CVE-2009-0761 in 1.0.2
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in online.asp in Team Board 1.x allows remote attackers to inject arbitrary web script or HTML via the lookname parameter.
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Analysis
by VulDB Data Team • 11/23/2024
The vulnerability identified as CVE-2009-0761 represents a classic cross-site scripting flaw within Team Board 1.x software, specifically affecting the online.asp component. This issue enables remote attackers to execute malicious scripts in the context of a victim's browser through manipulation of the lookname parameter, demonstrating a fundamental weakness in input validation and output encoding practices. The vulnerability exists in the web application's handling of user-supplied data without proper sanitization mechanisms, creating an attack surface that can be exploited to compromise user sessions and potentially gain unauthorized access to sensitive information.
The technical implementation of this XSS vulnerability stems from insufficient validation of the lookname parameter in the online.asp script, which directly incorporates user input into the web response without appropriate HTML escaping or encoding. This flaw falls under CWE-79 - Improper Neutralization of Input During Web Page Generation, which specifically addresses the failure to properly encode or escape user-controllable data before including it in web output. The vulnerability operates at the application layer and can be classified as a reflected XSS attack since the malicious payload is reflected back to the user through the vulnerable parameter. Attackers can craft malicious URLs containing script tags or other HTML content that gets executed when users access the compromised page, making this a significant threat to user security and application integrity.
The operational impact of this vulnerability extends beyond simple script execution, as it can be leveraged to perform session hijacking, deface web applications, steal cookies, or redirect users to malicious sites. Attackers can exploit this weakness to impersonate legitimate users, potentially gaining access to private communications or sensitive data within the Team Board application. The vulnerability affects the confidentiality, integrity, and availability of the web application by allowing unauthorized parties to manipulate the application's behavior and potentially compromise the entire user base. This type of vulnerability can also serve as a stepping stone for more sophisticated attacks, as demonstrated by the ATT&CK framework's methodology for credential access through web-based attacks and session manipulation techniques.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding practices. The most effective approach involves sanitizing all user-supplied input through proper HTML escaping before incorporating it into web responses, which aligns with the OWASP Secure Coding practices for preventing XSS vulnerabilities. Developers should implement strict parameter validation for the lookname field and ensure that all dynamic content is properly encoded using context-appropriate escaping mechanisms. Additionally, the implementation of Content Security Policy (CSP) headers can provide an additional layer of protection by restricting the sources from which scripts can be executed within the application context. Regular security assessments and code reviews should be conducted to identify and remediate similar vulnerabilities in other components of the web application, ensuring comprehensive protection against cross-site scripting attacks and maintaining the overall security posture of the system.