CVE-2021-27198 : Security Advisory and Response

An issue was discovered in Visualware MyConnection Server before v11.1a which allows unauthenticated remote code execution through arbitrary file upload in the web service.

Understanding CVE-2021-27198

This CVE identifies a vulnerability in Visualware MyConnection Server that enables attackers to execute code remotely without authentication.

What is CVE-2021-27198?

Visualware MyConnection Server before v11.1a is affected by an unauthenticated remote code execution flaw that allows attackers to upload arbitrary files via the web service URI. As the application is cross-platform and the Windows installation runs as SYSTEM, exploitation grants the attacker Administrator privileges.

The Impact of CVE-2021-27198

The impact of this CVE is severe as it allows attackers to execute code remotely without authentication, potentially leading to a complete compromise of the targeted system.

Technical Details of CVE-2021-27198

This section provides technical details of the vulnerability, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Visualware MyConnection Server enables unauthenticated remote code execution through arbitrary file upload in the web service URI.

Affected Systems and Versions

The vulnerability affects Visualware MyConnection Server before version v11.1a across all platforms.

Exploitation Mechanism

Attackers can exploit this vulnerability by using a specific URI in the web service to upload arbitrary files, granting them Administrator privileges on Windows systems.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the impact of CVE-2021-27198 and prevent future security breaches.

Immediate Steps to Take

Immediately update Visualware MyConnection Server to version v11.1a or above to patch the vulnerability and prevent exploitation.

Long-Term Security Practices

Implementing strong access controls, regular security assessments, and monitoring for suspicious activities can enhance the long-term security posture.

Patching and Updates

Regularly check for security patches and updates for Visualware MyConnection Server to address any known vulnerabilities and enhance system security.