud EX2 Ultra firmware 2.31.183 from Western Digital is compromised by a stack-based buffer overflow vulnerability. This flaw allows remote users, including those accessing via guest accounts, to execute arbitrary code due to a lack of size verification in certain functions (specifically in libscheddl.so). Attackers can exploit this by providing oversized inputs to the f_idx parameter in the download_mgr.cgi script, potentially leading to severe security breaches.

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References

https://github.com/DelspoN/CVE/blob/master/CVE-2019-18930...
x_refsource_MISC
https://github.com/DelspoN/CVE/tree/master/CVE-2019-18930
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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