CVE-2015-8671 in LogCenter
Summary
by MITRE
Huawei LogCenter V100R001C10 could allow an authenticated attacker to tamper with requests using a tool and submit a request to the server for privilege escalation, affecting some system functions.
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Analysis
by VulDB Data Team • 08/24/2020
The vulnerability identified as CVE-2015-8671 affects Huawei LogCenter V100R001C10, a security information and event management solution that processes and analyzes log data from various network devices. This authentication bypass flaw resides within the web interface of the system, where proper input validation and request integrity checks are insufficiently implemented. The vulnerability specifically impacts the privilege escalation mechanism, allowing an authenticated user to manipulate HTTP requests through automated tools, thereby gaining elevated access rights beyond their normal permissions.
The technical exploitation of this vulnerability stems from inadequate validation of request parameters and missing cryptographic integrity checks within the application's authentication flow. An attacker who has already established valid credentials can leverage this weakness to submit crafted requests that bypass normal authorization controls. The flaw essentially allows for parameter manipulation that can alter the user's privilege level or access scope within the system, potentially enabling unauthorized access to sensitive system functions and data. This type of vulnerability falls under the category of insufficient input validation and weak session management, which are commonly categorized under CWE-284 for improper access control and CWE-345 for insufficient verification of data integrity.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can potentially compromise the entire security posture of the LogCenter system. Once an attacker successfully exploits this weakness, they could access administrative functions, modify system configurations, view restricted log data, or even manipulate the logging process itself. This creates a significant risk for organizations relying on the system for security monitoring, as the attacker could potentially hide malicious activities or disrupt the logging infrastructure. The vulnerability directly affects the system's integrity and confidentiality properties, undermining the fundamental security guarantees that security information and event management systems are designed to provide. Organizations using this version of Huawei LogCenter may face unauthorized access to critical system functions, potentially leading to data breaches or complete system compromise.
Mitigation strategies for CVE-2015-8671 should prioritize immediate patch application from Huawei, as this addresses the root cause of the vulnerability through proper input validation and request integrity checks. Network segmentation and access control measures can provide additional defense in depth, limiting the potential impact if exploitation occurs. Implementing web application firewalls and monitoring for suspicious request patterns can help detect exploitation attempts. Regular security assessments and penetration testing should verify that proper access controls are enforced throughout the application. The vulnerability aligns with ATT&CK technique T1078 for valid accounts and T1484 for privilege escalation, highlighting the need for comprehensive monitoring of user behavior and access patterns. Organizations should also consider implementing multi-factor authentication and regular credential rotation to reduce the risk of unauthorized access through compromised accounts.