CVE-2012-0203 in InfoSphere Metadata Workbench
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in InfoSphere Metadata Workbench (MWB) 8.1 through 8.7 in IBM InfoSphere Information Server 8.1, 8.5 before FP3, and 8.7 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/08/2018
The CVE-2012-0203 vulnerability represents a critical cross-site scripting flaw discovered in IBM InfoSphere Metadata Workbench versions 8.1 through 8.7. This vulnerability exists within IBM InfoSphere Information Server 8.1, 8.5 before fix pack 3, and 8.7, making it a significant concern for organizations utilizing these metadata management platforms. The vulnerability stems from insufficient input validation and output encoding mechanisms within the MWB component, which fails to properly sanitize user-supplied data before rendering it in web interfaces. This flaw enables malicious actors to execute arbitrary web scripts or HTML code within the context of authenticated users' browsers, potentially leading to unauthorized access to sensitive metadata and system resources.
The technical implementation of this vulnerability involves multiple attack vectors that remain unspecified in the initial CVE description, suggesting that the flaw may manifest through various input points within the web application interface. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws in software applications. Attackers can exploit this weakness by crafting malicious payloads that are then executed when legitimate users view affected pages or interact with the metadata workbench interface. The attack typically involves injecting malicious scripts into input fields, URL parameters, or other user-controllable data elements that are subsequently displayed without proper sanitization. This type of vulnerability is particularly dangerous in enterprise metadata management systems where users often have elevated privileges and access to sensitive business intelligence data.
The operational impact of CVE-2012-0203 extends beyond simple script execution, as it can enable sophisticated attack chains that compromise entire metadata repositories. An attacker could potentially steal session cookies, redirect users to malicious sites, or execute commands on behalf of authenticated users within the InfoSphere environment. The vulnerability's presence in multiple versions of the software indicates a persistent flaw in the input validation mechanisms, making it challenging for organizations to remediate without comprehensive system updates. This type of vulnerability directly impacts the integrity and confidentiality of metadata assets, potentially exposing sensitive business information, data lineage, and system configurations that metadata workbenches typically manage. The attack surface is particularly concerning given that metadata workbenches often serve as central repositories for enterprise data governance and compliance information.
Organizations should implement multiple layers of defense to mitigate this vulnerability effectively. Immediate remediation efforts should focus on applying the appropriate IBM fix packs, particularly for InfoSphere Information Server 8.5 FP3 and later versions, as these contain the necessary patches to address the XSS flaws. Additionally, implementing proper input validation and output encoding mechanisms can provide defense-in-depth protection against similar vulnerabilities. Network-based security controls such as web application firewalls should be configured to detect and block suspicious script injection attempts targeting the affected application interfaces. The vulnerability aligns with ATT&CK technique T1566 which covers phishing with malicious attachments or links, and T1059 which involves command and script injection. Regular security assessments and penetration testing should be conducted to identify other potential injection points within the metadata management infrastructure, ensuring that similar vulnerabilities are not present in related components or integrated systems.