CVE-2021-27753 : Security Advisory and Response

A Path Traversal vulnerability has been identified in HCL Sametime versions 11.6.4 and below, known as the "Sametime Android Path Traversal Vulnerability". This CVE record was last updated on February 21, 2022, and was published by HCL.

Understanding CVE-2021-27753

This section delves into the details of CVE-2021-27753.

What is CVE-2021-27753?

The CVE-2021-27753, titled "Sametime Android Path Traversal Vulnerability", refers to an issue where there is an improper limitation of a pathname to a restricted directory in HCL Sametime versions 11.6.4 and earlier.

The Impact of CVE-2021-27753

The vulnerability could allow an attacker to access sensitive files on the system or perform unauthorized actions, posing a risk to the confidentiality and integrity of data.

Technical Details of CVE-2021-27753

In this section, we explore the technical aspects of CVE-2021-27753.

Vulnerability Description

The vulnerability arises due to improper directory path restrictions in HCL Sametime, enabling attackers to navigate to sensitive system files.

Affected Systems and Versions

The affected product is "HCL Sametime" with versions 11.6.4 and earlier.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating directory pathnames to access unauthorized directories.

Mitigation and Prevention

Learn about the necessary steps to mitigate and prevent the exploitation of CVE-2021-27753.

Immediate Steps to Take

Users are advised to update HCL Sametime to the latest version and restrict access to sensitive directories.

Long-Term Security Practices

Regularly update software, monitor for any unauthorized access, and implement strict access controls to enhance security.

Patching and Updates

Stay informed about security patches released by HCL and apply them promptly to address known vulnerabilities.