CVE-2020-5295 : What You Need to Know

OctoberCMS (october/october composer package) versions from 1.0.319 to 1.0.466 are vulnerable to a local file read exploit that allows an attacker to access files on the server.

Understanding CVE-2020-5295

In OctoberCMS versions 1.0.319 to 1.0.466, a vulnerability exists that enables authenticated backend users to read local files on the server.

What is CVE-2020-5295?

The vulnerability in OctoberCMS allows an attacker with specific permissions to read local files on the server, potentially exposing sensitive information.

The Impact of CVE-2020-5295

CVSS Base Score: 4.8 (Medium)
Attack Vector: Network
Privileges Required: High
User Interaction: Required
Scope: Changed
Exploitation: An authenticated backend user with the

cms.manage_assets

permission can exploit this vulnerability.

Technical Details of CVE-2020-5295

OctoberCMS vulnerability details and affected systems.

Vulnerability Description

The vulnerability allows an attacker to read local files on the OctoberCMS server, posing a risk of unauthorized access to sensitive data.

Affected Systems and Versions

Affected Product: October
Vendor: OctoberCMS
Vulnerable Versions: >= 1.0.319, < 1.0.466

Exploitation Mechanism

The exploit requires an authenticated backend user with the

cms.manage_assets

permission to access and read local files on the server.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-5295.

Immediate Steps to Take

Update OctoberCMS to Build 466 (v1.0.466) to patch the vulnerability.
Restrict backend user permissions to minimize the risk of exploitation.

Long-Term Security Practices

Regularly monitor and audit file access and permissions on the server.
Educate users on secure practices to prevent unauthorized access.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and enhance system security.