CVE-2024-55063 is a high-severity remote code injection vulnerability affecting EasyVirt DC NetScope versions up to and including 8.7.0. The vulnerability arises from improper input validation and sanitization of several HTTP parameters used in the web interface of the product. Specifically, the parameters 'lang' in the /international/keyboard/options endpoint, 'keyboard_layout' and 'keyboard_variant' in the /international/settings/keyboard endpoint, and 'timezone' in the /international/settings/timezone endpoint are vulnerable. An authenticated attacker with at least low privileges (PR:L) can exploit these injection points to execute arbitrary code on the underlying system without requiring user interaction. The CVSS 3.1 base score of 8.8 reflects the critical nature of this vulnerability, with network attack vector (AV:N), low attack complexity (AC:L), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). The vulnerability corresponds to CWE-77, which relates to improper neutralization of special elements used in a command ('Command Injection'). Although no known exploits are reported in the wild yet, the ease of exploitation combined with the high impact makes this a significant threat. The lack of available patches at the time of publication increases the urgency for mitigation. The vulnerability allows attackers to gain control over the affected system remotely, potentially leading to data breaches, system compromise, lateral movement within networks, and disruption of services.

For European organizations using EasyVirt DC NetScope, this vulnerability poses a substantial risk. Given the high impact on confidentiality, integrity, and availability, exploitation could lead to unauthorized access to sensitive data, manipulation or destruction of critical information, and operational downtime. Organizations in sectors such as finance, healthcare, government, and critical infrastructure, which often rely on virtualization and network monitoring tools like EasyVirt DC NetScope, could face severe consequences including regulatory penalties under GDPR for data breaches. The remote code execution capability means attackers could establish persistent footholds, escalate privileges, and move laterally within corporate networks, increasing the scope of compromise. The requirement for authentication reduces the attack surface somewhat but does not eliminate risk, especially if credential theft or phishing is successful. The absence of known exploits currently provides a window for proactive defense, but the high severity score indicates that exploitation is feasible and impactful once exploits become available.

European organizations should immediately audit their environments to identify deployments of EasyVirt DC NetScope, particularly versions up to 8.7.0. Until official patches are released, organizations should implement strict access controls to limit who can authenticate to the vulnerable endpoints, including enforcing strong, unique passwords and multi-factor authentication (MFA) for all users with access. Network segmentation should be employed to isolate management interfaces from general user networks and the internet. Monitoring and logging of access to the affected endpoints should be enhanced to detect suspicious activities indicative of exploitation attempts. Input validation and web application firewalls (WAFs) could be configured to block or sanitize suspicious parameter values targeting the vulnerable endpoints. Additionally, organizations should prepare for rapid deployment of patches once available and consider temporary compensating controls such as disabling or restricting access to the vulnerable web interface components if feasible. Employee awareness training on credential security and phishing prevention will further reduce the risk of attackers gaining the necessary authentication.