CVE-2021-45420

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Emerson Dixell XWEB-500 products are affected by arbitrary file write vulnerability in /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi. An attacker will be able to write any file on the target system without any kind of authentication mechanism, and this can lead to denial of service and potentially remote code execution. Note: the product has not been supported since 2018 and should be removed or replaced

Los productos Emerson Dixell XWEB-500 están afectados por una vulnerabilidad de escritura de archivos arbitrarios en los archivos /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi y /cgi-bin/lo_utils.cgi. Un atacante podrá escribir cualquier archivo en el sistema de destino sin ningún tipo de mecanismo de autenticación, y esto puede conllevar a una denegación de servicio y potencialmente una ejecución de código remota. Nota: el producto no presenta soporte desde 2018 y debe ser eliminado o reemplazado

*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

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-12-20 CVE Reserved
2022-02-14 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-09-20 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-306: Missing Authentication for Critical Function
CWE-668: Exposure of Resource to Wrong Sphere

CAPEC

References (3)

URL	Tag	Source
http://dixell.com	Product

URL	Date	SRC
https://www.swascan.com/emerson	2024-08-04

URL	Date	SRC

URL	Date	SRC
http://emerson.com	2024-05-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Emerson Search vendor "Emerson"	Dixell Xweb-500 Firmware Search vendor "Emerson" for product "Dixell Xweb-500 Firmware"	-	-	Affected	in	Emerson Search vendor "Emerson"	Dixell Xweb-500 Search vendor "Emerson" for product "Dixell Xweb-500"	-	-	Safe

* End Of Life in some or all products. Do not expect updates.