// For flags

CVE-2019-18930

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

El firmware Western Digital My Cloud EX2 Ultra versión 2.31.183, permite a usuarios web (incluida la cuenta de invitado) ejecutar remotamente código arbitrario por medio de un desbordamiento de búfer en la región heap de la memoria. No existe una lógica de comprobación de tamaño en una de las funciones en el archivo libscheddl.so, y download_mgr.cgi hace posible ingresar entradas f_idx de gran tamaño.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-11-12 CVE Reserved
  • 2019-11-13 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Western Digital
Search vendor "Western Digital"
My Cloud Ex2 Ultra Firmware
Search vendor "Western Digital" for product "My Cloud Ex2 Ultra Firmware"
2.31.183
Search vendor "Western Digital" for product "My Cloud Ex2 Ultra Firmware" and version "2.31.183"
-
Affected
in Western Digital
Search vendor "Western Digital"
My Cloud Ex2 Ultra
Search vendor "Western Digital" for product "My Cloud Ex2 Ultra"
--
Safe