CVE-2021-23921 Explained : Impact and Mitigation

A vulnerability has been identified in Devolutions Server before version 2020.3, leading to broken access control on Password List entry elements.

Understanding CVE-2021-23921

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-23921.

What is CVE-2021-23921?

CVE-2021-23921 refers to a security flaw in Devolutions Server that results in broken access control on Password List entry elements, affecting versions prior to 2020.3.

The Impact of CVE-2021-23921

The vulnerability allows unauthorized users to bypass access controls and potentially access sensitive Password List entries, posing a significant security risk to affected systems.

Technical Details of CVE-2021-23921

Below are the technical specifics associated with CVE-2021-23921.

Vulnerability Description

The flaw in Devolutions Server allows malicious actors to exploit broken access controls, compromising the confidentiality and integrity of Password List entries.

Affected Systems and Versions

Devolutions Server versions before 2020.3 are impacted by this vulnerability, exposing them to unauthorized access and potential data breaches.

Exploitation Mechanism

Attackers can exploit the broken access control mechanism to gain unauthorized entry into Password List elements, abusing the security gap to compromise sensitive information.

Mitigation and Prevention

To safeguard systems against CVE-2021-23921, it is crucial to implement immediate and long-term security measures.

Immediate Steps to Take

Upgrade Devolutions Server to version 2020.3 or above to patch the vulnerability.
Review and reinforce access control policies to limit unauthorized entry into Password List elements.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities from being exploited.
Conduct security audits to identify and address access control weaknesses within the system.

Patching and Updates

Stay informed about security advisories and apply patches promptly to mitigate the risk of unauthorized access to sensitive data.