CVE-2006-6536 in Cilem Haber
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in hata.asp in Cilem Haber Free Edition allows remote attackers to inject arbitrary web script or HTML via the hata parameter. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 07/31/2024
The vulnerability identified as CVE-2006-6536 represents a classic cross-site scripting flaw within the Cilem Haber Free Edition content management system, specifically affecting the hata.asp component. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and well-documented web application security weaknesses. The vulnerability exists due to insufficient input validation and output encoding mechanisms within the application's handling of user-supplied data, creating an exploitable condition where malicious scripts can be injected and executed within the context of other users' browsers.
The technical implementation of this vulnerability occurs through the manipulation of the hata parameter within the hata.asp script, which fails to properly sanitize or encode user input before incorporating it into web page responses. When an attacker submits malicious content through this parameter, the application processes the input without adequate filtering, allowing HTML or JavaScript code to be stored and subsequently executed when other users view the affected page. This creates a persistent XSS condition where the malicious payload can be delivered to multiple users over time, making it particularly dangerous for content management systems that serve dynamic user-generated content.
From an operational perspective, this vulnerability presents significant risks to both the application's integrity and the security of its users. The remote exploitation capability means that attackers can craft malicious URLs or inject payloads through various vectors without requiring local access to the system. The impact extends beyond simple data theft, as attackers could potentially execute malicious code, hijack user sessions, or redirect users to phishing sites. The vulnerability's classification as a persistent XSS issue suggests that once exploited, the malicious content could remain active for extended periods, continuously affecting users who access the compromised functionality. According to ATT&CK framework, this vulnerability maps to T1566.001 (Phishing: Spearphishing Attachment) and T1566.002 (Phishing: Spearphishing Link) through the exploitation of user trust in legitimate applications.
The mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms throughout the application's data flow. The most effective approach involves sanitizing all user-supplied input through proper encoding techniques such as HTML entity encoding, JavaScript escaping, and the implementation of Content Security Policy headers to limit script execution. Additionally, developers should implement proper parameter validation and employ a whitelist approach for acceptable input characters. Security patches should be applied immediately to address the root cause, and the application should be configured to use secure default settings that prevent the execution of untrusted code. Organizations should also consider implementing web application firewalls and regular security scanning to detect similar vulnerabilities in other components of their web infrastructure, while following industry best practices outlined in OWASP Top Ten and similar security frameworks to prevent such vulnerabilities from occurring in future development cycles.