CVE-2020-13389

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, and AC18 V15.03.05.19(6318_)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the /goform/openSchedWifi schedStartTime and schedEndTime parameters for a POST request, a value is directly used in a strcpy to a local variable placed on the stack, which overwrites the return address of a function. An attacker can construct a payload to carry out arbitrary code execution attacks.

Se detectó un problema en dispositivos Tenda AC6 versiones V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V15.03.06.42_multi, AC15 V1.0 V15.03.05.19_multi_TD01, y AC18 V15.03.05.19 (6318_)_CN. Se presenta una vulnerabilidad de desbordamiento de búfer en el servidor web del enrutador: httpd. Mientras se procesan los parámetros schedStartTime y schedEndTime de /goform/openSchedWifi para una petición POST, un valor es usado directamente en una strcpy para una variable local colocada en la pila, que sobrescribe la dirección de retorno de una función. Un atacante puede construir una carga útil para llevar a cabo ataques de ejecución de código arbitrario.

*Credits: N/A

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

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-05-22 CVE Reserved
2020-05-22 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (2)

URL	Tag	Source
https://joel-malwarebenchmark.github.io/blog/2020/04/28/cve-2020-13389-Tenda-vulnerability	Third Party Advisory

URL	Date	SRC
https://joel-malwarebenchmark.github.io	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tendacn Search vendor "Tendacn"	Ac6 Firmware Search vendor "Tendacn" for product "Ac6 Firmware"	v15.03.05.19_multi_td01 Search vendor "Tendacn" for product "Ac6 Firmware" and version "v15.03.05.19_multi_td01"	-	Affected	in	Tendacn Search vendor "Tendacn"	Ac6 Search vendor "Tendacn" for product "Ac6"	1.0 Search vendor "Tendacn" for product "Ac6" and version "1.0"	-	Safe
Tendacn Search vendor "Tendacn"	Ac9 Firmware Search vendor "Tendacn" for product "Ac9 Firmware"	v15.03.05.19\(6318\) Search vendor "Tendacn" for product "Ac9 Firmware" and version "v15.03.05.19\(6318\)"	-	Affected	in	Tendacn Search vendor "Tendacn"	Ac9 Search vendor "Tendacn" for product "Ac9"	1.0 Search vendor "Tendacn" for product "Ac9" and version "1.0"	-	Safe
Tendacn Search vendor "Tendacn"	Ac15 Firmware Search vendor "Tendacn" for product "Ac15 Firmware"	v15.03.05.19_multi_td01 Search vendor "Tendacn" for product "Ac15 Firmware" and version "v15.03.05.19_multi_td01"	-	Affected	in	Tendacn Search vendor "Tendacn"	Ac15 Search vendor "Tendacn" for product "Ac15"	1.0 Search vendor "Tendacn" for product "Ac15" and version "1.0"	-	Safe
Tendacn Search vendor "Tendacn"	Ac18 Firmware Search vendor "Tendacn" for product "Ac18 Firmware"	v15.03.05.19\(6318\) Search vendor "Tendacn" for product "Ac18 Firmware" and version "v15.03.05.19\(6318\)"	-	Affected	in	Tendacn Search vendor "Tendacn"	Ac18 Search vendor "Tendacn" for product "Ac18"	-	-	Safe
Tendacn Search vendor "Tendacn"	Ac9 Firmware Search vendor "Tendacn" for product "Ac9 Firmware"	v15.03.06.42_multi Search vendor "Tendacn" for product "Ac9 Firmware" and version "v15.03.06.42_multi"	-	Affected	in	Tendacn Search vendor "Tendacn"	Ac9 Search vendor "Tendacn" for product "Ac9"	3.0 Search vendor "Tendacn" for product "Ac9" and version "3.0"	-	Safe