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CVE-2020-26030 : What You Need to Know

Discover the impact of CVE-2020-26030, an authentication bypass vulnerability in Zammad before 3.4.1, allowing unauthorized access and actions on behalf of other users. Learn how to mitigate and prevent this security issue.

An issue was discovered in Zammad before 3.4.1, allowing an authentication bypass in the SSO endpoint via a crafted header.

Understanding CVE-2020-26030

This CVE identifies a security vulnerability in Zammad that could lead to unauthorized access.

What is CVE-2020-26030?

The vulnerability in Zammad before version 3.4.1 enables attackers to bypass authentication in the SSO endpoint, potentially leading to unauthorized access.

The Impact of CVE-2020-26030

The vulnerability allows attackers to create authenticated sessions, granting them the ability to perform actions on behalf of other users.

Technical Details of CVE-2020-26030

This section provides more in-depth technical information about the CVE.

Vulnerability Description

An authentication bypass in the SSO endpoint of Zammad before 3.4.1 allows attackers to exploit a crafted header when SSO is not configured.

Affected Systems and Versions

        Product: Zammad
        Vendor: N/A
        Versions affected: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating headers to create a valid and authenticated session, gaining unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2020-26030 requires immediate action and long-term security measures.

Immediate Steps to Take

        Update Zammad to version 3.4.1 or later to mitigate the vulnerability.
        Configure SSO properly to prevent unauthorized access.

Long-Term Security Practices

        Regularly monitor and audit authentication mechanisms.
        Implement multi-factor authentication for enhanced security.

Patching and Updates

        Stay informed about security advisories from Zammad and apply patches promptly to address known vulnerabilities.

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