CVE-2018-18731

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, 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 'deviceMac' parameter for a post request, the value is directly used in a sprintf to a local variable placed on the stack, which overrides the return address of the function.

Se ha descubierto un problema en dispositivos Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN y AC18 V15.03.05.19(6318)_CN. Es una vulnerabilidad de desbordamiento de búfer en el servidor web del router, httpd. Al procesar el parámetro deviceMac para una petición POST, el valor se emplea directamente en una llamada sprintf a una variable local colocada en la pila, que sobrescribe la dirección de retorno de la función.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-27 CVE Reserved
2018-10-28 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-09-06 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/ZIllR0/Routers/blob/master/Tenda/stack4.md	2024-08-05

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
Tenda Search vendor "Tenda"	Ac7 Firmware Search vendor "Tenda" for product "Ac7 Firmware"	15.03.06.44_cn Search vendor "Tenda" for product "Ac7 Firmware" and version "15.03.06.44_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac7 Search vendor "Tenda" for product "Ac7"	-	-	Safe
Tenda Search vendor "Tenda"	Ac9 Firmware Search vendor "Tenda" for product "Ac9 Firmware"	15.03.05.19\(6318\)_cn Search vendor "Tenda" for product "Ac9 Firmware" and version "15.03.05.19\(6318\)_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac9 Search vendor "Tenda" for product "Ac9"	-	-	Safe
Tenda Search vendor "Tenda"	Ac10 Firmware Search vendor "Tenda" for product "Ac10 Firmware"	15.03.06.23_cn Search vendor "Tenda" for product "Ac10 Firmware" and version "15.03.06.23_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac10 Search vendor "Tenda" for product "Ac10"	-	-	Safe
Tenda Search vendor "Tenda"	Ac15 Firmware Search vendor "Tenda" for product "Ac15 Firmware"	15.03.05.19_cn Search vendor "Tenda" for product "Ac15 Firmware" and version "15.03.05.19_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac15 Search vendor "Tenda" for product "Ac15"	-	-	Safe
Tenda Search vendor "Tenda"	Ac18 Firmware Search vendor "Tenda" for product "Ac18 Firmware"	15.03.05.19\(6318\)_cn Search vendor "Tenda" for product "Ac18 Firmware" and version "15.03.05.19\(6318\)_cn"	-	Affected	in	Tenda Search vendor "Tenda"	Ac18 Search vendor "Tenda" for product "Ac18"	-	-	Safe