CVE-2005-4090 in HP-UX
Summary
by MITRE
Unspecified vulnerability in HP-UX B.11.00 to B.11.23, when IPSEC is running, allows remote attackers to have unknown impact.
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Analysis
by VulDB Data Team • 09/01/2019
The vulnerability identified as CVE-2005-4090 represents a significant security weakness in Hewlett-Packard's HP-UX operating system versions ranging from B.11.00 through B.11.23 when the IPSEC protocol is actively configured and running. This unspecified nature of the vulnerability indicates that the exact technical flaw remains undocumented in publicly available sources, making it particularly concerning for security professionals who must assess and mitigate potential risks without complete information about the underlying mechanism. The vulnerability exists specifically within the context of IPSEC operations, suggesting that the issue is tied to how the system handles secure network communications and cryptographic operations. The remote attack vector implies that adversaries can exploit this weakness from external network positions without requiring local system access or physical presence.
The technical implications of this vulnerability become particularly severe when considering the role of IPSEC in network security infrastructure. IPSEC provides encryption and authentication services for IP communications, making it a critical component for secure network operations and enterprise connectivity. When IPSEC is running on affected HP-UX systems, the vulnerability could potentially allow attackers to manipulate encrypted communications, disrupt network security policies, or gain unauthorized access to sensitive data flows. The unspecified nature of the vulnerability makes it particularly dangerous because security teams cannot determine whether the issue relates to cryptographic weaknesses, protocol implementation flaws, or network stack vulnerabilities. This uncertainty complicates the development of targeted defensive measures and requires broader security assessments to identify potential exploitation paths.
From an operational standpoint, organizations running affected HP-UX versions with active IPSEC implementations face substantial risk exposure. The vulnerability could enable attackers to perform man-in-the-middle attacks, decrypt sensitive communications, or disrupt critical network services that depend on IPSEC protection. The impact extends beyond immediate security breaches to potential compliance violations, as many regulatory frameworks require robust network security measures for protecting sensitive data. The remote exploit capability means that threat actors can target these systems from anywhere on the internet, making the vulnerability particularly attractive for automated attacks. Organizations with distributed networks or those relying on IPSEC for secure remote access may experience significant operational disruptions if this vulnerability is successfully exploited.
The mitigation landscape for CVE-2005-4090 presents significant challenges due to the unspecified nature of the vulnerability. Traditional remediation approaches such as applying security patches or configuration changes become difficult when the exact technical flaw is unknown. Security teams must implement broader defensive measures including network monitoring, access controls, and potentially temporary disabling of IPSEC services until more specific information about the vulnerability becomes available. This situation aligns with common practices in vulnerability management where unspecified vulnerabilities require more conservative approaches to security hardening. Organizations should consider implementing network segmentation strategies to limit potential attack surfaces and establish incident response procedures specifically designed to address unknown vulnerabilities.
This vulnerability demonstrates the importance of comprehensive security assessments and the dangers of relying on incomplete vulnerability information. The lack of specific technical details about the flaw makes it challenging to determine appropriate countermeasures or assess risk levels accurately. From an ATT&CK framework perspective, this vulnerability could map to multiple techniques including privilege escalation, defense evasion, and credential access, depending on the specific exploitation method. The vulnerability also relates to CWE categories involving network protocol security and cryptographic implementation flaws, highlighting the need for robust security testing of network infrastructure components. Organizations should prioritize upgrading to supported HP-UX versions, implementing additional monitoring for suspicious network activity, and maintaining comprehensive security documentation to track and respond to similar unspecified vulnerabilities in the future.