CVE-2024-13972

related · related Intercept X for Windows

A high-severity vulnerability has been identified in the updater component for multiple "related" products, including Intercept X for Windows.

Executive summary

A high-severity vulnerability has been identified in the updater component for multiple "related" products, including Intercept X for Windows. The flaw is due to improper registry permissions, which could allow a local attacker who already has low-level access to a workstation to elevate their privileges and gain full control of the system. This effectively bypasses the endpoint's security controls and could lead to a complete system compromise.

Vulnerability

The vulnerability exists due to insecurely configured permissions on Windows registry keys utilized by the Intercept X updater service. A low-privileged local user can modify these specific registry keys to point to a malicious executable. When the updater service, which runs with high-level (SYSTEM) privileges, executes its update cycle, it will read the compromised registry path and launch the attacker's malicious payload with those same elevated permissions, resulting in a Local Privilege Escalation (LPE).

Business impact

This vulnerability presents a significant risk to the organization, reflected by its High severity rating and CVSS score of 8.8. Successful exploitation would grant an attacker complete administrative control over any affected endpoint. This could lead to the theft or destruction of sensitive data, deployment of ransomware, disabling of all security controls, and using the compromised machine as a pivot point to move laterally across the network. Because the vulnerability exists within a core security product, its exploitation fundamentally undermines the organization's endpoint defense strategy.

Remediation

Immediate Action: All system administrators should immediately deploy the security updates provided by the vendor to patch the updater to version 2024 or later. After patching, verify that the update was successfully applied across all Windows endpoints.

Proactive Monitoring: Security teams should actively monitor for signs of attempted exploitation. This includes monitoring for unauthorized or anomalous modifications to registry keys associated with the Intercept X updater service. Utilize EDR or Sysmon (Event ID 12, 13) to audit for these changes. Furthermore, monitor for suspicious child processes being spawned by the updater process (e.g., cmd.exe, powershell.exe, or unsigned executables running from temporary directories).

Compensating Controls: If immediate patching is not feasible, organizations should implement compensating controls as a temporary measure. This includes using an EDR or similar tool to create detection and blocking rules for suspicious modifications to the affected registry keys. Enforcing the principle of least privilege for all user accounts can also help limit the initial access required to attempt exploitation of this vulnerability.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Given the high-severity CVSS score and the critical nature of the affected software (an endpoint security agent), this vulnerability must be addressed with high priority. A flaw in a security product represents a fundamental failure in a layer of defense and can be leveraged by attackers to achieve full persistence and control. We strongly recommend that organizations prioritize the immediate testing and deployment of the vendor-supplied patch across all managed Windows endpoints to mitigate the risk of a full system compromise.