CVE-2021-36547 : Vulnerability Insights and Analysis

A remote code execution vulnerability in Mara v7.5 allows attackers to execute arbitrary commands via a crafted PHP file.

Understanding CVE-2021-36547

This CVE describes a remote code execution vulnerability in the component '/codebase/dir.php?type=filenew' of Mara v7.5, potentially enabling attackers to run malicious commands.

What is CVE-2021-36547?

CVE-2021-36547 involves an RCE flaw in Mara v7.5, where attackers can exploit the '/codebase/dir.php?type=filenew' component to execute unauthorized commands by uploading a specially crafted PHP file.

The Impact of CVE-2021-36547

The impact of this vulnerability is severe as it allows threat actors to execute arbitrary commands, leading to unauthorized control over affected systems and potential data breaches.

Technical Details of CVE-2021-36547

This section provides technical insights into the vulnerability, including its description, affected systems, versions, and exploitation methods.

Vulnerability Description

The vulnerability stems from an RCE issue within the '/codebase/dir.php?type=filenew' component of Mara v7.5, enabling malicious actors to execute arbitrary commands through manipulated PHP files.

Affected Systems and Versions

All instances of Mara v7.5 are affected by this vulnerability, exposing them to exploitation by adversaries aiming to execute unauthorized commands remotely.

Exploitation Mechanism

Exploiting CVE-2021-36547 involves crafting a PHP file with specific commands and uploading it via the vulnerable '/codebase/dir.php?type=filenew' component to achieve remote code execution.

Mitigation and Prevention

Protecting systems from CVE-2021-36547 involves immediate actions, long-term security measures, and timely patching to prevent exploitation and secure environments.

Immediate Steps to Take

System administrators should restrict access to the '/codebase/dir.php?type=filenew' component, monitor for suspicious PHP file uploads, and deploy network-level defenses to detect and block malicious activities.

Long-Term Security Practices

Implementing strong access controls, conducting regular security audits, and educating users on safe file handling practices can enhance long-term security posture and mitigate similar vulnerabilities.

Patching and Updates

It is crucial to apply security patches released by Mara to address CVE-2021-36547 promptly. Regularly updating the Mara software will help eliminate known vulnerabilities and strengthen security defenses.