CVE-2017-7694 : Exploit Details and Defense Strategies

A vulnerability has been discovered in Symphony CMS versions up to 2.6.11, allowing remote attackers to execute code and gain access to a webshell from the backend system.

Understanding CVE-2017-7694

This CVE identifies a Remote Code Execution vulnerability in Symphony CMS.

What is CVE-2017-7694?

The vulnerability in the file content.blueprintsdatasources.php in Symphony CMS versions up to 2.6.11 enables remote attackers to execute code and obtain a webshell from the backend system. Attackers must be authenticated to exploit this vulnerability by inserting PHP code in the datasource or event editor.

The Impact of CVE-2017-7694

The vulnerability allows attackers to execute arbitrary code on the affected system, potentially leading to unauthorized access and control over the web application.

Technical Details of CVE-2017-7694

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in Symphony CMS versions up to 2.6.11 allows remote attackers to execute code and gain a webshell from the backend system.

Affected Systems and Versions

Symphony CMS versions up to 2.6.11

Exploitation Mechanism

To exploit this vulnerability, attackers need to be authenticated and insert PHP code in either the datasource editor or the event editor.

Mitigation and Prevention

Protecting systems from CVE-2017-7694 is crucial to maintaining security.

Immediate Steps to Take

Update Symphony CMS to version 2.6.12 or later to mitigate the vulnerability.
Monitor for any unauthorized access or suspicious activities on the system.

Long-Term Security Practices

Regularly review and update access controls and user permissions within Symphony CMS.
Conduct security audits and penetration testing to identify and address any potential vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Symphony CMS.
Apply patches promptly to ensure the system is protected against known vulnerabilities.