CVE-2002-2187 in JRun
Summary
by MITRE
Unknown "file disclosure" vulnerability in Macromedia JRun 3.0, 3.1, and 4.0, related to a log file or jrun.ini, with unknown impact.
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Analysis
by VulDB Data Team • 07/11/2024
The vulnerability identified as CVE-2002-2187 represents a critical file disclosure weakness affecting Macromedia JRun application servers version 3.0, 3.1, and 4.0. This issue stems from inadequate access controls within the server configuration, specifically related to log files and the jrun.ini configuration file. The flaw allows unauthorized users to retrieve sensitive information from these files, potentially exposing system internals and configuration details. Such vulnerabilities typically arise from improper file permissions or insufficient input validation in web server components, creating pathways for information leakage that can significantly compromise system security posture. The affected versions of JRun represent a legacy platform where security considerations were not as comprehensive as modern standards require.
The technical implementation of this vulnerability exploits the server's handling of configuration and logging files without proper access restriction mechanisms. When the JRun server processes requests for specific file paths or when it fails to validate user input properly, it may inadvertently expose the contents of log files or the jrun.ini configuration file to remote attackers. These files often contain sensitive data including database connection strings, server paths, user credentials, and other system configuration parameters that could be leveraged for further attacks. The vulnerability operates at the application level and can be classified under CWE-200, which specifically addresses improper exposure of sensitive information. This weakness enables attackers to gather intelligence about the target system architecture and configuration, potentially facilitating more sophisticated exploitation techniques.
The operational impact of CVE-2002-2187 extends beyond simple information disclosure, as the leaked data can serve as a foundation for subsequent attacks within the network infrastructure. Attackers can use the exposed configuration details to identify potential attack vectors, understand system deployment patterns, and locate other vulnerable components within the application stack. This type of vulnerability aligns with ATT&CK technique T1083, which involves discovering system information through file and directory enumeration. The exposure of jrun.ini files can reveal database connection parameters, which may lead to direct database access if proper authentication mechanisms are not in place. Additionally, log file contents often contain timestamps, user activities, and error messages that can provide attackers with valuable insights into system behavior and potential security gaps.
Mitigation strategies for this vulnerability require immediate attention through multiple defensive layers. System administrators should implement strict file permission controls on all configuration and log files, ensuring that only authorized processes and users can access sensitive data. The JRun server should be updated to versions that address this specific weakness, as the vendor likely released patches to correct the improper file access handling. Network segmentation and firewall rules should be configured to restrict access to server configuration endpoints, preventing unauthorized remote access to sensitive files. Additionally, regular security audits should be conducted to identify and remediate similar weaknesses in other server components. The implementation of proper input validation and access control mechanisms within the application code can prevent this class of vulnerability from reoccurring in future deployments. Organizations should also establish comprehensive monitoring procedures to detect unauthorized access attempts to sensitive system files, as early detection can prevent exploitation of such vulnerabilities.