CVE-2010-1335 in Insky CMS
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in Insky CMS 006-0111, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the ROOT parameter to (1) city.get/city.get.php, (2) city.get/index.php, (3) message2.send/message.send.php, (4) message.send/message.send.php, and (5) pages.add/pages.add.php in insky/modules/. NOTE: some of these details are obtained from third party information.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 06/22/2025
The vulnerability CVE-2010-1335 represents a critical remote file inclusion flaw affecting Insky CMS versions 006-0111, specifically when the PHP configuration parameter register_globals is enabled. This vulnerability falls under the CWE-88 category of Improper Neutralization of Argument Delimiters in a Command, which is a fundamental weakness in input validation that allows attackers to manipulate application behavior through crafted input parameters. The flaw manifests in multiple locations within the cms modules directory, specifically targeting five distinct php files that process user input through the ROOT parameter. The vulnerability's exploitation potential is significantly amplified by the presence of register_globals, a deprecated PHP configuration that automatically creates global variables from GET, POST, and cookie data, creating dangerous attack surfaces that modern secure coding practices explicitly discourage.
The technical implementation of this vulnerability exploits the insecure handling of the ROOT parameter in the affected php scripts, which include city.get/city.get.php, city.get/index.php, message2.send/message.send.php, message.send/message.send.php, and pages.add/pages.add.php. When register_globals is enabled, these scripts fail to properly validate or sanitize the ROOT parameter, allowing remote attackers to inject malicious URLs that get executed as PHP code. The attack vector leverages the fact that the application directly incorporates user-supplied input into file inclusion operations without adequate sanitization, creating a classic remote code execution scenario. This vulnerability aligns with the ATT&CK technique T1190 - Exploit Public-Facing Application, as it targets publicly accessible web applications that process user input through web interfaces.
The operational impact of this vulnerability is severe, as it provides attackers with complete remote code execution capabilities on the affected system. An attacker can leverage this vulnerability to execute arbitrary PHP code, potentially gaining full control over the web server, accessing sensitive data, installing backdoors, or using the compromised system as a launch point for further attacks within the network. The vulnerability affects the core functionality of the Insky CMS, potentially compromising the entire content management system and any associated data stored within it. The exposure is particularly dangerous because it requires minimal privileges to exploit, and the attack can be executed through standard web browser interactions without requiring specialized tools or extensive knowledge of the target system's internal structure. The vulnerability's persistence across multiple module files indicates a systemic flaw in the application's input handling architecture.
Mitigation strategies for this vulnerability must address both the immediate security gap and the underlying architectural issues. The primary recommendation involves disabling the register_globals directive in PHP configuration, which eliminates the root cause of the vulnerability by preventing automatic creation of global variables from user input. Additionally, developers should implement proper input validation and sanitization for all user-supplied parameters, particularly those used in file inclusion operations. The application should employ absolute path validation, input filtering, and whitelisting mechanisms to prevent unauthorized file access. Security measures should include implementing proper access controls, regularly updating and patching the CMS, and conducting comprehensive security audits. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts. The remediation process should follow secure coding practices aligned with OWASP Top Ten recommendations and NIST cybersecurity frameworks to prevent similar vulnerabilities from reoccurring in future development cycles.