CVE-2021-39433 : Security Advisory and Response

This CVE-2021-39433 article provides insights into a local file inclusion vulnerability in BIQS IT Biqs-drive v1.83 and earlier versions, detailing its impact, technical aspects, and mitigation strategies.

Understanding CVE-2021-39433

This section delves into the details of the CVE-2021-39433 vulnerability.

What is CVE-2021-39433?

CVE-2021-39433 is a local file inclusion (LFI) vulnerability present in BIQS IT Biqs-drive v1.83 and below. By exploiting this flaw, an attacker can access arbitrary files from the server.

The Impact of CVE-2021-39433

The vulnerability allows attackers to read files on the server using the permissions of the configured web-user.

Technical Details of CVE-2021-39433

Exploring the technical aspects of the CVE-2021-39433 vulnerability.

Vulnerability Description

The LFI vulnerability occurs when sending a specific payload as the file parameter to download/index.php in BIQS IT Biqs-drive v1.83 and earlier.

Affected Systems and Versions

Product: BIQS IT Biqs-drive
Version: v1.83 and below

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the file parameter in download/index.php, allowing them to access unauthorized files.

Mitigation and Prevention

Understanding how to mitigate the risks associated with CVE-2021-39433.

Immediate Steps to Take

Update BIQS IT Biqs-drive to the latest version.
Implement proper input validation to prevent malicious file inclusions.

Long-Term Security Practices

Regularly audit and monitor file access permissions.
Conduct security assessments to identify and address vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by BIQS IT Biqs-drive.