CVE-2021-27198

VisualWare MyConnection Server 11.0b Remote Code Execution

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 in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.

Se ha descubierto un problema en Visualware MyConnection Server antes de la versión 11.1a. La ejecución remota de código no autenticada puede ocurrir a través de la carga arbitraria de archivos en el servicio web cuando se utiliza un URI myspeed/sf?filename=. Esta aplicación está escrita en Java y, por tanto, es multiplataforma. La instalación de Windows se ejecuta como SYSTEM, lo que significa que la explotación otorga privilegios de administrador en el sistema de destino

VisualWare MyConnection Server version 11.0b suffers from a remote code execution vulnerability. The vendor has addressed this issue in MyConnection Server release 11.1a build 5522.

*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

2021-02-12 CVE Reserved
2021-02-26 CVE Published
2023-10-25 First Exploit
2024-04-29 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (6)

URL	Tag	Source
http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.html	Third Party Advisory
http://seclists.org/fulldisclosure/2021/Feb/81	Mailing List
https://www.securifera.com/advisories/cve-2021-27198	Third Party Advisory

URL	Date	SRC
https://github.com/rwincey/CVE-2021-27198	2023-10-25

URL	Date	SRC

URL	Date	SRC
https://myconnectionserver.visualware.com/download.html	2021-09-14
https://myconnectionserver.visualware.com/support/newrelease.html	2021-09-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Visualware Search vendor "Visualware"		Myconnection Server Search vendor "Visualware" for product "Myconnection Server"				< 11.1a Search vendor "Visualware" for product "Myconnection Server" and version " < 11.1a"		-		Affected