CVE-2022-30117 : Vulnerability Insights and Analysis

This CVE-2022-30117 concerns the Concrete CMS versions 8.5.7 and below, as well as versions 9.0 through 9.0.2, allowing traversal in /index.php/ccm/system/file/upload, potentially resulting in an Arbitrary File Delete exploit.

Understanding CVE-2022-30117

This vulnerability, ranked 5.8 with CVSS v3.1 vector AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H, was reported by Siebene and addressed by the Concrete CMS Security team.

What is CVE-2022-30117?

Concrete CMS versions 8.5.7 and below, along with versions 9.0 through 9.0.2, are susceptible to traversal in /index.php/ccm/system/file/upload, potentially leading to an Arbitrary File Delete exploit.

The Impact of CVE-2022-30117

The vulnerability could allow an attacker to perform arbitrary file deletions, posing a risk to the confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2022-30117

The following details outline the vulnerability's specifics:

Vulnerability Description

The issue was remediated by sanitizing /index.php/ccm/system/file/upload and adjusting isFullChunkFilePresent to prevent unauthorized traversal.

Affected Systems and Versions

Versions affected include Concrete CMS 8.5.7 and below, as well as Concrete 9.0 through 9.0.2.

Exploitation Mechanism

Attackers could exploit the traversal vulnerability in /index.php/ccm/system/file/upload to delete arbitrary files on the target system.

Mitigation and Prevention

To mitigate the CVE-2022-30117 vulnerability, follow these recommendations:

Immediate Steps to Take

Upgrade to the remediated versions: Concrete CMS 8.5.8 and 9.1.0.
Validate user input to prevent path traversal attacks.

Long-Term Security Practices

Regularly update the CMS to the latest version to patch security vulnerabilities.
Implement file upload restrictions to prevent unauthorized access.

Patching and Updates

Stay informed about security updates and apply patches promptly to protect against potential exploits.