CVE-2010-4613 in Hycus
Summary
by MITRE
Multiple directory traversal vulnerabilities in Hycus CMS 1.0.3 allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the site parameter to (1) index.php and (2) admin.php.
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Analysis
by VulDB Data Team • 06/13/2025
The vulnerability described in CVE-2010-4613 represents a critical directory traversal flaw affecting Hycus CMS version 1.0.3. This issue stems from inadequate input validation within the application's handling of the site parameter, which allows malicious actors to manipulate file inclusion mechanisms through crafted dot-dot-slash sequences. The vulnerability exists in two primary entry points: index.php and admin.php, making it particularly dangerous as it affects both frontend and backend functionality of the content management system. The flaw enables remote attackers to traverse the file system hierarchy and access arbitrary local files on the server, potentially leading to complete system compromise.
This directory traversal vulnerability maps directly to CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The technical implementation involves the application failing to properly sanitize user-supplied input before using it in file operations. When the site parameter contains sequences like ../../../etc/passwd, the application processes these paths without adequate validation, allowing attackers to bypass normal access controls and potentially execute malicious code. The vulnerability operates at the core of input sanitization and file access control mechanisms, exploiting the fundamental weakness in how the CMS handles relative path references.
The operational impact of CVE-2010-4613 extends far beyond simple information disclosure. Attackers can leverage this vulnerability to execute arbitrary code on the target server, potentially gaining full administrative control over the CMS installation. The implications include unauthorized access to sensitive data, modification of website content, creation of backdoor accounts, and potential use as a foothold for broader network infiltration. Given that this vulnerability affects both frontend and backend interfaces, attackers can compromise not just the public-facing website but also the administrative panel, enabling them to perform actions such as adding new users, modifying content, or even installing malware. The remote nature of this attack means that no local access is required, making it particularly dangerous for web applications that are publicly accessible.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization mechanisms throughout the application. The primary defense involves ensuring that all user-supplied parameters, particularly those used in file operations, are properly validated and sanitized before processing. Implementing a whitelist approach for acceptable site parameters and rejecting any input containing directory traversal sequences such as .. or / is essential. Additionally, restricting file access permissions and implementing proper access controls can limit the damage that can be caused by successful exploitation. Organizations should also consider implementing web application firewalls that can detect and block suspicious path traversal attempts. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other applications. The remediation process should include updating the CMS to a patched version if available, or implementing proper input validation measures to prevent the exploitation of this vulnerability. According to ATT&CK framework, this vulnerability aligns with T1059.007 for command and scripting interpreter and T1566 for credential access through exploitation of directory traversal vulnerabilities.