CVE-2021-31503 : Security Advisory and Response

This CVE-2021-31503 affects OpenText Brava! Desktop Build 16.6.3.84 (package 16.6.3.134) allowing remote attackers to execute arbitrary code. User interaction is required for exploitation. The vulnerability is assigned as ZDI-CAN-12690.

Understanding CVE-2021-31503

In this section, we will explore the details and impact of CVE-2021-31503.

What is CVE-2021-31503?

The vulnerability in OpenText Brava! Desktop allows attackers to run malicious code on affected systems by manipulating IGS files. Lack of proper pointer initialization leads to code execution.

The Impact of CVE-2021-31503

The impact of this vulnerability is rated as HIGH, with attackers needing user interaction to trigger the exploit. It can result in confidentiality, integrity, and availability issues.

Technical Details of CVE-2021-31503

Let's dive into the technical aspects of CVE-2021-31503 to understand the vulnerability further.

Vulnerability Description

The flaw arises from the improper handling of pointers during IGS file parsing, enabling attackers to execute code within the current process.

Affected Systems and Versions

OpenText Brava! Desktop Version Build 16.6.3.84 (package 16.6.3.134) is affected by this vulnerability.

Exploitation Mechanism

To exploit this vulnerability, attackers must trick users into visiting a malicious page or opening a crafted file, leading to arbitrary code execution.

Mitigation and Prevention

Learn how to safeguard your systems against CVE-2021-31503 in this section.

Immediate Steps to Take

Users are advised to avoid opening unknown files or visiting suspicious websites to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust security measures, such as regular software updates and user awareness training, can help prevent similar vulnerabilities.

Patching and Updates

OpenText has provided patches or updates to address this vulnerability. Ensure that you apply the latest security fixes to stay protected.