CVE-2006-1980 in Online Banking
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in W2B Online Banking allows remote attackers to inject arbitrary web script or HTML via the (1) query string, (2) SID parameter, or (3) ilang parameter.
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Analysis
by VulDB Data Team • 09/10/2017
The vulnerability identified as CVE-2006-1980 represents a critical cross-site scripting flaw within the W2B Online Banking platform that exposes users to significant security risks. This vulnerability falls under the Common Weakness Enumeration category CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a classic example of insecure web application development practices. The flaw exists in the authentication and session management components of the banking application where user-provided parameters are not properly sanitized before being processed and returned to web browsers.
The technical implementation of this vulnerability occurs through three distinct attack vectors within the web application's parameter handling mechanisms. Attackers can exploit the vulnerability by manipulating the query string parameters, specifically targeting the SID parameter and ilang parameter which are used for session identification and language selection respectively. When these parameters contain malicious script code, the application fails to validate or escape the input before rendering it within the web page context. This allows attackers to inject arbitrary JavaScript code that executes within the victim's browser context, potentially leading to session hijacking, credential theft, or unauthorized transactions.
The operational impact of this vulnerability extends beyond simple script injection as it fundamentally compromises the security model of online banking applications. Users who interact with the vulnerable system may unknowingly execute malicious code that can capture their banking credentials, monitor their activities, or redirect them to fraudulent websites. The attack surface is particularly concerning given that online banking applications typically handle highly sensitive financial data, making this vulnerability a prime target for cybercriminals seeking financial gain. The vulnerability affects the core authentication and session management functionality, potentially allowing attackers to impersonate legitimate users and perform unauthorized banking operations.
Security professionals should implement multiple layers of defense to mitigate this vulnerability. The primary remediation involves implementing strict input validation and output encoding for all user-supplied parameters, particularly those used for session management and configuration settings. The application should employ proper parameter sanitization techniques that remove or escape potentially dangerous characters before processing user input. Additionally, implementing Content Security Policy headers can provide an additional barrier against script execution, while regular security testing including dynamic application security testing and manual code review should be conducted to identify similar vulnerabilities. The remediation process should align with industry standards such as the OWASP Top Ten and NIST Cybersecurity Framework to ensure comprehensive protection against similar cross-site scripting vulnerabilities in web applications. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts.