CVE-2008-4416 in HP-UX
Summary
by MITRE
Unspecified vulnerability in the kernel in HP HP-UX B.11.31 allows local users to cause a denial of service via unknown vectors.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 08/22/2019
The vulnerability identified as CVE-2008-4416 represents a critical security flaw within the kernel implementation of HP HP-UX B.11.31 operating system. This unspecified weakness exists at the core level of the system's kernel, which serves as the fundamental bridge between hardware and software components. The vulnerability specifically affects the HP-UX B.11.31 release, a Unix-based operating system developed by Hewlett-Packard that was widely deployed in enterprise environments for mission-critical applications. The kernel serves as the central component managing system resources, process execution, and hardware interactions, making any vulnerability within this layer potentially devastating to system stability and availability.
The technical nature of this vulnerability manifests as a local privilege escalation vector that enables attackers with limited system access to trigger a denial of service condition. While the exact technical mechanisms remain unspecified in the CVE description, such vulnerabilities typically arise from improper input validation, memory management errors, or race conditions within kernel code. The unspecified nature suggests that the vulnerability could stem from multiple potential kernel implementation flaws including buffer overflows, improper privilege checks, or corrupted data structures that when exploited can cause the kernel to crash or become unresponsive. These types of vulnerabilities often result from inadequate boundary checking in kernel memory operations or failure to properly validate user-supplied data before processing.
The operational impact of this vulnerability extends beyond simple system instability to encompass significant business continuity risks for organizations relying on HP-UX B.11.31 systems. Local users who exploit this vulnerability can potentially cause complete system crashes, forcing administrators to perform manual restarts and potentially resulting in data loss or service interruption. In enterprise environments where HP-UX systems often host critical applications and databases, such a denial of service condition can result in substantial financial losses and operational disruption. The local nature of the vulnerability means that attackers do not require network access or remote exploitation capabilities, making it particularly dangerous as any user with legitimate system access could potentially trigger the flaw.
From a cybersecurity perspective, this vulnerability aligns with common weakness patterns documented in the CWE database, particularly those related to kernel-level memory corruption and privilege escalation flaws. The ATT&CK framework would categorize this under privilege escalation techniques where adversaries leverage kernel vulnerabilities to gain elevated system access or cause system instability. Organizations should implement comprehensive monitoring solutions to detect anomalous system behavior that might indicate exploitation attempts, while also maintaining robust patch management processes to ensure timely deployment of vendor security updates. The vulnerability demonstrates the critical importance of kernel security in operating system design and highlights the need for thorough code review processes and security testing of core system components.
Security professionals should consider this vulnerability as part of broader system hardening efforts, implementing additional controls such as mandatory access controls, privilege separation, and regular system integrity checks. The unspecified nature of the vulnerability also emphasizes the importance of maintaining detailed system logs and implementing behavioral analytics to detect potential exploitation attempts. Organizations running HP-UX B.11.31 systems should prioritize immediate patching or implementation of compensating controls while also planning for eventual migration to supported operating system versions that have addressed these kernel-level security concerns. The vulnerability serves as a reminder that even legacy systems require ongoing security attention and that kernel-level flaws can have cascading effects on overall system security posture.