CVE-2012-4836 in Cognos Business Intelligence
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in IBM Cognos Business Intelligence (BI) 8.4.1 before IF1, 10.1 before IF2, 10.1.1 before IF2, and 10.2 before IF1 allows remote authenticated users to inject arbitrary web script or HTML via a crafted string that is not properly handled during rendering of stored data.
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Analysis
by VulDB Data Team • 02/06/2018
The vulnerability identified as CVE-2012-4836 represents a critical cross-site scripting flaw within IBM Cognos Business Intelligence platforms across multiple version ranges. This security weakness affects IBM Cognos BI 8.4.1 before IF1, 10.1 before IF2, 10.1.1 before IF2, and 10.2 before IF1, creating a significant attack surface for malicious actors seeking to compromise web applications. The vulnerability stems from improper handling of user-supplied input during the rendering process of stored data, allowing attackers to inject malicious scripts that execute within the context of other users' browsers.
The technical exploitation of this vulnerability occurs when authenticated users interact with the affected IBM Cognos BI system and encounter stored data containing malicious payloads. The flaw manifests as a failure in input sanitization mechanisms that should normally validate and escape user-provided strings before rendering them in web interfaces. This improper handling creates a persistent XSS vector where attackers can craft specific strings that, when processed and displayed by the application, execute arbitrary JavaScript code in the browsers of unsuspecting victims. The vulnerability specifically impacts the rendering pipeline of stored data, making it particularly dangerous as it can affect data that users trust and interact with regularly.
The operational impact of CVE-2012-4836 extends beyond simple script execution, as it enables attackers to potentially steal session cookies, modify data presentation, redirect users to malicious sites, or perform actions on behalf of authenticated users. This vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications, and maps to ATT&CK technique T1566.001 for initial access through malicious web content. The authenticated nature of the attack means that attackers must first gain legitimate user credentials, but once inside the system, they can leverage this vulnerability to escalate their privileges or extract sensitive information from the business intelligence platform.
Organizations utilizing affected IBM Cognos BI versions should prioritize immediate remediation through official IBM security patches and interim mitigations. The vulnerability's persistence in multiple version streams indicates a fundamental flaw in input validation that requires comprehensive patching across all affected releases. Security teams should implement additional monitoring for suspicious data entry patterns and consider web application firewalls as additional protective layers. The flaw represents a significant risk to data integrity and user security within business intelligence environments where sensitive corporate information is processed and displayed, making prompt remediation essential to prevent potential data breaches or unauthorized access to critical business analytics systems.