CVE-2018-1444 in WebSphere Portal
Summary
by MITRE
IBM WebSphere Portal 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: 139906.
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Analysis
by VulDB Data Team • 02/21/2023
IBM WebSphere Portal versions 8.5 and 9.0 contain a cross-site scripting vulnerability that represents a critical security flaw in the web application framework. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a fundamental web security weakness that occurs when an application includes untrusted data in web pages without proper validation or encoding. The flaw specifically affects the user interface components of the portal system, allowing malicious actors to inject malicious JavaScript code through user input fields or parameters that are not properly sanitized.
The technical implementation of this vulnerability enables attackers to execute arbitrary code within the context of a victim's browser session, potentially compromising the integrity of the web application and the data it handles. When users interact with the portal interface, the malicious script can be executed in the browser of other users who view affected content, creating a persistent threat that can be exploited to steal session cookies, credentials, or other sensitive information. The vulnerability's impact is particularly severe because it occurs within a trusted session environment where users have legitimate access rights, making it easier for attackers to escalate privileges and gain unauthorized access to protected resources.
The operational consequences of this vulnerability extend beyond simple script execution, as it can be leveraged to perform session hijacking attacks and credential theft within the trusted web environment. Attackers can craft malicious payloads that appear legitimate to the portal's user interface, making detection more difficult and increasing the likelihood of successful exploitation. The vulnerability's presence in IBM WebSphere Portal 8.5 and 9.0 systems creates a significant risk for organizations relying on these platforms for enterprise portal services, as the attack surface includes all user-facing components that accept input from external sources. This makes the vulnerability particularly dangerous in environments where sensitive business data is accessed through the portal, as the attacker can potentially gain access to confidential information and system resources.
Organizations should implement immediate mitigations including input validation and output encoding controls to prevent the injection of malicious scripts into the portal interface. The recommended approach involves implementing strict content security policies that prevent the execution of inline JavaScript and other potentially dangerous code elements. Additionally, organizations should ensure that all user inputs are properly sanitized and validated before being processed or displayed within the portal interface. IBM has released patches and fixes for this vulnerability that should be applied immediately to prevent exploitation. The remediation process should include comprehensive testing of the portal environment to verify that the security controls are properly implemented and that no other similar vulnerabilities exist within the application framework. Security monitoring should be enhanced to detect potential exploitation attempts and to maintain visibility into user activities that might indicate unauthorized access attempts.