// For flags

CVE-2017-8408

Dlink DCS-1130 Command Injection / CSRF / Stack Overflow

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered on D-Link DCS-1130 devices. The device provides a user with the capability of setting a SMB folder for the video clippings recorded by the device. It seems that the GET parameters passed in this request (to test if SMB credentials and hostname sent to the device work properly) result in being passed as commands to a "system" API in the function and thus result in command injection on the device. If the firmware version is dissected using binwalk tool, we obtain a cramfs-root archive which contains the filesystem set up on the device that contains all the binaries. The binary "cgibox" is the one that has the vulnerable function "sub_7EAFC" that receives the values sent by the GET request. If we open this binary in IDA-pro we will notice that this follows a ARM little endian format. The function sub_7EAFC in IDA pro is identified to be receiving the values sent in the GET request and the value set in GET parameter "user" is extracted in function sub_7E49C which is then passed to the vulnerable system API call.

Se descubrió un problema en los dispositivos D-Link DCS-1130. El dispositivo proporciona al usuario la capacidad de configurar una carpeta SMB para los recortes de video grabados por el dispositivo. Parece que los parámetros GET pasados ??en esta solicitud (para probar si las credenciales SMB y el nombre de host enviados al dispositivo funcionan correctamente) dan como resultado que se pasen como comandos a una API de "sistema" en la función y, por lo tanto, resulten en una inyección de comandos en el dispositivo. Si la versión del firmware se disecciona con la herramienta binwalk, obtenemos un archivo cramfs-root que contiene el sistema de archivos configurado en el dispositivo que contiene todos los archivos binarios. El binario "cgibox" es el que tiene la función vulnerable "sub_7EAFC" que recibe los valores enviados por la solicitud GET. Si abrimos este binario en IDA-pro, notaremos que esto sigue un formato ARM en little endian. La función sub_7EAFC en IDA pro está identificada para recibir los valores enviados en la solicitud GET y el valor establecido en el parámetro GET "usuario" se extrae en la función sub_7E49C que luego se pasa a la llamada API del sistema vulnerable.

Dlink DCS-1130 suffers from command injection, cross site request forgery, stack overflow, and various other vulnerabilities.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-05-02 CVE Reserved
  • 2019-06-07 CVE Published
  • 2019-06-07 First Exploit
  • 2024-08-05 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Dlink
Search vendor "Dlink"
 Dcs-1130 Firmware
Search vendor "Dlink" for product "Dcs-1130 Firmware"
--
Affected
in Dlink
Search vendor "Dlink"
 Dcs-1130
Search vendor "Dlink" for product "Dcs-1130"
--
Safe