CVE-2020-27466 Explained : Impact and Mitigation

An arbitrary file write vulnerability in lib/AjaxHandlers/ajaxEditTemplate.php of rConfig 3.9.6 allows attackers to execute arbitrary code via a crafted file.

Understanding CVE-2020-27466

This CVE describes a critical vulnerability in rConfig that can lead to arbitrary code execution.

What is CVE-2020-27466?

The vulnerability allows attackers to write files arbitrarily, potentially leading to the execution of malicious code.

The Impact of CVE-2020-27466

This vulnerability can be exploited by attackers to execute unauthorized code on affected systems, posing a significant security risk.

Technical Details of CVE-2020-27466

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The vulnerability exists in lib/AjaxHandlers/ajaxEditTemplate.php of rConfig 3.9.6, enabling attackers to write files and execute malicious code.

Affected Systems and Versions

Affected Version: rConfig 3.9.6
All systems running this version are vulnerable to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a specific file to write arbitrary content, leading to code execution.

Mitigation and Prevention

To address CVE-2020-27466, the following steps are recommended:

Immediate Steps to Take

Disable access to the vulnerable component or apply a temporary workaround.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch the rConfig software to the latest version.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply patches provided by the rConfig vendor to fix the vulnerability and enhance system security.