CVE-2021-31506 Explained : Impact and Mitigation
Learn about CVE-2021-31506, a low-severity vulnerability in OpenText Brava! Desktop version Build 16.6.4.55. Discover the impact, affected systems, exploitation details, and mitigation steps.
A detailed article outlining the vulnerability identified as CVE-2021-31506 in the OpenText Brava! Desktop software build 16.6.4.55. This article covers the technical details, impact, and mitigation strategies.
Understanding CVE-2021-20657
CVE-2021-31506 is a vulnerability that allows remote attackers to disclose sensitive information on installations of OpenText Brava! Desktop build 16.6.4.55. The flaw exists within the parsing of PDF files and could potentially lead to code execution.
What is CVE-2021-20657?
This vulnerability in OpenText Brava! Desktop Build 16.6.4.55 enables remote attackers to access sensitive information through the improper validation of user-supplied data within PDF file parsing. Exploitation requires user interaction by visiting a malicious page or opening a malicious file.
The Impact of CVE-2021-20657
The impact of CVE-2021-31506 includes the potential disclosure of sensitive information and the execution of arbitrary code in the context of the current process. The severity is rated as low with a CVSS base score of 3.3.
Technical Details of CVE-2021-20657
This section delves into the vulnerability's description, affected systems, and the exploitation mechanism.
Vulnerability Description
The specific flaw in OpenText Brava! Desktop Build 16.6.4.55 arises from the absence of proper validation of user-supplied data, leading to a read past the end of an allocated data structure. This could allow attackers to execute arbitrary code.
Affected Systems and Versions
The affected product is 'Brava! Desktop' by OpenText, specifically version Build 16.6.4.55.
Exploitation Mechanism
To exploit this vulnerability, a user must engage with a malicious page or file, triggering the improper data validation in PDF file parsing.
Mitigation and Prevention
Discover the necessary steps to secure your systems from CVE-2021-31506.
Immediate Steps to Take
Users must apply security updates promptly and avoid interaction with suspicious or untrusted documents or websites that could trigger the vulnerability.
Long-Term Security Practices
Implement secure coding practices, conduct regular security audits, and stay informed about potential security vulnerabilities in software.
Patching and Updates
OpenText users should monitor official security advisories and apply patches provided by the vendor to address CVE-2021-31506 effectively.