CVE-2015-4973 in Multi-Enterprise Integration Gateway
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in IBM Multi-Enterprise Integration Gateway 1.x through 1.0.0.1 and B2B Advanced Communications 1.0.0.2 and 1.0.0.3 before 1.0.0.3_2 allows remote attackers to inject arbitrary web script or HTML via a crafted URL.
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Analysis
by VulDB Data Team • 01/18/2018
The vulnerability identified as CVE-2015-4973 represents a critical cross-site scripting flaw affecting IBM Multi-Enterprise Integration Gateway versions 1.0.0.1 and earlier, along with B2B Advanced Communications versions 1.0.0.2 and 1.0.0.3 before 1.0.0.3_2. This security weakness resides in the web application layer of these enterprise integration products, specifically within their URL handling mechanisms. The flaw enables remote attackers to execute malicious web scripts or HTML code within the context of authenticated user sessions, potentially compromising the confidentiality, integrity, and availability of sensitive enterprise data. The vulnerability stems from insufficient input validation and output encoding practices in the web interface components that process user-supplied URL parameters.
The technical implementation of this XSS vulnerability occurs when the affected IBM products fail to properly sanitize or escape user-controllable input parameters within URL structures. Attackers can craft malicious URLs containing script payloads that get executed when legitimate users navigate to these specially crafted web addresses. The vulnerability exists in the web application's request processing pipeline where URL parameters are directly incorporated into web responses without adequate security controls. This flaw falls under CWE-79 which specifically addresses cross-site scripting vulnerabilities in software applications, and it aligns with ATT&CK technique T1059.007 for script injection attacks. The vulnerability affects the web-based management interfaces of these integration gateways, making it particularly dangerous as it could allow attackers to escalate privileges and access sensitive enterprise data.
The operational impact of CVE-2015-4973 extends beyond simple script execution, as it creates a persistent threat vector for attackers seeking to compromise enterprise integration environments. Successful exploitation could enable attackers to steal session cookies, perform unauthorized transactions, modify data, or redirect users to malicious sites. In enterprise settings where these products facilitate critical business processes and data exchanges, the vulnerability poses significant risks to business continuity and data protection. The affected systems typically handle sensitive enterprise communications and integration workflows, making them attractive targets for cybercriminals seeking to disrupt operations or gain unauthorized access to business-critical information. Organizations utilizing these products face potential data breaches, service disruptions, and regulatory compliance violations due to this vulnerability.
Organizations should implement immediate mitigation strategies including applying the vendor-provided security patches and updates released for these vulnerable versions. Network segmentation and web application firewalls can provide additional layers of protection by filtering malicious requests before they reach the vulnerable application components. Input validation controls should be strengthened to ensure all user-supplied parameters undergo proper sanitization before being processed or rendered in web responses. Regular security assessments and penetration testing of integration environments can help identify similar vulnerabilities in related systems. The remediation process should also include comprehensive security awareness training for administrators and developers to prevent similar issues in future application development cycles. Organizations should monitor for any related vulnerabilities in the IBM product ecosystem and maintain updated vulnerability management procedures to address emerging threats effectively.