CVE-2018-14557

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 devices with firmware through V15.03.06.44_CN(AC7), AC9 devices with firmware through V15.03.05.19(6318)_CN(AC9), and AC10 devices with firmware through V15.03.06.23_CN(AC10). A buffer overflow vulnerability exists in the router's web server (httpd). When processing the page parameters for a post request, the value is directly written with sprintf to a local variable placed on the stack, which overrides the return address of the function, a causing buffer overflow.

Se descubrió un problema en los dispositivos Tenda AC7 con firmware a través de la versión V15.03.06.44_CN (AC7), dispositivos AC9 con firmware a través de la versión V15.03.05.19 (6318) _CN (AC9), y dispositivos AC10 con firmware a través de la versión V15.03.06.23_CN ( AC10). Existe una vulnerabilidad de desbordamiento de búfer en el servidor web del router (httpd). Cuando son procesados los parámetros page para una solicitud post, el valor se escribe directamente con sprintf hacia una variable local colocada en la pila, que anula la dirección de retorno de la función, lo que provoca un desbordamiento del búfer.

*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

2018-07-23 CVE Reserved
2019-04-25 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- 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/zsjevilhex/iot/blob/master/route/tenda/tenda-03/Tenda.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