CVE-2023-47489 is a CSV injection vulnerability identified in Combodo iTop version 3.1.0-2-11973. The vulnerability arises in the functionality that allows exporting data as CSV files, specifically within the export-v2.php and ajax.render.php components. CSV injection, also known as formula injection, occurs when untrusted input is embedded into CSV files without proper sanitization. When such a crafted CSV file is opened in spreadsheet software like Microsoft Excel or LibreOffice Calc, malicious formulas or scripts embedded in the CSV cells can be executed, potentially leading to arbitrary code execution on the client machine. In this case, the vulnerability allows a local attacker to inject crafted scripts into exported CSV files, which when opened by users with sufficient privileges, could execute arbitrary code. The attack vector requires local access to the iTop application to trigger the export functionality with malicious input. Although no CVSS score is assigned yet and no known exploits are reported in the wild, the vulnerability represents a significant risk because it leverages trusted export functionality to deliver malicious payloads. The lack of patch links suggests that a fix may not yet be publicly available, emphasizing the need for immediate mitigation steps. The vulnerability affects a specific version of the iTop IT service management software, which is used by organizations to manage IT assets and services, making the integrity and confidentiality of exported data critical.

For European organizations using Combodo iTop, this vulnerability poses a risk of arbitrary code execution on systems of users who open maliciously crafted CSV exports. This can lead to compromise of user machines, potential lateral movement within the network, and exposure of sensitive IT management data. Given that iTop is often used in IT service management, exploitation could undermine operational integrity and confidentiality of IT asset data. The local attacker requirement limits remote exploitation but insider threats or compromised local accounts could leverage this vulnerability. The impact is heightened in environments where exported CSV files are shared widely or opened without sufficient caution. Additionally, organizations with strict data governance and compliance requirements in Europe (such as GDPR) could face regulatory consequences if data integrity or confidentiality is breached due to this vulnerability. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits once the vulnerability details are public.

1. Immediate mitigation should include restricting access to the export functionality to trusted users only and monitoring export activities for suspicious behavior. 2. Educate users to avoid opening CSV files from untrusted or unexpected sources, especially those generated by iTop exports. 3. Implement input sanitization or escaping of special characters (such as '=', '+', '-', '@') in CSV exports to neutralize formula injection vectors. 4. If possible, disable CSV export temporarily until a patch is available. 5. Monitor Combodo's official channels for patches or updates addressing this vulnerability and apply them promptly once released. 6. Employ endpoint protection solutions that can detect and block malicious macro or script execution triggered from spreadsheet applications. 7. Review and enforce strict user privilege management to minimize local attacker capabilities. 8. Consider alternative export formats that do not support formula execution, such as plain text or JSON, if supported by the application.