CVE-2021-31491 Explained : Impact and Mitigation
Learn about CVE-2021-31491, a critical vulnerability in OpenText Brava! Desktop 16.6.3.84, allowing remote attackers to execute arbitrary code. Understand the impact, technical details, and mitigation steps.
A detailed analysis of CVE-2021-31491, a vulnerability that allows remote attackers to execute arbitrary code on OpenText Brava! Desktop 16.6.3.84 installations.
Understanding CVE-2021-31491
This CVE discloses a critical vulnerability in OpenText Brava! Desktop, version 16.6.3.84, which could be exploited by remote attackers to run arbitrary code on the target system.
What is CVE-2021-31491?
CVE-2021-31491 is a flaw in the parsing of DWF files. It stems from inadequate validation of user-supplied data, enabling malicious actors to execute code in the current process.
The Impact of CVE-2021-31491
With a CVSS base score of 7.8, this vulnerability has a high severity impact on confidentiality, integrity, and availability. A successful exploit could lead to the execution of arbitrary code with no user privileges required.
Technical Details of CVE-2021-31491
This section covers specific technical details related to the vulnerability.
Vulnerability Description
The vulnerability arises due to the improper validation of user input, allowing attackers to write past the end of an allocated buffer, leading to the execution of malicious code.
Affected Systems and Versions
OpenText Brava! Desktop version 16.6.3.84 is affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by tricking a user into visiting a malicious page or opening a corrupted file, triggering the execution of arbitrary code.
Mitigation and Prevention
To safeguard systems from CVE-2021-31491, immediate steps, security practices, and patching are crucial.
Immediate Steps to Take
Users are advised to update Brava! Desktop to a non-vulnerable version, be cautious with file downloads, and avoid visiting untrusted websites.
Long-Term Security Practices
Regularly update software, use robust cybersecurity tools, and educate users on recognizing suspicious files and links.
Patching and Updates
Stay informed about security updates for OpenText Brava! Desktop and promptly apply patches to eliminate this vulnerability.