CVE-2017-5541 Explained : Impact and Mitigation

A vulnerability related to directory traversal in Symphony CMS versions prior to 2.6.10 allows attackers to rename files by exploiting specific parameters.

Understanding CVE-2017-5541

This CVE involves a directory traversal vulnerability in Symphony CMS that enables attackers to manipulate file names.

What is CVE-2017-5541?

The vulnerability allows remote attackers to rename arbitrary files by utilizing ".." in certain parameters within the Symphony CMS.

The Impact of CVE-2017-5541

This vulnerability can be exploited by malicious actors to rename files of their choice, potentially leading to unauthorized access or data manipulation.

Technical Details of CVE-2017-5541

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability exists in the template/usererror.missing_extension.php file of Symphony CMS versions prior to 2.6.10, allowing attackers to rename files through directory traversal.

Affected Systems and Versions

Affected System: Symphony CMS
Affected Versions: Symphony CMS versions before 2.6.10

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the parameters for existing-folder and new-folder using ".." to rename files.

Mitigation and Prevention

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

Immediate Steps to Take

Update Symphony CMS to version 2.6.10 or later to mitigate the vulnerability.
Monitor file renaming activities for suspicious behavior.

Long-Term Security Practices

Implement secure coding practices to prevent directory traversal vulnerabilities.
Regularly audit and review file system permissions to restrict unauthorized access.

Patching and Updates

Apply patches and updates provided by Symphony CMS to address security vulnerabilities promptly.