CVE-2021-27761 Explained : Impact and Mitigation

HCL BigFix Platform is affected by weak web transport security.

Understanding CVE-2021-27761

This CVE involves weak web transport security in the BigFix Platform by HCL Software, potentially allowing attackers to decrypt data through certain attacks.

What is CVE-2021-27761?

The vulnerability in the BigFix Platform pertains to weak web transport security, specifically Weak TLS, posing a risk of data decryption by malicious actors.

The Impact of CVE-2021-27761

With a CVSS base score of 4.8 (Medium severity), this vulnerability could lead to data confidentiality and integrity compromises due to weak TLS protection.

Technical Details of CVE-2021-27761

This section outlines the specific technical aspects of CVE-2021-27761.

Vulnerability Description

The weakness in web transport security within BigFix Platform versions 9.5 - 9.5.18 and 10 - 10.0.5 enables potential data decryption attacks, exploiting inadequate TLS safeguards.

Affected Systems and Versions

The versions impacted by this vulnerability include BigFix Platform 9.5 - 9.5.18 and 10 - 10.0.5.

Exploitation Mechanism

Attackers with network access can exploit this weak TLS vulnerability to decrypt sensitive data without requiring any special privileges.

Mitigation and Prevention

In this section, we discuss the necessary steps to mitigate and prevent exploitation of CVE-2021-27761.

Immediate Steps to Take

Organizations using affected versions should apply security patches promptly and monitor network traffic for any signs of unauthorized data access.

Long-Term Security Practices

Enhancing overall network encryption protocols, restricting external network access, and implementing regular security audits are recommended for long-term mitigation.

Patching and Updates

HCL Software has released patches addressing this vulnerability. Ensure timely installation of these updates to secure the BigFix Platform against potential attacks.