CVE-2007-4179 in Address And Routing Parameter Area(arpa) Transport
Summary
by MITRE
Unspecified vulnerability in the Address and Routing Parameter Area (ARPA) transport functionality in HP-UX B.11.11 and B.11.23 allows local users to cause an unspecified denial of service via unknown vectors. NOTE: this is probably different from CVE-2007-0916, but this is not certain due to lack of vendor details.
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Analysis
by VulDB Data Team • 07/21/2021
The vulnerability identified as CVE-2007-4179 represents a significant security flaw within the Address and Routing Parameter Area transport functionality of HP-UX operating systems versions B.11.11 and B.11.23. This issue resides within the core networking infrastructure of these unix-based systems, specifically affecting the ARPA transport layer that handles network communication protocols. The unspecified nature of the vulnerability's exact mechanism makes it particularly concerning for system administrators and security professionals who must assess potential risks without complete technical details from the vendor. The classification as a local privilege escalation vulnerability indicates that malicious actors with access to the system can exploit this weakness to disrupt normal operations, though the precise attack vectors remain unclear due to limited information provided by HP.
The technical implications of this vulnerability extend beyond simple denial of service, as it affects the fundamental transport mechanisms that enable network communication within the HP-UX environment. The ARPA transport functionality serves as a critical component in the network stack, handling routing decisions and address resolution for network packets. When compromised, this layer can potentially allow attackers to manipulate network traffic flow, disrupt communication channels, or create conditions that lead to system instability. The fact that this vulnerability is classified as local suggests that exploitation requires either direct system access or the ability to execute code within the target environment, but does not necessarily require network-based attack capabilities. This characteristic places additional emphasis on the importance of access controls and privilege management within HP-UX systems.
The operational impact of CVE-2007-4179 could be substantial for organizations relying on HP-UX B.11.11 and B.11.23 systems, particularly in mission-critical environments where network availability is paramount. A successful exploitation could result in complete network service disruption, forcing organizations to implement emergency maintenance procedures and potentially leading to extended downtime. The vulnerability's presence in widely deployed versions of HP-UX means that numerous enterprise systems could be at risk, especially those in financial services, telecommunications, or other sectors where system reliability is crucial. The lack of specific information about the vulnerability's behavior makes risk assessment particularly challenging, as security teams cannot accurately determine the scope of potential attack scenarios or develop targeted defensive measures.
Mitigation strategies for this vulnerability should focus on implementing comprehensive access controls and privilege management procedures to limit local user access to critical system components. System administrators should consider applying available patches or updates from HP, although the limited information about the specific vulnerability makes it difficult to assess the effectiveness of such measures. Network segmentation and monitoring solutions can help detect anomalous behavior that might indicate exploitation attempts, while regular security audits should examine the configuration and access permissions of ARPA transport functionality. The vulnerability's classification as local access means that traditional network-based defenses may not be sufficient, requiring more granular endpoint security measures and user privilege controls. Organizations should also consider implementing intrusion detection systems that can monitor for unusual network activity patterns that might indicate attempts to exploit transport layer vulnerabilities. This case highlights the importance of maintaining detailed vulnerability databases and ensuring timely patch management across all system components, particularly those that handle core networking functions. The uncertainty surrounding this vulnerability's relationship to CVE-2007-0916 underscores the need for comprehensive vulnerability analysis and the importance of vendor communication in understanding the true scope of security issues within operating system components.