CVE-2008-6192 in Java System Portal Server
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in unspecified Portlets in Sun Java System Portal Server 7.0 and 7.1 allow remote attackers to inject arbitrary web script or HTML via unknown vectors.
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Analysis
by VulDB Data Team • 08/04/2021
The vulnerability identified as CVE-2008-6192 represents a critical security flaw in Sun Java System Portal Server versions 7.0 and 7.1 that exposes multiple cross-site scripting vulnerabilities within unspecified portlets. This vulnerability falls under the CWE-79 category of Cross-Site Scripting and operates as a server-side input validation failure that permits malicious actors to inject arbitrary web scripts or HTML content into the portal environment. The affected portlets serve as the primary interface components through which users interact with portal services, making them ideal attack vectors for executing malicious code within the context of victim sessions.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input within the portal server's portlet components. Attackers can exploit this weakness by crafting malicious payloads that are then executed when other users view the affected portlet content. These unknown vectors likely involve parameters or input fields within the portlet rendering process that do not properly validate or escape user-provided data before presentation. The vulnerability's impact extends beyond simple script execution as it enables attackers to perform session hijacking, defacement of portal content, and potentially gain unauthorized access to sensitive information through the exploitation of the compromised user sessions.
The operational impact of CVE-2008-6192 is severe for organizations utilizing Sun Java System Portal Server as it creates a persistent threat vector that can compromise the entire portal infrastructure. When exploited, these XSS vulnerabilities allow attackers to manipulate the portal's user interface, inject malicious content that affects all portal users, and potentially escalate privileges through session manipulation techniques. The attack surface is particularly concerning given that portal servers typically serve as central access points for enterprise applications and services, making successful exploitation equivalent to gaining a foothold within the broader enterprise network. This vulnerability directly aligns with ATT&CK technique T1531 for 'Modify System Image' and T1566 for 'Phishing' as it enables attackers to manipulate portal content and potentially redirect users to malicious sites.
Organizations should implement comprehensive mitigation strategies that include immediate patching of affected systems, deployment of web application firewalls with XSS detection capabilities, and implementation of strict input validation controls. The mitigation approach should incorporate Content Security Policy (CSP) headers to prevent unauthorized script execution, regular security assessments of portal components, and enhanced monitoring of user session activities. Additionally, administrators should consider implementing proper output encoding mechanisms for all portal content and establish secure coding practices for future portal development. The vulnerability's classification under CWE-79 emphasizes the need for robust input sanitization and output encoding controls, while the ATT&CK framework suggests implementing network segmentation and user behavior monitoring to detect potential exploitation attempts and prevent lateral movement within the compromised environment.