CVE-2008-2494 in Zina
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in index.php in Zina 1.0 RC3 allows remote attackers to inject arbitrary web script or HTML via the l parameter.
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Analysis
by VulDB Data Team • 09/25/2018
The vulnerability identified as CVE-2008-2494 represents a classic cross-site scripting flaw within the Zina 1.0 RC3 media player application. This issue specifically affects the index.php script where user input is not properly sanitized before being rendered back to web browsers. The vulnerability manifests through the l parameter which serves as an entry point for malicious code injection, allowing remote attackers to execute arbitrary web scripts or HTML content within the context of other users' browsers. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws according to the CWE database maintained by the MITRE Corporation.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing crafted script code within the l parameter value. When a victim accesses this specially crafted link, the Zina application processes the unvalidated input and includes it directly in the page output without proper HTML escaping or encoding. This creates an environment where the injected script executes in the victim's browser with the privileges of the logged-in user, potentially leading to session hijacking, credential theft, or further malicious activities. The vulnerability demonstrates poor input validation practices and highlights the critical importance of implementing proper output encoding mechanisms as recommended by the OWASP Top Ten Project and the ATT&CK framework's T1203 technique for credential access through web application attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable sophisticated attack chains that compromise user sessions and potentially provide attackers with persistent access to the affected system. Users who visit malicious links may unknowingly execute scripts that can steal cookies, modify page content, redirect to malicious sites, or even install malware on the victim's device. This vulnerability is particularly concerning in web applications where user interaction is common and where session management is critical for maintaining system security. The attack vector is relatively simple to exploit, requiring only the ability to construct malicious URLs, which makes it a high-risk vulnerability that could be leveraged by both skilled attackers and automated exploit tools. Organizations using Zina 1.0 RC3 should consider immediate remediation through input validation and output encoding implementations that prevent such injection attacks, as outlined in the NIST Cybersecurity Framework and the ISO 27001 information security standards. The vulnerability serves as a reminder of the fundamental security principle that all user-supplied input must be treated as untrusted and properly validated before being processed or displayed within web applications.