// For flags

CVE-2020-10882

TP-Link Archer A7 tdpServer Command Injection Remote Code Execution Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

3
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tdpServer service, which listens on UDP port 20002 by default. When parsing the slave_mac parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9650.

Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar código arbitrario sobre las instalaciones afectadas de enrutadores AC1750 TP-Link Archer A7 Versión de Firmware: 190726. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del servicio tdpServer, que escucha en el puerto UDP 20002 por defecto. Al analizar el parámetro slave_mac, el proceso no comprueba apropiadamente una cadena proporcionada por el usuario antes de usarla para ejecutar una llamada de sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del usuario raíz. Fue ZDI-CAN-9650.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer A7 AC1750 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the tdpServer service, which listens on UDP port 20002 by default. When parsing the slave_mac parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the root user.

*Credits: Pedro Ribeiro and Radek Domanski of Team Flashback
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
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
  • 2020-03-24 CVE Reserved
  • 2020-03-25 CVE Published
  • 2020-04-16 First Exploit
  • 2023-07-29 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tp-link
Search vendor "Tp-link"
Ac1750 Firmware
Search vendor "Tp-link" for product "Ac1750 Firmware"
190726
Search vendor "Tp-link" for product "Ac1750 Firmware" and version "190726"
-
Affected
in Tp-link
Search vendor "Tp-link"
Ac1750
Search vendor "Tp-link" for product "Ac1750"
--
Safe