CVE-2016-0209 in WebSphere Portal
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in IBM WebSphere Portal 8.5.0 before CF09 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 11/02/2024
The CVE-2016-0209 vulnerability represents a critical cross-site scripting flaw within IBM WebSphere Portal 8.5.0 before Cumulative Fix 09, exposing organizations to significant web application security risks. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically targeting the web portal's input validation mechanisms that fail to properly sanitize user-supplied data before rendering it within web pages. The unspecified attack vectors suggest that multiple entry points within the portal's interface could potentially be exploited, making the vulnerability particularly dangerous as it may be accessible through various user interaction patterns.
The technical nature of this vulnerability allows remote attackers to inject malicious web scripts or HTML content into the portal's web interface, enabling them to execute arbitrary code within the context of the victim's browser session. This type of vulnerability typically occurs when the application fails to properly encode or escape user input before displaying it in web pages, creating opportunities for attackers to manipulate the application's behavior and potentially access sensitive user data or perform unauthorized actions. The vulnerability's impact extends beyond simple script execution as it can be leveraged to steal session cookies, redirect users to malicious sites, or perform actions on behalf of authenticated users.
From an operational standpoint, this vulnerability poses severe risks to organizations relying on IBM WebSphere Portal for their web applications, as it can lead to complete compromise of user sessions and potential data breaches. Attackers could exploit this vulnerability to impersonate legitimate users, access restricted content, modify portal functionality, or establish persistent backdoors within the web application environment. The remote nature of the attack means that exploitation does not require physical access to the system and can be carried out from anywhere on the internet, making it particularly attractive to malicious actors. This vulnerability directly impacts the confidentiality, integrity, and availability of the portal's services, potentially affecting thousands of users who depend on the portal for business-critical applications.
The remediation approach for this vulnerability involves applying the official IBM Cumulative Fix 09 for WebSphere Portal 8.5.0, which addresses the input validation flaws that enable the XSS attack vectors. Organizations should also implement additional defensive measures including comprehensive input validation, output encoding, and regular security assessments of their portal applications. The vulnerability demonstrates the importance of maintaining up-to-date security patches and following secure coding practices that align with industry standards such as those recommended by the Open Web Application Security Project. Security teams should also consider implementing web application firewalls and monitoring for suspicious user input patterns to detect potential exploitation attempts. The ATT&CK framework categorizes this vulnerability under the 'Command and Control' and 'Initial Access' phases, as it provides attackers with a method to establish persistent access to the target environment through web-based attack vectors.