CVE-2021-43008 : Security Advisory and Response

CVE-2021-43008 relates to an Improper Access Control vulnerability in Adminer versions 1.12.0 to 4.6.2, allowing attackers to perform Arbitrary File Reads. The issue was rectified in version 4.6.3.

Understanding CVE-2021-43008

What is CVE-2021-43008?

The vulnerability in Adminer versions 1.12.0 to 4.6.2 permits attackers to attain Arbitrary File Read access on the remote server by prompting Adminer to connect to a remote MySQL database.

The Impact of CVE-2021-43008

This vulnerability could lead to potential unauthorized access to sensitive files on the affected server, risking data exposure and compromise.

Technical Details of CVE-2021-43008

Vulnerability Description

The flaw in Adminer versions 1.12.0 to 4.6.2 allows attackers to exploit improper access control, resulting in Arbitrary File Read capabilities on the remote server.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions Affected: 1.12.0 to 4.6.2

Exploitation Mechanism

Attackers can leverage this vulnerability by directing Adminer to connect to a remote MySQL database, enabling them to read arbitrary files on the server.

Mitigation and Prevention

Immediate Steps to Take

Upgrade to Adminer version 4.6.3 or later to address the vulnerability.
Regularly monitor and audit server logs for any suspicious activities.

Long-Term Security Practices

Implement strong access control mechanisms to restrict unauthorized access.
Conduct regular security assessments and penetration testing to uncover vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by Adminer.