CVE-2023-6341 in CMS360
Summary
by MITRE • 11/30/2023
Catalis (previously Icon Software) CMS360 allows a remote, unauthenticated attacker to view sensitive court documents by modifying document and other identifiers in URLs. The impact varies based on the intention and configuration of a specific CMS360 installation.
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Analysis
by VulDB Data Team • 11/30/2023
The vulnerability identified as CVE-2023-6341 affects Catalis CMS360, formerly known as Icon Software CMS360, presenting a critical access control flaw that enables remote attackers to bypass authentication mechanisms and access sensitive court documents. This vulnerability stems from insufficient input validation and inadequate authorization checks within the application's URL handling mechanisms, allowing malicious actors to manipulate document identifiers and other parameters to gain unauthorized access to protected information.
The technical implementation of this vulnerability resides in the application's weak parameter validation processes where URL-based document access is controlled through predictable or easily manipulable identifiers. Attackers can exploit this by simply modifying URL parameters such as document IDs, case numbers, or other unique identifiers to navigate to restricted content without proper authentication. This represents a classic authorization bypass vulnerability that falls under CWE-285, which addresses insufficient authorization within software systems. The flaw essentially allows for direct object reference manipulation, where the application fails to verify whether the authenticated user has proper permissions to access the requested resource.
The operational impact of this vulnerability extends beyond simple information disclosure, as it specifically targets court documents which typically contain highly sensitive personal and legal information. The severity of the impact varies significantly based on the specific CMS360 installation and its configuration, potentially exposing confidential case files, personal identifying information, legal proceedings, and other sensitive materials that should remain protected. This vulnerability directly impacts the confidentiality and integrity of judicial systems, potentially compromising ongoing legal proceedings and violating privacy regulations such as GDPR, HIPAA, or other applicable data protection laws. The attack vector requires no authentication credentials, making it particularly dangerous as it can be exploited by anyone with network access to the affected system.
Mitigation strategies should focus on implementing robust access control mechanisms that validate user permissions for each requested resource, regardless of URL parameters or identifiers used. Organizations should deploy proper input validation and sanitization processes to prevent parameter manipulation, implement proper session management, and establish role-based access controls that verify user authorization before granting access to sensitive documents. The implementation should follow ATT&CK framework tactic TA0001 (Initial Access) and technique T1078 (Valid Accounts) by ensuring that even with valid identifiers, unauthorized access attempts are properly blocked. Additional measures include logging and monitoring access attempts, implementing rate limiting to prevent automated enumeration attacks, and conducting regular security assessments to identify similar vulnerabilities in the system architecture. System administrators should also consider implementing network segmentation and web application firewalls to provide additional layers of protection against such exploitation attempts.