CVE-2023-6342 in Court Case Management Plus
Summary
by MITRE • 11/30/2023
Tyler Technologies Court Case Management Plus allows a remote attacker to authenticate as any user by manipulating at least the 'CmWebSearchPfp/Login.aspx?xyzldk=' and 'payforprint_CM/Redirector.ashx?userid=' parameters. The vulnerable "pay for print" feature was removed on or around 2023-11-01.
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Analysis
by VulDB Data Team • 12/21/2023
The vulnerability identified as CVE-2023-6342 affects Tyler Technologies Court Case Management Plus software, representing a critical authentication bypass flaw that enables remote attackers to impersonate any user within the system. This weakness stems from improper input validation and authentication handling within the web application's login and redirector components. The vulnerability specifically manifests through manipulation of two key parameters: the 'CmWebSearchPfp/Login.aspx?xyzldk=' endpoint and the 'payforprint_CM/Redirector.ashx?userid=' handler, which together create an exploitable path for unauthorized access to the court case management system. The affected system operates within the legal technology sector, where unauthorized access could compromise sensitive judicial data and case information.
The technical implementation of this vulnerability involves parameter manipulation that allows attackers to bypass the standard authentication process by crafting specific values for the xyzldk and userid parameters. This flaw represents a classic case of insufficient input sanitization and improper access control enforcement, where the application fails to properly validate user credentials and session management. The vulnerability's exploitation pathway demonstrates a lack of proper authentication checks and authorization controls, enabling attackers to authenticate as any user without proper credentials. This weakness can be categorized under CWE-287 which addresses improper authentication issues, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential harvesting through web application attacks. The vulnerability's persistence stems from the web application's trust in user-supplied parameters without adequate validation or access control verification.
The operational impact of CVE-2023-6342 extends beyond simple unauthorized access, potentially enabling attackers to manipulate court records, alter case files, and access sensitive legal information. The vulnerability affects the integrity and confidentiality of court case management systems, which handle highly sensitive data including personal information, legal documents, and judicial proceedings. Organizations using Tyler Technologies Court Case Management Plus face significant risk of data breaches, regulatory violations, and potential legal consequences. The vulnerability's exploitation could lead to unauthorized modifications of court records, creation of false entries, and complete compromise of the system's access controls. This represents a serious threat to judicial integrity and could undermine public trust in the legal system's digital infrastructure.
Mitigation strategies for CVE-2023-6342 should prioritize immediate patching of the affected software version, as Tyler Technologies has acknowledged the vulnerability and likely provided remediation. Organizations should implement network segmentation to limit access to the vulnerable components, particularly the pay for print feature that was removed in November 2023. Additional defensive measures include implementing proper input validation for all user-supplied parameters, enforcing strict access controls, and monitoring for unusual authentication patterns. Security controls should include web application firewalls configured to detect and block parameter manipulation attempts, as well as regular security audits of authentication mechanisms. The vulnerability's exploitation highlights the importance of proper security testing and input validation, particularly for features that handle user identification and authentication. Organizations should also consider implementing multi-factor authentication and regular security assessments to prevent similar vulnerabilities in other system components. The incident underscores the need for continuous security monitoring and rapid response capabilities when critical vulnerabilities are discovered in production systems.