CVE-2020-15248 : Security Advisory and Response

October CMS version 1.0.319 to 1.0.470 allows backend users with the "Publisher" role to escalate their access to "Developer".

Understanding CVE-2020-15248

This CVE involves privilege escalation in October CMS versions 1.0.319 to 1.0.470, enabling users with the "Publisher" role to elevate their permissions.

What is CVE-2020-15248?

In October CMS versions 1.0.319 to 1.0.470, users assigned the default "Publisher" role can manipulate user roles, potentially escalating their access to higher privileges.

The Impact of CVE-2020-15248

The vulnerability has a CVSS base score of 4 (Medium severity) and allows users with the "Publisher" role to gain unauthorized access, posing a risk of privilege escalation.

Technical Details of CVE-2020-15248

This section provides detailed technical information about the CVE.

Vulnerability Description

The issue in October CMS versions 1.0.319 to 1.0.470 allows users with the "Publisher" role to modify user roles, potentially granting themselves higher privileges.

Affected Systems and Versions

Product: October
Vendor: OctoberCMS
Versions Affected: >= 1.0.319, < 1.0.470

Exploitation Mechanism

Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
User Interaction: Required
Scope: Unchanged
Confidentiality, Integrity, and Availability Impact: Low

Mitigation and Prevention

Protect your systems from CVE-2020-15248 with these mitigation strategies.

Immediate Steps to Take

Update October CMS to version 1.0.470 or higher to apply the necessary patches.
Review and adjust user roles and permissions to limit the impact of potential privilege escalation.

Long-Term Security Practices

Regularly review and update user roles and permissions to ensure least privilege access.
Monitor user activities for any unauthorized changes or escalations.

Patching and Updates

Apply security patches promptly to address known vulnerabilities and prevent exploitation.