CVE-2019-6799 : Exploit Details and Defense Strategies

A vulnerability was found in phpMyAdmin prior to version 4.8.5 that could allow unauthorized access to sensitive files through a rogue MySQL server.

Understanding CVE-2019-6799

This CVE identifies a security issue in phpMyAdmin that could be exploited to gain unauthorized access to files.

What is CVE-2019-6799?

The vulnerability in phpMyAdmin before version 4.8.5 allows attackers to read any file accessible by the web server's user if the AllowArbitraryServer configuration is enabled.

The Impact of CVE-2019-6799

The vulnerability poses a risk of unauthorized access to sensitive files on the server, potentially leading to data breaches and unauthorized information disclosure.

Technical Details of CVE-2019-6799

This section provides technical details about the vulnerability.

Vulnerability Description

The issue is related to the mysql.allow_local_infile PHP configuration and the unintended disregard of certain calls, allowing attackers to exploit a rogue MySQL server.

Affected Systems and Versions

Product: phpMyAdmin
Vendor: Not applicable
Versions affected: All versions prior to 4.8.5

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the AllowArbitraryServer configuration to gain unauthorized access to files on the server.

Mitigation and Prevention

Protecting systems from CVE-2019-6799 requires immediate action and long-term security measures.

Immediate Steps to Take

Update phpMyAdmin to version 4.8.5 or later to mitigate the vulnerability.
Disable the AllowArbitraryServer configuration if not required.

Long-Term Security Practices

Regularly monitor and audit file access permissions on the web server.
Implement least privilege access controls to limit file access.

Patching and Updates

Stay informed about security updates for phpMyAdmin and apply patches promptly to address known vulnerabilities.