CVE-2023-29006 in Order GLPI Plugin
Summary
by MITRE • 04/05/2023
The Order GLPI plugin allows users to manage order management within GLPI. Starting with version 1.8.0 and prior to versions 2.7.7 and 2.10.1, an authenticated user that has access to standard interface can craft an URL that can be used to execute a system command. Versions 2.7.7 and 2.10.1 contain a patch for this issue. As a workaround, delete the `ajax/dropdownContact.php` file from the plugin.
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Analysis
by VulDB Data Team • 04/06/2023
The vulnerability described in CVE-2023-29006 affects the Order GLPI plugin, which is designed to facilitate order management within the GLPI (Gestionnaire Libre de Parc Informatique) IT asset management platform. This plugin enables users to handle various aspects of order processing, including vendor management, purchase requests, and related administrative functions. The flaw exists in versions starting from 1.8.0 up to and including versions 2.7.6 and 2.10.0, representing a significant security gap that could allow unauthorized command execution on the affected system. The vulnerability specifically targets authenticated users who have access to the standard GLPI interface, making it particularly concerning as it leverages legitimate user privileges to bypass normal security controls.
The technical implementation of this vulnerability stems from improper input validation and sanitization within the plugin's ajax/dropdownContact.php file. An authenticated user can manipulate URL parameters to inject and execute arbitrary system commands on the server hosting the GLPI instance. This represents a classic command injection vulnerability that falls under CWE-77, which specifically addresses improper neutralization of special elements used in OS commands. The flaw allows attackers to execute commands with the privileges of the web server process, potentially leading to complete system compromise. The vulnerability is particularly dangerous because it requires only standard user access rights to exploit, eliminating the need for elevated privileges or additional attack vectors.
The operational impact of this vulnerability extends beyond simple command execution, as it provides attackers with the ability to manipulate the underlying system in ways that could lead to data exfiltration, system compromise, or further lateral movement within the network. An attacker could potentially use this vulnerability to install backdoors, modify system files, access sensitive data, or even escalate privileges to gain administrative access to the GLPI server. The vulnerability affects organizations that rely on GLPI for IT asset management, particularly those with multiple users who have access to the standard interface, as any authenticated user could potentially exploit this weakness. This makes it a critical concern for enterprises that store sensitive information within their GLPI instances.
The most effective mitigation strategy involves upgrading to the patched versions 2.7.7 or 2.10.1, which contain proper input validation and sanitization measures that prevent the command injection attack. Organizations unable to immediately upgrade can implement the temporary workaround of deleting the ajax/dropdownContact.php file from the plugin directory, effectively removing the vulnerable code path. This approach aligns with ATT&CK technique T1059.001 for command and scripting interpreter, as it prevents the execution of system commands through the web interface. Additionally, implementing network segmentation, access controls, and regular security audits can help reduce the attack surface and limit potential damage from such vulnerabilities. Organizations should also consider implementing web application firewalls to detect and block suspicious URL patterns that could indicate exploitation attempts. The vulnerability demonstrates the importance of proper input validation and the principle of least privilege in web application security, as it shows how a single flawed component can provide attackers with elevated system access.