CVE-2011-2081 in MediaCAST
Summary
by MITRE
MediaCAST 8 and earlier does not properly handle requests for inventivex/isptools/release/metadata/globalIncludeFolders.txt, which allows remote attackers to obtain sensitive information via unspecified vectors related to the Public/ directory tree.
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Analysis
by VulDB Data Team • 02/09/2019
The vulnerability identified as CVE-2011-2081 affects MediaCAST versions 8 and earlier, specifically targeting the application's improper handling of requests for the inventivex/isptools/release/metadata/globalIncludeFolders.txt resource. This flaw represents a critical information disclosure vulnerability that stems from inadequate input validation and access control mechanisms within the MediaCAST application framework. The vulnerability exists within the Public directory tree structure, suggesting that the application fails to properly restrict access to sensitive metadata files that should remain protected from unauthorized retrieval.
The technical implementation of this vulnerability involves the application's failure to enforce proper authorization checks when processing requests for specific metadata files. When remote attackers submit requests for the globalIncludeFolders.txt file, the system does not adequately verify whether the requester has legitimate access rights to retrieve this information. This misconfiguration allows attackers to bypass normal access controls and obtain sensitive metadata that may contain directory structures, file paths, or other organizational information that could aid in further exploitation attempts. The unspecified vectors mentioned in the description indicate that the vulnerability could be triggered through various attack methods including direct URL manipulation, automated scanning tools, or social engineering techniques that leverage the application's weak access control implementation.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed metadata could provide attackers with detailed insights into the application's internal directory structure and file organization. This intelligence could enable more sophisticated attacks such as directory traversal attempts, privilege escalation, or targeted exploitation of other vulnerabilities within the MediaCAST application. The vulnerability aligns with CWE-200, which describes improper exposure of sensitive information, and represents a classic example of insufficient access control that violates fundamental security principles. Attackers could leverage this information to map the application's file system, identify potential weak points in the architecture, and plan subsequent phases of an attack.
From a threat modeling perspective, this vulnerability demonstrates how seemingly minor access control flaws can result in significant security implications. The attack surface is expanded due to the application's failure to properly enforce access restrictions on metadata files, creating opportunities for reconnaissance and information gathering activities. The vulnerability may also facilitate other attack vectors such as path traversal or file inclusion attacks, as the exposed directory structure could reveal patterns that attackers can exploit to access additional sensitive resources. Organizations using MediaCAST 8 or earlier versions face substantial risk from this vulnerability, particularly in environments where sensitive data processing occurs and where attackers have network access to the application servers.
Mitigation strategies for this vulnerability require immediate implementation of proper access controls and input validation mechanisms. Organizations should apply the vendor-provided patches or upgrade to MediaCAST versions that address this specific access control flaw. Network segmentation and firewall rules should be implemented to restrict access to sensitive application endpoints, while web application firewalls can help detect and block malicious requests targeting vulnerable paths. Regular security assessments and penetration testing should be conducted to identify similar access control vulnerabilities throughout the application stack. The remediation efforts should also include comprehensive logging of access attempts to sensitive resources, enabling security teams to detect potential exploitation attempts and establish baseline behaviors for normal application usage patterns. Additionally, implementing principle of least privilege access controls and regular security audits will help prevent similar vulnerabilities from emerging in other components of the system architecture.