CVE-2021-31783 : Security Advisory and Response
Learn about CVE-2021-31783, a vulnerability in the LocalFilesEditor extension for Piwigo, allowing attackers to include arbitrary files. Find out the impact, affected versions, and mitigation steps.
A detailed article outlining the CVE-2021-31783 vulnerability in the LocalFilesEditor extension for Piwigo.
Understanding CVE-2021-31783
This section provides insights into the nature and impact of the vulnerability.
What is CVE-2021-31783?
The CVE-2021-31783 vulnerability exists in the show_default.php file of the LocalFilesEditor extension for Piwigo. The issue arises due to improper validation of the 'file' parameter, leading to Local File Inclusion.
The Impact of CVE-2021-31783
The vulnerability allows attackers to include arbitrary files from the local system, potentially leading to unauthorized access, data leakage, or further exploitation of the affected system.
Technical Details of CVE-2021-31783
Explore the specific technical aspects of the CVE-2021-31783 vulnerability.
Vulnerability Description
The flaw results from a lack of proper validation on the 'file' parameter in show_default.php, enabling attackers to manipulate the parameter for malicious file inclusions.
Affected Systems and Versions
All versions of the LocalFilesEditor extension for Piwigo before 11.4.0.1 are affected by CVE-2021-31783.
Exploitation Mechanism
Attackers can exploit this vulnerability by providing a crafted file path in the 'file' parameter, tricking the application into including unauthorized files, leading to security compromise.
Mitigation and Prevention
Discover the recommended steps to mitigate and prevent the exploitation of CVE-2021-31783.
Immediate Steps to Take
Users are advised to update the LocalFilesEditor extension to version 11.4.0.1 or newer to address the vulnerability. Additionally, ensure that input validation and output encoding are implemented to prevent such security issues.
Long-Term Security Practices
Maintain a robust security posture by conducting regular security audits, implementing secure coding practices, and staying informed about security updates and patches.
Patching and Updates
Stay vigilant for security advisories from Piwigo and promptly apply patches and updates to ensure ongoing protection against known vulnerabilities.