CVE-2020-14213 : Security Advisory and Response

In Zammad before 3.3.1, a Customer has unauthorized ticket access that should only be available to an Agent.

Understanding CVE-2020-14213

This CVE identifies a security vulnerability in Zammad that allows a Customer to access ticket functionalities meant for Agents.

What is CVE-2020-14213?

This vulnerability in Zammad before version 3.3.1 enables Customers to perform actions reserved for Agents, potentially compromising sensitive data.

The Impact of CVE-2020-14213

The vulnerability could lead to unauthorized access to internal data, ticket splitting, merging, and other Agent-exclusive functions.

Technical Details of CVE-2020-14213

Zammad before version 3.3.1 is affected by this security flaw.

Vulnerability Description

Customers can exploit the vulnerability to gain access to Agent-level ticket functionalities.

Affected Systems and Versions

Product: Zammad
Vendor: N/A
Versions affected: All versions before 3.3.1

Exploitation Mechanism

Unauthorized Customers can exploit the vulnerability to access and manipulate tickets beyond their permissions.

Mitigation and Prevention

Immediate action is necessary to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Upgrade Zammad to version 3.3.1 or later to mitigate the vulnerability.
Monitor and restrict Customer access to Agent functionalities.

Long-Term Security Practices

Regularly review and update access controls within Zammad.
Educate users on proper ticket handling procedures to prevent unauthorized access.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.