CVE-2015-8670 in LogCenter
Summary
by MITRE
Huawei LogCenter V100R001C10 could allow an authenticated attacker to add abnormal device information to the log collection module, causing denial of service.
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Analysis
by VulDB Data Team • 08/24/2020
The vulnerability identified as CVE-2015-8670 affects Huawei LogCenter V100R001C10, a centralized logging and monitoring solution used in enterprise environments for collecting, analyzing, and managing log data from various network devices and systems. This security flaw represents a significant concern for organizations relying on Huawei's logging infrastructure, as it creates a pathway for authenticated attackers to disrupt critical log collection processes. The vulnerability specifically resides within the log collection module of the system, which serves as the core component responsible for gathering and processing log information from connected devices. The affected version of Huawei LogCenter operates under the assumption that authenticated users can be trusted, creating an implicit security model that fails to adequately validate input data from legitimate users who may attempt to exploit this weakness.
The technical implementation of this vulnerability stems from insufficient validation and sanitization of device information within the log collection module. An authenticated attacker with legitimate credentials can manipulate the system by injecting abnormal device information that the logging infrastructure does not properly handle. This flaw essentially allows for a form of input manipulation where malicious data is introduced into the system's processing pipeline, causing the log collection module to behave unpredictably. The vulnerability operates at the intersection of improper input validation and inadequate error handling, where the system fails to properly validate the legitimacy of device information before processing it. This type of weakness aligns with CWE-20, which describes improper input validation, and CWE-707, which covers improper use of pointers and references in data processing. The attack vector requires authentication, making it a privilege escalation vulnerability that can be exploited by insiders or compromised legitimate users.
The operational impact of this vulnerability extends beyond simple service disruption, potentially leading to complete system unavailability and loss of critical log data. When an attacker successfully injects abnormal device information, the log collection module may experience crashes, memory corruption, or resource exhaustion, resulting in denial of service conditions that prevent legitimate log data collection. This disruption can severely impact security operations by eliminating crucial audit trails and monitoring capabilities that organizations depend upon for threat detection and incident response. The vulnerability particularly affects organizations that rely heavily on centralized logging for compliance requirements, forensic analysis, and security monitoring, as the denial of service condition can mask actual security incidents or prevent detection of ongoing attacks. From an ATT&CK framework perspective, this vulnerability maps to T1499, which covers network disruption, and T1566, which involves social engineering tactics that could lead to credential compromise and subsequent exploitation of this weakness.
Organizations should implement multiple layers of defense to mitigate this vulnerability effectively. Immediate remediation efforts should focus on applying the latest security patches provided by Huawei, which typically address the input validation issues within the log collection module. Network segmentation and access controls should be strengthened to limit the number of users with authentication credentials that could potentially exploit this vulnerability. The implementation of monitoring solutions that can detect anomalous device information patterns and automated alerting systems can help identify exploitation attempts before they cause significant disruption. Additionally, organizations should conduct regular security assessments of their logging infrastructure and implement principle of least privilege access controls to minimize the potential impact of credential compromise. Security teams should also develop incident response procedures specifically addressing denial of service conditions in logging systems, ensuring that alternative monitoring and logging capabilities remain available during remediation efforts. The vulnerability highlights the importance of validating all input data regardless of authentication status and demonstrates the critical need for robust error handling in security-critical systems.