CVE-2007-6570 in Java System Web Proxy Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the View URL Database functionality in Sun Java System Web Proxy Server 4.x before 4.0.6 and 3.x before 3.6 SP11 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka BugID 6566309.
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Analysis
by VulDB Data Team • 08/03/2019
The CVE-2007-6570 vulnerability represents a critical cross-site scripting flaw within Sun Java System Web Proxy Server's View URL Database functionality. This vulnerability affects versions 4.x prior to 4.0.6 and 3.x prior to 3.6 SP11, creating a significant security risk for organizations relying on this proxy server implementation. The flaw stems from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before it is rendered in web interfaces. This vulnerability is classified under CWE-79 as a failure to sanitize input, specifically manifesting as a cross-site scripting vulnerability that allows malicious actors to inject arbitrary web scripts or HTML content into the affected system.
The technical exploitation of this vulnerability occurs through unspecified attack vectors within the proxy server's URL database viewing functionality. Attackers can leverage this weakness to inject malicious scripts that execute within the context of other users' browsers when they access the vulnerable proxy server interface. The attack typically involves crafting malicious input that bypasses the server's validation mechanisms and gets stored or directly processed in the database view functionality. This creates a persistent XSS condition where the injected code executes whenever legitimate users interact with the affected URL database interface, potentially leading to session hijacking, credential theft, or further compromise of the web application environment. The vulnerability's impact is particularly severe as it affects the core proxy server functionality that handles URL database operations, making it accessible to attackers who can manipulate the proxy server's administrative interface.
The operational impact of CVE-2007-6570 extends beyond simple script injection, as it can enable attackers to perform session hijacking, steal user credentials, and potentially escalate privileges within the proxy server environment. The vulnerability exposes the underlying architecture to attacks that can compromise the integrity of the proxy server's URL database functionality, potentially allowing attackers to manipulate or extract sensitive information from the stored URL records. Organizations using affected proxy server versions face risks of unauthorized access to web resources, data exfiltration, and potential lateral movement within their network infrastructure. The vulnerability's persistence in the URL database viewing functionality means that once exploited, the malicious code can affect multiple users who access the database interface, creating a widespread impact across the organization's web proxy operations.
Mitigation strategies for CVE-2007-6570 primarily focus on immediate patching and configuration hardening measures. Organizations should upgrade to Sun Java System Web Proxy Server versions 4.0.6 or 3.6 SP11, which contain the necessary security fixes for this vulnerability. Additionally, implementing proper input validation and output encoding mechanisms within the proxy server configuration can help prevent similar issues in the future. Security measures should include disabling unnecessary proxy server features, implementing web application firewalls to detect and block malicious payloads, and conducting regular security assessments of proxy server configurations. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content, and T1071.004 for application layer protocol usage. Organizations should also consider implementing content security policies and regular security monitoring to detect potential exploitation attempts and maintain defense in depth against similar vulnerabilities in their web infrastructure.