CVE-2016-0223 in Forms Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Webform Framework API in IBM Forms Server 4.0.x, 8.0.x, 8.1, and 8.2 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. IBM X-Force ID: 110006.
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Analysis
by VulDB Data Team • 02/05/2021
The vulnerability identified as CVE-2016-0223 represents a critical cross-site scripting flaw within IBM Forms Server's Webform Framework API component. This security weakness affects multiple versions including 4.0.x, 8.0.x, 8.1, and 8.2, making it a widespread concern for organizations utilizing IBM's form processing solutions. The vulnerability stems from insufficient input validation mechanisms that fail to properly sanitize user-supplied data before it is rendered in web responses. Attackers can exploit this weakness by crafting malicious payloads that contain embedded scripts or HTML content, which then execute in the context of other users' browsers when they interact with affected applications.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. This classification indicates that the flaw occurs when the application incorporates untrusted data into web pages without proper validation or encoding, creating opportunities for malicious script execution. The unspecified vectors mentioned in the description suggest that the vulnerability may be exploitable through multiple attack surfaces within the Webform Framework API, potentially including form field inputs, URL parameters, or other user-controllable data elements. The attack surface is particularly concerning given that IBM Forms Server is commonly used for enterprise-level form processing and data collection, making it a valuable target for adversaries seeking to compromise user sessions or exfiltrate sensitive information.
From an operational impact perspective, successful exploitation of this vulnerability could enable attackers to perform session hijacking, steal user credentials, redirect victims to malicious sites, or inject malware into user browsers. The remote nature of the attack means that threat actors do not require physical access to systems or network proximity to exploit the vulnerability. Organizations using affected versions of IBM Forms Server face significant risks including data breaches, unauthorized access to sensitive information, and potential compromise of entire web applications that rely on the forms framework. The vulnerability could also facilitate more sophisticated attacks such as privilege escalation or lateral movement within network environments where the forms server is deployed.
Mitigation strategies for this vulnerability should include immediate application of IBM's security patches and updates released to address the XSS flaw. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent malicious content from being processed or displayed in web applications. Network segmentation and web application firewalls can provide additional layers of protection by monitoring and filtering traffic to and from affected systems. Security teams should also conduct thorough vulnerability assessments to identify all instances of the affected IBM Forms Server versions within their environments and prioritize remediation efforts based on risk exposure. Regular security monitoring and incident response procedures should be enhanced to detect potential exploitation attempts, while user education programs can help reduce the risk of successful social engineering attacks that might leverage this vulnerability. The remediation process should follow industry best practices for vulnerability management and include verification that the patches have been successfully applied without introducing compatibility issues with existing applications.