CVE-2021-27773 : Security Advisory and Response

HCL Sametime is vulnerable to a clickjacking attack that affects version 11.6. This vulnerability was made public on April 15, 2022.

Understanding CVE-2021-27773

This CVE identifies a security flaw in HCL Sametime that can be exploited for clickjacking attacks in chat meetings.

What is CVE-2021-27773?

CVE-2021-27773 is a vulnerability in HCL Sametime that allows malicious users to perform clickjacking attacks within chat meetings.

The Impact of CVE-2021-27773

With a CVSS base score of 4.2 (Medium severity), this vulnerability could lead to unauthorized user interactions and potentially compromise confidentiality and integrity.

Technical Details of CVE-2021-27773

The technical details of CVE-2021-27773 shed light on how the vulnerability can be leveraged.

Vulnerability Description

The vulnerability enables attackers to conduct clickjacking attacks within HCL Sametime chat meetings.

Affected Systems and Versions

HCL Sametime version 11.6 is known to be impacted by this vulnerability.

Exploitation Mechanism

Malicious users can exploit this vulnerability to launch clickjacking attacks, manipulating user interactions during chat meetings.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2021-27773 is crucial for ensuring system security.

Immediate Steps to Take

Users should exercise caution during Sametime chat meetings and be wary of potential clickjacking attempts.

Long-Term Security Practices

Regular security awareness training and monitoring for suspicious activities can enhance long-term security postures.

Patching and Updates

HCL may release patches or updates to address CVE-2021-27773. Ensure systems are promptly updated to mitigate the risk.