CVE-2021-27768 : Security Advisory and Response

This article provides details about a vulnerability affecting HCL Verse for Android related to SSL certificate host verification.

Understanding CVE-2021-27768

This CVE-2021-27768 vulnerability allows attackers to perform a Man-in-the-Middle (MITM) attack due to improper hostname verification.

What is CVE-2021-27768?

The CVE-2021-27768 vulnerability in HCL Verse for Android enables interception of sensitive account information by exploiting hostname verification issues in the application's network traffic.

The Impact of CVE-2021-27768

The severity of this vulnerability is rated as MEDIUM with high confidentiality impact and low integrity impact. The attack complexity is low, but user interaction is required.

Technical Details of CVE-2021-27768

This section provides deeper insights into the nature of the vulnerability.

Vulnerability Description

The SSL certificate host verification vulnerability in HCL Verse for Android exposes account information due to insecure hostname verification during network traffic interception.

Affected Systems and Versions

HCL Verse for Android versions prior to 12.0.9 are affected by this security flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability by setting up a proxy server in 'transparent' mode and intercepting network traffic with an invalid hostname certificate.

Mitigation and Prevention

Learn about the steps to mitigate and prevent exploitation of CVE-2021-27768.

Immediate Steps to Take

Users should update HCL Verse for Android to version 12.0.9 or newer to patch the SSL certificate host verification vulnerability.

Long-Term Security Practices

It is recommended to regularly update applications, use secure network connections, and implement hostname verification best practices to enhance security.

Patching and Updates

Stay informed about security patches and updates provided by HCL Software to address vulnerabilities like CVE-2021-27768.