JCMS Arbitrary File Read Scanner

Dahan JCMS is a comprehensive content management system designed based on the J2EE architecture. It provides essential functionalities for managing the complete lifecycle of information, including content collection, creation, management, delivery, publishing, sharing, and presentation, making it suitable for organizations managing large volumes of content. JCMS is widely implemented in enterprises and governmental bodies that require a robust platform for content management and information dissemination. Offering a variety of features, Dahan JCMS supports integration and scalability, accommodating growing content needs efficiently. The software is user-friendly and is designed to support multi-user collaboration, making it essential for teams managing shared content environments. Additionally, JCMS provides a flexible environment for developers to customize and enhance functional capabilities according to specific business requirements.

The Arbitrary File Read vulnerability in JCMS allows unauthorized read access to server files, posing a significant threat to data confidentiality. This vulnerability stems from insufficient input validation, allowing attackers to manipulate file access requests. Exploiting this vulnerability can lead to unauthorized exposure of sensitive files and information. Often targeted in web environments, this vulnerability can compromise server security if left unaddressed. The presence of this vulnerability highlights the need for robust input filtering mechanisms to prevent unauthorized file access. Organizations using JCMS must be aware of this vulnerability to implement timely patches and safeguard sensitive data.

Technically, the vulnerability in JCMS remote file reading can be triggered via the 'readxml.jsp' file, accessible through crafted POST requests. Intrinsically, the flaw lies in the lack of stringent validation mechanisms on the input parameters such as 'flowcode', which can be manipulated to point to sensitive server paths like '../../../WEB-INF/config/dbconfig'. Successful exploitation yields unrestricted access to configuration files, which may contain critical database credentials. The endpoint inadequately sanitizes input, allowing directory traversal patterns that circumvent security controls. Attackers can particularly target this path to read files that are otherwise protected by the application framework. Addressing this requires implementing rigorous validation checks on input parameters to mitigate directory traversal risks.

If leveraged by malicious actors, this vulnerability could lead to severe impacts, including unauthorized access to sensitive information, such as configuration and credential files stored on the server. The exposure of database configuration files, specifically, could facilitate further attacks on the infrastructure, such as database compromise and information theft. An exploited JCMS environment could lead to a full compromise of the system, permitting attackers to manipulate or destroy data and disrupt service operations. Such unauthorized access could result in significant data breaches, affecting organizational reputation and integrity. Failure to address this vulnerability could result in severe regulatory and legal penalties stemming from data protection laws breaches.