CVE-2006-0627 in Clever Copy
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Clever Copy 2.0, 2.0a, and 3.0 allows remote attackers to inject arbitrary web script or HTML via the (1) Referer or (2) X-Forwarded-For headers in an HTTP request, which are not properly handled when the administrator accesses Site Stats.
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Analysis
by VulDB Data Team • 09/11/2017
This cross-site scripting vulnerability exists in Clever Copy content management systems version 2.0, 2.0a, and 3.0 where the application fails to properly sanitize HTTP headers during administrator site statistics access. The flaw specifically affects the Referer and X-Forwarded-For headers which are processed without adequate input validation or output encoding, creating a persistent XSS vector that can be exploited by remote attackers to execute malicious scripts in the context of administrator sessions.
The technical implementation of this vulnerability stems from improper handling of user-supplied data within HTTP headers that are typically considered trusted or automatically processed by web applications. When administrators access site statistics, the system retrieves these header values and displays them directly in the web interface without proper sanitization, allowing attackers to inject malicious JavaScript code through crafted header values. This represents a classic reflected XSS vulnerability where the malicious payload is delivered via HTTP headers rather than traditional form fields or URL parameters.
The operational impact of this vulnerability is significant as it enables attackers to gain unauthorized access to administrator sessions, potentially leading to complete system compromise. An attacker could inject scripts that steal session cookies, redirect administrators to malicious sites, or modify website content. The vulnerability is particularly dangerous because it requires no user interaction beyond making a request to the target system, and the attack vector is隐蔽 and difficult to detect since it operates through standard HTTP headers that are automatically included in most web requests.
This vulnerability maps to CWE-79 Improper Neutralization of Input During Web Page Generation, which is a fundamental web application security weakness categorized under the OWASP Top Ten as one of the most critical application security risks. The attack pattern aligns with ATT&CK technique T1566.001 for initial access through malicious web content, and T1078 for valid accounts usage when successful exploitation results in administrator session hijacking. Organizations using affected Clever Copy versions should immediately implement input validation for all HTTP headers, implement proper output encoding for all dynamic content, and consider deploying web application firewalls to detect and block malicious header content. The vulnerability also highlights the importance of securing all input vectors including HTTP headers, which are often overlooked in traditional security testing approaches.