CVE-2002-1784 in Tru64
Summary
by MITRE
Unknown vulnerability in inetd in HP Tru64 Unix 4.0f through 5.1a allows remote attackers to cause a denial of service via unknown attack vectors.
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Analysis
by VulDB Data Team • 07/03/2024
The vulnerability identified as CVE-2002-1784 represents a critical denial of service flaw within the inetd service implementation of HP Tru64 Unix operating systems. This issue affects versions ranging from 4.0f through 5.1a, indicating a prolonged period of exposure across multiple iterations of the enterprise Unix platform. The inetd service, which serves as the Internet superserver responsible for managing and launching network services, constitutes a fundamental component of system security infrastructure. When compromised, this vulnerability creates a pathway for remote attackers to disrupt normal system operations without necessarily gaining unauthorized access to system resources or data.
The technical nature of this vulnerability stems from inadequate input validation or improper handling of network requests within the inetd service implementation. While the specific attack vectors remain unspecified in the CVE description, such vulnerabilities typically arise from buffer overflows, improper resource management, or failure to properly sanitize incoming network data. The absence of detailed attack methodology in the description suggests either limited public knowledge of the specific flaw or that the vulnerability was classified as a latent issue requiring further analysis. This type of vulnerability aligns with common patterns found in network service implementations where insufficient validation of connection parameters or service requests can lead to service disruption.
The operational impact of CVE-2002-1784 extends beyond simple service interruption, potentially compromising the availability of critical system services that depend on inetd for their operation. In enterprise environments running HP Tru64 Unix, this vulnerability could affect multiple network services simultaneously, as inetd typically manages numerous daemons including telnet, ftp, and other TCP/IP services. The remote nature of the attack means that adversaries can exploit this weakness from external networks without requiring local system access or credentials. This characteristic places the vulnerability in the category of network-based threats that can be leveraged by attackers to disrupt business operations and potentially mask other malicious activities.
Security practitioners should recognize this vulnerability as potentially mapping to CWE-122, which addresses buffer overflow conditions in network services, and may also align with ATT&CK techniques related to denial of service operations. The lack of specific attack vectors in the CVE description does not diminish its severity, as even undocumented vulnerabilities can be exploited by determined attackers who may discover and weaponize the flaw. Organizations running affected HP Tru64 Unix systems should prioritize applying vendor patches or implementing workarounds to prevent exploitation, while also considering network segmentation and monitoring to detect potential exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date system patches and the risks associated with legacy operating system versions that may not receive continued security support from vendors.