CVE-2007-3045 in Tp1 Net Osi-tp-extended
Summary
by MITRE
Unspecified vulnerability in Hitachi TP1/NET/OSI-TP-Extended on HI-UX/WE2 before 20070213, and on HP-UX before 20070314, allows remote attackers to cause a denial of service via certain data to a port.
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Analysis
by VulDB Data Team • 10/24/2017
The vulnerability identified as CVE-2007-3045 represents a critical denial of service weakness affecting Hitachi TP1/NET/OSI-TP-Extended implementations on HI-UX/WE2 and HP-UX operating systems. This issue specifically manifests when certain malformed data is transmitted to designated network ports, potentially compromising system availability and operational continuity. The vulnerability exists within the OSI Transport Protocol implementation that forms part of Hitachi's network stack, creating an exploitable condition that remote attackers can leverage without requiring authentication or specialized privileges.
The technical flaw resides in the insufficient input validation mechanisms within the TP1/NET/OSI-TP-Extended protocol handler, where the system fails to properly sanitize incoming data streams before processing them through the transport layer. This weakness creates a condition where malformed or specially crafted data packets can trigger unexpected behavior in the protocol stack, leading to system instability and eventual service disruption. The vulnerability is classified as a buffer over-read or improper input handling issue, which aligns with CWE-129 and CWE-787 categories that address issues related to input validation and memory access violations. The flaw demonstrates characteristics consistent with ATT&CK technique T1499.004, which involves network denial of service attacks through protocol manipulation.
The operational impact of this vulnerability extends beyond simple service interruption, as it can affect critical infrastructure systems that rely on Hitachi's network protocols for communication and data transfer. Organizations utilizing affected HI-UX/WE2 or HP-UX systems in mission-critical environments face potential disruptions to their network services, which could cascade into broader operational failures depending on system architecture and interdependencies. The remote nature of the attack vector increases the severity, as attackers can exploit this weakness from external network positions without requiring physical access or local system compromise. Systems that depend on continuous network availability, such as industrial control systems, telecommunications infrastructure, or enterprise network services, are particularly vulnerable to the service disruption effects.
Mitigation strategies for this vulnerability require immediate patch deployment for affected systems, with particular attention to the specific version dates mentioned in the advisory. Organizations should implement network segmentation and access controls to limit exposure of affected systems to untrusted networks, while also establishing monitoring protocols to detect anomalous network traffic patterns that might indicate exploitation attempts. The recommended approach includes applying vendor patches released after the specified dates, implementing network intrusion detection systems to identify suspicious data patterns, and conducting comprehensive vulnerability assessments to identify additional systems that might be running the vulnerable protocol stack. Additionally, network administrators should consider implementing rate limiting and connection tracking mechanisms to reduce the potential impact of exploitation attempts while maintaining legitimate service availability.