CVE-2018-1716 in WebSphere Portal
Summary
by MITRE
IBM WebSphere Portal 7.0, 8.0, 8.5, and 9.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 147164.
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Analysis
by VulDB Data Team • 05/19/2023
IBM WebSphere Portal versions 7.0, 8.0, 8.5, and 9.0 contain a critical cross-site scripting vulnerability that represents a significant security risk for organizations relying on this enterprise portal platform. This vulnerability falls under CWE-79 - Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly sanitize user input before incorporating it into web page content. The flaw enables attackers to inject malicious JavaScript code through user-controllable input fields within the web interface, potentially compromising the entire portal ecosystem.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the WebSphere Portal's user interface rendering components. When user-supplied data is processed and displayed without proper sanitization, attackers can craft malicious payloads that execute within the context of authenticated user sessions. This cross-site scripting vulnerability operates at the application layer, specifically targeting the portal's web presentation layer where user input is directly embedded into HTML responses without adequate protection measures. The attack vector typically involves manipulating form fields, URL parameters, or other user-controllable inputs that are subsequently rendered on portal pages.
The operational impact of this vulnerability extends beyond simple script execution, as it creates a persistent threat for credential theft and session hijacking within trusted environments. When authenticated users interact with compromised portal pages, their sessions become vulnerable to manipulation by attackers who can extract sensitive information including session cookies, authentication tokens, and potentially user credentials. This represents a severe risk to enterprise security posture since the portal typically serves as a central access point for business-critical applications and services. The vulnerability's exploitation can lead to unauthorized access to restricted portal features, data exfiltration, and potential lateral movement within the corporate network, making it particularly dangerous for organizations with complex IT infrastructures.
Organizations should implement immediate mitigations including applying the relevant IBM security patches and updates released for this vulnerability, implementing comprehensive input validation controls, and deploying web application firewalls to detect and block malicious script injection attempts. The mitigation strategy should align with ATT&CK framework technique T1566 - Phishing, as this vulnerability could be exploited through social engineering campaigns targeting portal users. Additionally, organizations should conduct thorough security assessments of their portal configurations, implement proper output encoding mechanisms, and establish monitoring procedures to detect anomalous user behavior patterns that might indicate exploitation attempts. Regular security training for administrators and users remains critical to prevent successful exploitation through user interaction-based attack vectors.