CVE-2024-24995 is a race condition vulnerability classified under CWE-367, affecting the web component of Ivanti Avalanche prior to version 6.4.3. The flaw is a time-of-check to time-of-use (TOCTOU) race condition that allows a remote attacker with valid authentication credentials to execute arbitrary commands on the underlying system with SYSTEM privileges. This vulnerability arises because the application improperly handles concurrent access to critical resources, allowing an attacker to exploit the timing window between security checks and the actual use of resources. Exploitation does not require user interaction but does require the attacker to authenticate to the web interface, which may be possible through credential compromise or insider threat. The CVSS v3.0 base score of 8.8 reflects the high impact on confidentiality, integrity, and availability, combined with low attack complexity and no user interaction. Ivanti Avalanche is a widely used endpoint management and patch deployment platform, making this vulnerability particularly dangerous as it could allow attackers to gain full control over managed endpoints and the management server itself. Although no public exploits are known at this time, the vulnerability's nature and impact make it a critical concern for organizations using affected versions. The vendor has released version 6.4.3 to address this issue, though no direct patch links were provided in the source information.

For European organizations, the impact of CVE-2024-24995 is significant due to the critical role Ivanti Avalanche plays in endpoint management, software deployment, and patching. Successful exploitation could lead to complete system compromise, allowing attackers to execute arbitrary commands as SYSTEM, potentially leading to data breaches, disruption of IT operations, and lateral movement within networks. This could affect confidentiality by exposing sensitive data, integrity by allowing unauthorized changes to systems and software, and availability by enabling denial-of-service conditions or destruction of critical infrastructure. Organizations in sectors such as finance, healthcare, government, and critical infrastructure, which heavily rely on endpoint management tools, are at heightened risk. The requirement for authentication reduces the attack surface but does not eliminate risk, especially where credential theft or insider threats exist. The absence of known exploits in the wild provides a window for proactive defense, but the high severity necessitates urgent remediation.

1. Immediately upgrade Ivanti Avalanche to version 6.4.3 or later, which contains the fix for this race condition vulnerability. 2. Restrict access to the Ivanti Avalanche web interface using network segmentation, VPNs, or IP whitelisting to limit exposure to authenticated users only. 3. Enforce strong authentication mechanisms, including multi-factor authentication (MFA), to reduce the risk of credential compromise. 4. Monitor logs and system activity for unusual command execution patterns or privilege escalation attempts on the Avalanche server and managed endpoints. 5. Conduct regular audits of user accounts and permissions within Ivanti Avalanche to ensure that only authorized personnel have access. 6. Implement endpoint detection and response (EDR) solutions to detect and respond to suspicious activities resulting from potential exploitation. 7. Educate administrators and users about phishing and credential theft risks to prevent unauthorized access. 8. Maintain up-to-date backups of critical systems managed by Avalanche to enable recovery in case of compromise.