CVE-2007-0547 in WebFORM
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in CGI-RESCUE WebFORM 4.3 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 08/18/2018
The vulnerability identified as CVE-2007-0547 represents a critical cross-site scripting flaw within CGI-RESCUE WebFORM version 4.3 and earlier implementations. This security weakness resides in the web application's failure to properly validate and sanitize user input before processing and rendering it within web pages. The vulnerability allows malicious actors to inject arbitrary web scripts or HTML content into web forms, potentially compromising user sessions and data integrity. The unspecified vectors suggest that the attack surface encompasses multiple input points within the web form processing mechanism, making the vulnerability particularly challenging to defend against through narrow defensive measures.
This XSS vulnerability directly maps to CWE-79, which specifically addresses Cross-Site Scripting flaws in web applications. The weakness stems from insufficient input validation and output encoding practices within the CGI-RESCUE WebFORM framework, where user-supplied data is not adequately filtered or escaped before being incorporated into dynamic web content. The vulnerability's classification as remote indicates that attackers can exploit this flaw without requiring physical access to the target system, making it particularly dangerous in web-facing applications where user interaction is expected.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform session hijacking, steal sensitive information, manipulate web content, and potentially redirect users to malicious sites. When users interact with compromised web forms, any malicious scripts injected through this vulnerability can execute within the context of other users' sessions, leading to unauthorized access to personal data, account takeovers, and potential data exfiltration. The remote nature of the attack means that exploitation can occur from anywhere on the internet, significantly expanding the potential attack surface.
Mitigation strategies for CVE-2007-0547 should prioritize immediate patching of affected CGI-RESCUE WebFORM installations to version 4.4 or later, where the XSS vulnerability has been addressed. Organizations should implement comprehensive input validation and output encoding mechanisms, ensuring that all user-supplied data is properly sanitized before processing. The implementation of Content Security Policy headers can provide additional defense-in-depth measures, while regular security audits and penetration testing should be conducted to identify similar vulnerabilities in web applications. According to ATT&CK framework category T1190, this vulnerability falls under the technique of Exploit Public-Facing Application, highlighting the need for robust application security controls and regular vulnerability assessments to prevent exploitation of web application flaws.