CVE-2016-1220 in Garoon
Summary
by MITRE
Cybozu Garoon before 4.2.2 does not properly restrict access.
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Analysis
by VulDB Data Team • 12/21/2020
The vulnerability identified as CVE-2016-1220 affects Cybozu Garoon versions prior to 4.2.2, representing a critical access control flaw that undermines the security posture of this collaborative platform. This issue stems from insufficient access restriction mechanisms within the application's authentication and authorization framework, creating potential pathways for unauthorized users to gain access to restricted resources and functionality. The vulnerability resides in the platform's inability to properly enforce access controls, which forms a fundamental weakness in its security architecture. Organizations utilizing Cybozu Garoon for business collaboration and document management face significant risks when operating vulnerable versions, as this flaw directly impacts the confidentiality, integrity, and availability of sensitive corporate data. The vulnerability is particularly concerning given that Garoon serves as a comprehensive business application platform that typically handles confidential business information, employee records, and collaborative workspaces where proper access controls are essential for maintaining information security.
The technical flaw manifests as a failure in the application's access control validation mechanisms, where the system does not adequately verify user permissions before granting access to specific features or data sets. This improper access restriction allows attackers to potentially bypass authentication checks and access resources they should not be authorized to view or modify. The vulnerability can be exploited through various attack vectors including but not limited to privilege escalation, unauthorized data access, and potential information disclosure. From a cybersecurity perspective, this represents a classic access control bypass vulnerability that aligns with CWE-285, which addresses improper authorization in software systems. The flaw likely exists in the application's session management, user role validation, or resource access controls, where insufficient input validation and access control checks permit unauthorized operations. Attackers could leverage this vulnerability to access administrative functions, view restricted documents, modify sensitive information, or potentially execute malicious actions within the platform's operational environment.
The operational impact of this vulnerability extends beyond immediate security concerns to encompass broader business continuity and regulatory compliance risks. Organizations may experience data breaches, intellectual property theft, and unauthorized modification of critical business information, potentially leading to significant financial losses and reputational damage. The vulnerability's exploitation could result in unauthorized access to sensitive employee data, business contracts, financial records, and strategic documents that are typically protected by access control mechanisms. From an enterprise risk management perspective, this vulnerability creates a substantial threat surface that could be leveraged by both internal and external threat actors. The impact is particularly severe given that Garoon is designed for enterprise collaboration environments where multiple users with varying permission levels interact with shared resources, making proper access control enforcement essential. Security incidents resulting from this vulnerability could trigger regulatory investigations, compliance violations, and potential legal consequences depending on the jurisdiction and applicable data protection regulations such as gdpr or hipaa.
Mitigation strategies for CVE-2016-1220 primarily focus on immediate remediation through the application of vendor-provided patches and updates to Cybozu Garoon versions 4.2.2 and later. Organizations should implement comprehensive vulnerability management processes to identify and remediate affected systems promptly. Security teams should conduct thorough assessments of their Garoon environments to identify any potential exploitation attempts and implement network segmentation to limit the attack surface. Additional defensive measures include strengthening authentication mechanisms, implementing robust monitoring and logging of access attempts, and conducting regular security audits of the platform's access control configurations. The remediation process should also involve reviewing and updating user access policies, ensuring proper role-based access control implementation, and conducting security training for administrators and users. Organizations may also consider implementing additional security controls such as web application firewalls, intrusion detection systems, and continuous monitoring solutions to detect and prevent exploitation attempts. From a compliance standpoint, organizations should document their remediation efforts and maintain audit trails demonstrating due diligence in addressing this vulnerability, particularly in regulated environments where information security controls are subject to regulatory scrutiny and audit requirements.