CVE-2005-4806 in Java System Web Proxy Server
Summary
by MITRE
Multiple unspecified vulnerabilities in Sun Java System Web Proxy Server 3.6 SP7 and earlier allow remote attackers to cause a denial of service (unresponsive service) via unknown vectors.
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Analysis
by VulDB Data Team • 06/09/2019
The Sun Java System Web Proxy Server 3.6 SP7 and earlier versions contain multiple unspecified vulnerabilities that present significant security risks to organizations relying on this proxy infrastructure. These vulnerabilities specifically enable remote attackers to execute denial of service attacks that result in unresponsive service conditions, effectively disrupting critical web proxy operations and potentially impacting downstream applications and users who depend on the proxy server for network connectivity and content filtering.
The technical nature of these unspecified vulnerabilities suggests weaknesses within the proxy server's processing mechanisms that can be exploited from remote locations without requiring authentication or privileged access. The unspecified character of these flaws indicates that the exact technical details of how the vulnerabilities manifest remain undisclosed, which complicates the development of precise defensive measures. However, the classification of these issues as denial of service vulnerabilities implies that they likely involve memory corruption, resource exhaustion, or protocol handling flaws that cause the server to become unresponsive or crash entirely. These vulnerabilities represent a critical concern for enterprise environments where proxy servers serve as fundamental components of network infrastructure and security controls.
The operational impact of these vulnerabilities extends beyond simple service interruption, as they can severely compromise the availability of web services and network access for organizations using the affected proxy server versions. When a proxy server becomes unresponsive due to these vulnerabilities, it creates cascading effects throughout the network infrastructure, potentially blocking legitimate user requests and disrupting business operations. The remote exploitability of these vulnerabilities means that attackers can initiate attacks from anywhere on the internet, making the threat landscape particularly concerning for organizations with exposed proxy server configurations. This vulnerability class aligns with attack patterns identified in the mitre attack framework under the denial of service category, specifically targeting network infrastructure components that serve as critical access points for enterprise networks.
Organizations should prioritize immediate remediation through the application of security patches and updates provided by Sun Microsystems to address these vulnerabilities. The implementation of network segmentation and access controls can help reduce the attack surface by limiting exposure of the proxy server to untrusted networks. Additionally, monitoring systems should be deployed to detect unusual traffic patterns or service disruptions that may indicate exploitation attempts. Given the unspecified nature of these vulnerabilities, organizations should also consider implementing robust incident response procedures that can quickly identify and contain potential exploitation attempts. The vulnerabilities present in these proxy server versions demonstrate the importance of maintaining current security patches and conducting regular vulnerability assessments to identify and remediate potential security weaknesses before they can be exploited by malicious actors. This situation underscores the critical need for organizations to maintain comprehensive software update policies and security monitoring capabilities to protect against both known and unknown vulnerabilities in critical infrastructure components.