CVE-2021-36382 : Vulnerability Insights and Analysis

Devolutions Server before 2021.1.18, and LTS before 2020.3.20, allows attackers to intercept private keys via a man-in-the-middle attack against the connections/partial endpoint (which accepts cleartext).

Understanding CVE-2021-36382

This CVE identifies a vulnerability in Devolutions Server that could enable threat actors to intercept private keys through a man-in-the-middle attack.

What is CVE-2021-36382?

CVE-2021-36382 pertains to Devolutions Server versions prior to 2021.1.18 and LTS versions prior to 2020.3.20. Attackers exploit a vulnerability to intercept private keys by launching a man-in-the-middle attack on the connections/partial endpoint.

The Impact of CVE-2021-36382

The vulnerability poses a low severity risk with a CVSS base score of 2.6. It primarily affects confidentiality, with a requirement for user interaction to be carried out.

Technical Details of CVE-2021-36382

The following section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in Devolutions Server allows threat actors to conduct man-in-the-middle attacks and intercept private keys in specific affected versions.

Affected Systems and Versions

Devolutions Server versions before 2021.1.18 and LTS versions before 2020.3.20 are vulnerable to CVE-2021-36382.

Exploitation Mechanism

Attackers exploit this vulnerability by setting up a man-in-the-middle attack against the connections/partial endpoint, which accepts cleartext.

Mitigation and Prevention

This section outlines the actions necessary to mitigate and prevent the exploitation of CVE-2021-36382.

Immediate Steps to Take

Users are advised to update Devolutions Server to the patched versions to prevent private key interception. Implement network security measures to counter man-in-the-middle attacks.

Long-Term Security Practices

Regularly monitor for security updates and apply patches promptly. Employ encryption mechanisms for sensitive data transmission to protect against interception.

Patching and Updates

Ensure timely installation of security updates from Devolutions to address vulnerabilities like CVE-2021-36382.