CVE-2007-3991 in cvmatik
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in cv.asp in Asp cvmatik 1.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) Adiniz (Ady), (2) Soyadiniz (Soyady), (3) Ehliyet, (4) Askerlik, and (5) GSM parameters; and possibly other unspecified vectors.
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Analysis
by VulDB Data Team • 07/03/2024
The vulnerability identified as CVE-2007-3991 represents a critical cross-site scripting flaw in the Asp cvmatik 1.1 web application and earlier versions. This vulnerability specifically affects the cv.asp component which processes user input through multiple parameters including Adiniz (Ady), Soyadiniz (Soyady), Ehliyet, Askerlik, and GSM fields. The flaw stems from inadequate input validation and output encoding mechanisms within the application's processing logic, creating an environment where malicious actors can inject arbitrary web scripts or HTML code into the application's response. Such vulnerabilities fall under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to execute scripts in the context of other users.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input containing script code within any of the five identified parameters. When the vulnerable application processes these inputs without proper sanitization, the malicious code becomes embedded in the web page response and executes in the browsers of unsuspecting users who visit the affected pages. This creates a persistent threat where the injected scripts can perform various malicious activities including session hijacking, credential theft, redirection to malicious sites, or data exfiltration. The vulnerability's impact extends beyond simple script execution as it can be leveraged to create more sophisticated attacks such as credential harvesting or browser-based malware delivery.
From an operational standpoint, this vulnerability poses significant risks to organizations using the cvmatik application, particularly those in human resources or recruitment sectors where personal information is frequently processed. The attack surface is broad since any user interaction with the cv.asp page could potentially be exploited, making the vulnerability particularly dangerous in environments with multiple concurrent users. The vulnerability's persistence means that once exploited, malicious scripts can continue to affect users until the application is patched or the compromised data is cleared. This makes it especially concerning for web applications handling sensitive personal data, as the potential for long-term exposure and data compromise increases significantly.
Security professionals should implement multiple layers of mitigation strategies to address this vulnerability effectively. The primary remediation involves input validation and output encoding at all points where user data is processed, ensuring that any potentially malicious content is properly escaped or filtered before being rendered in web responses. The implementation of Content Security Policy (CSP) headers can provide additional protection by restricting script execution sources and preventing unauthorized code injection. Organizations should also consider implementing proper web application firewalls and regular security scanning to detect and prevent exploitation attempts. Additionally, the vulnerability's classification under ATT&CK technique T1566.001 - Phishing with Malicious Attachments and T1203 - Exploitation for Client Execution highlights the need for comprehensive security awareness training to prevent social engineering components that might accompany such exploitation attempts. The vulnerability demonstrates the critical importance of proper input sanitization and output encoding practices as outlined in OWASP Top Ten security guidelines, emphasizing that simple parameter validation is insufficient for preventing XSS attacks in modern web applications.