CVE-2004-2357 in Protection Server
Summary
by MITRE
The embedded MySQL 4.0 server for Proofpoint Protection Server does not require a password for the root user of MySQL, which allows remote attackers to read or modify the backend database.
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Analysis
by VulDB Data Team • 07/17/2017
The vulnerability described in CVE-2004-2357 represents a critical authentication flaw within the Proofpoint Protection Server's embedded MySQL 4.0 database implementation. This issue stems from a fundamental misconfiguration where the root user account lacks any password protection, creating an inherent security weakness that exposes the entire database backend to unauthorized access. The flaw exists specifically within the embedded database server component that Proofpoint utilizes for its email protection services, making it a software-specific vulnerability rather than a generic database issue.
This authentication bypass vulnerability falls under the category of weak credential management and insecure default configurations, which are commonly categorized as CWE-521 Weak Password Requirements and CWE-798 Use of Hard-coded Credentials. The technical implementation flaw occurs at the database initialization level where default accounts are created without proper authentication mechanisms. The absence of password enforcement for the root user creates a direct pathway for remote attackers to establish database connections without any authorization checks, fundamentally undermining the security model of the protection server.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with unrestricted access to the backend database containing sensitive email protection data, including user configurations, email logs, threat intelligence, and potentially customer information. Remote attackers can leverage this weakness to perform data read operations, modify critical database entries, inject malicious content, or even execute destructive operations that could compromise the entire email protection infrastructure. This vulnerability directly enables data breaches, system compromise, and potential escalation to broader network attacks through the database access point.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1078 Valid Accounts, as it exploits legitimate administrative accounts without requiring additional credential theft or privilege escalation. The attack surface is particularly concerning given that Proofpoint Protection Servers are deployed in enterprise environments where they handle sensitive corporate email traffic and security data. Organizations using this software would be vulnerable to attackers who could gain complete administrative control over their email protection systems, potentially leading to data exfiltration, email spoofing, or disruption of critical communication infrastructure.
The recommended mitigations for this vulnerability include immediate implementation of password policies for all database accounts, particularly the root user account, and regular security audits of embedded database configurations. Organizations should ensure that default database accounts are disabled or have strong, unique passwords assigned. Additionally, network segmentation should be implemented to restrict access to database ports, and regular monitoring should be established to detect unauthorized database access attempts. The vulnerability also highlights the importance of proper security hardening procedures for embedded database systems and the necessity of following secure configuration guidelines for database servers in production environments.