CVE-2016-8516 in Systems Insight Manager
Summary
by MITRE
A remote denial of service vulnerability in HPE Systems Insight Manager in all versions prior to 7.6 was found.
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Analysis
by VulDB Data Team • 02/03/2021
The vulnerability identified as CVE-2016-8516 represents a critical remote denial of service flaw within HPE Systems Insight Manager software across all versions prior to 7.6. This vulnerability resides in the application's handling of malformed input data within its web interface components, specifically affecting the management and monitoring capabilities of HPE server infrastructure. The flaw manifests when the system processes specially crafted requests that trigger unexpected behavior in the application's processing logic, ultimately leading to service disruption and system unavailability.
Technical exploitation of this vulnerability occurs through network-based attacks that target the web server components of HPE Systems Insight Manager. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. When malicious input is received through HTTP requests, the application's parsing routines encounter unexpected data structures that cause the system to crash or become unresponsive. This behavior aligns with CWE-129, which describes improper validation of input boundaries, and CWE-400, which addresses resource exhaustion vulnerabilities. The vulnerability operates at the application layer and requires network connectivity to the affected system's web interface, making it particularly dangerous in enterprise environments where system availability is critical for infrastructure management.
The operational impact of CVE-2016-8516 extends beyond simple service disruption, as it affects the core functionality of HPE Systems Insight Manager which serves as a central management platform for monitoring and maintaining HPE server environments. Organizations relying on this system for critical infrastructure management face potential downtime that could span hours or days, depending on recovery procedures and system configurations. The vulnerability particularly affects environments where multiple systems are managed through a single HPE Systems Insight Manager instance, creating cascading failures that could impact entire data center operations. From an attacker's perspective, this vulnerability provides a straightforward path to system unavailability without requiring authentication or elevated privileges, making it an attractive target for disruptive attacks. The flaw also creates opportunities for attackers to exploit the system's recovery mechanisms, potentially leading to more complex attack vectors that could evolve from simple denial of service to more sophisticated compromise attempts.
Mitigation strategies for CVE-2016-8516 primarily focus on immediate software updates and system hardening measures. Organizations should prioritize upgrading to HPE Systems Insight Manager version 7.6 or later, which includes patched input validation routines and improved error handling mechanisms. Network segmentation and access control measures should be implemented to limit exposure of the affected system to untrusted networks, following the principle of least privilege as outlined in the NIST Cybersecurity Framework. Additionally, implementing intrusion detection systems and monitoring for unusual network traffic patterns can help identify exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches, as the flaw existed for several years without proper mitigation, indicating potential gaps in security monitoring and patch management processes. Organizations should also consider implementing application firewalls and web application security controls to provide additional layers of protection against similar input validation attacks, aligning with ATT&CK technique T1499 which addresses network denial of service attacks. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other enterprise applications, ensuring comprehensive protection against analogous threats that may leverage similar exploitation techniques.