CVE-2006-6516 in KDPics
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in KDPics 1.16 and earlier allow remote attackers to execute arbitrary PHP code via a URL in the (1) page parameter to (a) index.php3, or the (2) lib_path parameter to (b) authenticate.inc.php3 or (c) lib/exifer/exif.php.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 01/18/2025
The vulnerability described in CVE-2006-6516 represents a critical remote file inclusion flaw affecting KDPics version 1.16 and earlier. This vulnerability falls under the category of insecure direct object references and improper input validation, creating pathways for remote attackers to execute arbitrary PHP code on affected systems. The flaw manifests through multiple entry points within the application's codebase, specifically targeting parameter handling in three distinct files that process user-supplied input without adequate sanitization or validation.
The technical implementation of this vulnerability stems from the application's failure to properly validate and sanitize user input before incorporating it into file inclusion operations. When attackers manipulate the page parameter in index.php3 or the lib_path parameter in authenticate.inc.php3 and lib/exifer/exif.php, they can inject malicious URLs that get processed by PHP's include or require functions. This allows attackers to load and execute arbitrary PHP code from remote servers, effectively bypassing the application's intended security boundaries and gaining unauthorized access to the underlying system.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with complete control over the affected web server. Successful exploitation enables remote code execution, which can lead to data theft, system compromise, and potential lateral movement within network environments. Attackers can leverage this vulnerability to install backdoors, exfiltrate sensitive information, or use the compromised server as a staging ground for further attacks. The vulnerability's widespread nature across multiple files in the application increases the attack surface and makes it particularly dangerous for organizations running affected versions.
From a cybersecurity perspective, this vulnerability aligns with CWE-88, which describes improper neutralization of special elements used in an OS command, and CWE-94, which covers improper control of generation of code. The attack vector follows patterns consistent with the ATT&CK framework's technique T1190 for exploiting vulnerabilities in web applications. Organizations should prioritize immediate remediation by upgrading to a patched version of KDPics, implementing proper input validation, and applying web application firewalls to monitor for suspicious parameter manipulation attempts. Additionally, regular security audits and code reviews should be conducted to identify similar vulnerabilities in other applications within the organization's infrastructure.