CVE-2011-0435 in Domain Technologie Control
Summary
by MITRE
Domain Technologie Control (DTC) before 0.32.9 does not require authentication for (1) admin/bw_per_month.php and (2) client/bw_per_month.php, which allows remote attackers to obtain potentially sensitive bandwidth information via a direct request.
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Analysis
by VulDB Data Team • 10/19/2021
The vulnerability identified as CVE-2011-0435 affects Domain Technologie Control (DTC) software versions prior to 0.32.9, representing a critical authentication bypass flaw that exposes sensitive network monitoring data. This issue stems from the software's failure to properly enforce access controls on two specific PHP endpoints within the administrative and client interfaces. The affected files admin/bw_per_month.php and client/bw_per_month.php lack proper authentication mechanisms, allowing any remote attacker to directly access bandwidth consumption statistics without requiring valid credentials or authorization. This vulnerability directly violates fundamental security principles of access control and information assurance, creating a significant risk for organizations relying on DTC for network infrastructure management.
The technical implementation of this flaw demonstrates a classic lack of input validation and access control enforcement within the application's security architecture. When attackers make direct HTTP requests to these unauthenticated endpoints, the system processes the requests without verifying the requester's identity or privileges, thereby exposing bandwidth usage data that typically would be restricted to authorized administrative personnel. This information includes detailed monthly bandwidth consumption metrics that could reveal network usage patterns, peak traffic periods, and overall infrastructure utilization. From a cybersecurity perspective, this vulnerability aligns with CWE-285, which addresses improper authorization issues, and represents a clear violation of the principle of least privilege. The flaw operates at the application layer and can be exploited through simple network reconnaissance and direct HTTP requests without requiring complex exploitation techniques or specialized tools.
The operational impact of this vulnerability extends beyond simple information disclosure, as bandwidth usage data can serve as valuable intelligence for potential attackers planning network-based attacks. The exposed information could reveal network topology characteristics, identify high-traffic periods, and provide insights into organizational network behavior patterns that could be leveraged for more sophisticated attacks. Organizations using affected DTC versions may face compliance violations with security standards such as iso 27001 and nist cybersecurity framework, as the disclosure of sensitive network metrics constitutes a breach of data protection requirements. This vulnerability particularly affects network administrators and service providers who rely on DTC for monitoring and managing network resources, as the exposure of bandwidth data could compromise network security posture and potentially enable attackers to identify targets for further exploitation.
Mitigation strategies for this vulnerability should prioritize immediate software updates to DTC version 0.32.9 or later, which contains the necessary authentication enforcement mechanisms. Organizations should also implement network segmentation and access control measures to limit exposure of administrative interfaces, while establishing monitoring procedures to detect unauthorized access attempts to sensitive endpoints. Security professionals should conduct comprehensive vulnerability assessments to identify any additional unauthenticated endpoints within the application, as this flaw may indicate broader authentication weaknesses. The remediation process should include reviewing and strengthening authentication mechanisms, implementing proper input validation for all application endpoints, and ensuring that sensitive data is protected through appropriate access controls. From an ATT&CK framework perspective, this vulnerability corresponds to techniques related to credential access and information gathering, making it a critical target for immediate remediation to prevent potential exploitation for advanced persistent threats.