CVE-2018-18942 : Vulnerability Insights and Analysis

A vulnerability exists in versions of baserCMS prior to 4.1.4, allowing remote attackers to execute arbitrary PHP code.

Understanding CVE-2018-18942

This CVE identifies a security flaw in baserCMS that can be exploited by manipulating a specific parameter.

What is CVE-2018-18942?

In baserCMS versions before 4.1.4, a vulnerability in the lib\Baser\Model\ThemeConfig.php file enables remote attackers to execute arbitrary PHP code by altering the admin/theme_configs/form data[ThemeConfig][logo] parameter.

The Impact of CVE-2018-18942

This vulnerability poses a significant risk as it allows attackers to execute malicious PHP code on the target system, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2018-18942

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in baserCMS versions prior to 4.1.4 permits remote attackers to execute arbitrary PHP code through manipulation of the admin/theme_configs/form data[ThemeConfig][logo] parameter in the lib\Baser\Model\ThemeConfig.php file.

Affected Systems and Versions

Affected Version: baserCMS versions before 4.1.4

Exploitation Mechanism

Attackers exploit the vulnerability by tampering with the admin/theme_configs/form data[ThemeConfig][logo] parameter in the lib\Baser\Model\ThemeConfig.php file.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security measures.

Immediate Steps to Take

Upgrade baserCMS to version 4.1.4 or later to mitigate the vulnerability.
Monitor for any unauthorized access or suspicious activities on the system.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement strong access controls and authentication mechanisms to prevent unauthorized access.
Conduct regular security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Apply patches and updates provided by baserCMS promptly to ensure the system is protected against known vulnerabilities.