CVE-2024-23535 is a path traversal vulnerability identified in the web component of Ivanti Avalanche, a widely used endpoint management and software distribution platform. The flaw exists in versions prior to 6.4.3 and allows a remote attacker who has valid authentication credentials to exploit improper input validation of file paths. By manipulating file path parameters, the attacker can traverse directories outside the intended scope, leading to arbitrary command execution with SYSTEM-level privileges on the host machine. This level of access enables complete control over the affected system, including the ability to install malware, exfiltrate sensitive data, or disrupt operations. The vulnerability is categorized under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory). The CVSS v3.0 score of 8.8 reflects the vulnerability’s high impact on confidentiality, integrity, and availability, with low attack complexity and no user interaction required. Although no public exploits have been reported yet, the presence of authentication requirements somewhat limits exposure but does not eliminate risk, especially in environments where credential compromise is possible. Ivanti Avalanche is commonly deployed in enterprise environments for managing large fleets of devices, making this vulnerability particularly concerning for organizations relying on it for critical endpoint management tasks.

For European organizations, the impact of CVE-2024-23535 can be severe. Successful exploitation grants attackers SYSTEM-level access, allowing them to fully control affected endpoints or servers running Ivanti Avalanche. This can lead to unauthorized data access, disruption of endpoint management operations, deployment of ransomware or other malware, and lateral movement within corporate networks. Given Ivanti Avalanche’s role in software distribution and patch management, attackers could leverage this vulnerability to distribute malicious updates or disable security controls, amplifying the damage. Organizations in sectors such as finance, healthcare, manufacturing, and critical infrastructure are particularly at risk due to the sensitive nature of their data and operational dependencies on endpoint management systems. The requirement for authentication reduces the attack surface but does not eliminate risk, especially if credentials are weak, reused, or compromised through phishing or insider threats. The lack of known exploits in the wild provides a window for proactive mitigation, but the high severity score demands urgent attention.

1. Immediately upgrade Ivanti Avalanche to version 6.4.3 or later, where the vulnerability is patched. 2. Restrict access to the Avalanche web interface using network segmentation, VPNs, or IP whitelisting to limit exposure to trusted users only. 3. Enforce strong authentication mechanisms, including multi-factor authentication (MFA), to reduce the risk of credential compromise. 4. Regularly audit and monitor authentication logs and system activity for signs of unauthorized access or suspicious behavior. 5. Implement strict input validation and web application firewall (WAF) rules to detect and block path traversal attempts if possible. 6. Educate administrators and users on phishing and credential security best practices to prevent unauthorized access. 7. Maintain up-to-date backups and incident response plans to quickly recover in case of compromise. 8. Coordinate with Ivanti support and subscribe to security advisories for timely updates on emerging threats and patches.