CVE-2023-48029 is a CSV Injection vulnerability affecting Corebos version 8.0 and earlier. Corebos is a CRM and business process management platform used by organizations to manage customer data and workflows. The vulnerability arises because the application allows low-privileged users to inject malicious content into CSV files that are generated when an administrator exports user management data. Specifically, an attacker with limited access can insert specially crafted formulas or commands into fields that are included in the CSV export. When an administrator subsequently exports this data and opens the CSV file in spreadsheet software such as Microsoft Excel, the malicious payload embedded in the CSV cells can execute arbitrary commands on the administrator's machine. This attack vector leverages the way spreadsheet applications interpret certain characters (e.g., '=', '+', '-', '@') at the beginning of a cell as formulas, which can be exploited to run commands or scripts. The vulnerability does not require the attacker to have administrative privileges, only the ability to input data that will be included in the CSV export. However, exploitation requires the administrator to open the exported CSV file, which involves user interaction. There is no known public exploit in the wild at this time, and no official patch or CVSS score has been published yet. The lack of a patch means organizations must rely on mitigation strategies to reduce risk. This vulnerability highlights the risk of insufficient input sanitization and output encoding in applications that export data to formats interpreted by client-side software.

For European organizations using Corebos 8.0 or earlier, this vulnerability poses a significant risk to the confidentiality and integrity of administrative systems. If exploited, attackers could execute arbitrary commands on an administrator's workstation, potentially leading to credential theft, lateral movement within the network, or deployment of malware. This could compromise sensitive customer data and business processes managed within Corebos. The attack requires low privileges to inject malicious content but relies on an administrator opening the CSV file, so social engineering or lack of user awareness could increase risk. The impact is particularly critical in sectors where Corebos is used to manage sensitive or regulated data, such as finance, healthcare, or government agencies in Europe. Additionally, the vulnerability could facilitate supply chain attacks if administrators use shared or networked devices. The absence of a patch increases exposure time, and organizations with limited security awareness or lacking CSV file handling policies are more vulnerable. Overall, this vulnerability could lead to targeted attacks against European organizations relying on Corebos, with potential data breaches and operational disruptions.

To mitigate CVE-2023-48029, organizations should implement multiple layers of defense: 1) Input Validation and Sanitization: Developers should update Corebos to sanitize or escape any user input that may be exported to CSV files, ensuring that fields starting with characters like '=', '+', '-', or '@' are neutralized or prefixed with a single quote to prevent formula execution. 2) User Awareness and Training: Administrators should be trained to recognize the risks of opening CSV files from untrusted or internal sources and to use spreadsheet software settings that disable automatic formula execution or enable 'safe mode' for CSV imports. 3) Use Alternative Export Formats: Where possible, export data in formats that do not support formula execution, such as plain text or JSON, or use CSV viewers that do not interpret formulas. 4) Restrict Low-Privilege User Input: Limit the ability of low-privileged users to input data that will be included in CSV exports, or implement review processes before data export. 5) Network and Endpoint Security: Employ endpoint protection solutions that can detect suspicious script execution and monitor for unusual administrator workstation activity. 6) Monitor for Updates: Stay alert for official patches or updates from Corebos and apply them promptly once available. 7) Implement CSV File Handling Policies: Establish organizational policies to control how exported CSV files are handled, shared, and opened, minimizing exposure to malicious payloads.