CVE-2025-22454: Ivanti Secure Access Client Privilege Escalation

CVE-2025-22454 Overview

CVE-2025-22454 is a local privilege escalation vulnerability affecting Ivanti Secure Access Client versions prior to 22.7R4. The vulnerability stems from insufficiently restrictive permissions that allow a local authenticated attacker to escalate their privileges on the affected system. This vulnerability is classified under CWE-732 (Incorrect Permission Assignment for Critical Resource).

Critical Impact

A local authenticated attacker can leverage insecure permissions in Ivanti Secure Access Client to escalate privileges, potentially gaining full system control over endpoints running the vulnerable VPN client software.

Affected Products

• Ivanti Secure Access Client versions prior to 22.7R4
• Ivanti Secure Access Client 22.7 (base version)
• Ivanti Secure Access Client 22.7R1, 22.7R1.1, 22.7R2, and 22.7R3

Discovery Timeline

• March 11, 2025 - CVE-2025-22454 published to NVD
• July 16, 2025 - Last updated in NVD database

Technical Details for CVE-2025-22454

Vulnerability Analysis

This vulnerability exists due to incorrect permission assignment for critical resources within the Ivanti Secure Access Client application. The flaw allows local users with limited privileges to manipulate or access resources that should be protected, enabling them to elevate their access rights on the system.

The attack requires local access to the target system and valid user credentials, meaning an attacker must already have some level of access to the machine. However, once local access is obtained, the exploitation path requires no user interaction and can be executed with low complexity.

The impact of successful exploitation is severe, affecting confidentiality, integrity, and availability of the compromised system. An attacker could potentially access sensitive VPN credentials, modify client configurations, or gain administrative control over the endpoint.

Root Cause

The root cause of CVE-2025-22454 is improper permission assignment (CWE-732) within the Ivanti Secure Access Client installation. Critical resources such as configuration files, executables, or service components are configured with overly permissive access controls. This allows standard users to modify files or interact with components that should only be accessible to administrators or the SYSTEM account.

Attack Vector

The attack vector is local, requiring the attacker to have authenticated access to the target system. The exploitation scenario involves:

1. An attacker gains initial access to a system with Ivanti Secure Access Client installed (through legitimate credentials, social engineering, or another vulnerability)
2. The attacker identifies resources with insecure permissions within the client installation
3. By manipulating these resources, the attacker can escalate privileges to gain elevated access on the system

Due to the local attack vector requirement, this vulnerability is most concerning in enterprise environments where multiple users share systems or where insider threats are a consideration. The vulnerability can also be chained with other remote access vectors to achieve full system compromise.

Detection Methods for CVE-2025-22454

Indicators of Compromise

• Unexpected modifications to Ivanti Secure Access Client installation directories or configuration files
• Privilege escalation attempts originating from VPN client processes
• Anomalous service behavior or unauthorized service creation associated with the Ivanti client
• Unauthorized changes to file or folder permissions within the client installation path

Detection Strategies

• Monitor Windows Security Event Logs for privilege escalation events (Event IDs 4672, 4673, 4674)
• Implement file integrity monitoring on Ivanti Secure Access Client installation directories
• Track permission changes on critical system resources using auditing policies
• Deploy endpoint detection solutions capable of identifying privilege escalation behavior chains

Monitoring Recommendations

• Enable detailed auditing on Ivanti Secure Access Client installation folders and registry keys
• Configure SIEM rules to alert on unexpected privilege elevation from standard user accounts
• Establish baseline behavior for VPN client processes and alert on deviations
• Review access control lists on client components regularly for unauthorized changes

How to Mitigate CVE-2025-22454

Immediate Actions Required

• Upgrade Ivanti Secure Access Client to version 22.7R4 or later immediately
• Audit current file and folder permissions on existing client installations
• Review user accounts with local access to systems running vulnerable versions
• Implement principle of least privilege for user accounts on affected endpoints

Patch Information

Ivanti has released version 22.7R4 of the Secure Access Client which addresses this vulnerability. Organizations should prioritize upgrading all instances of the Ivanti Secure Access Client to this version or later. Detailed patch information and download links are available in the Ivanti Security Advisory for March 2025.

Workarounds

• Restrict local user access on systems with Ivanti Secure Access Client until patching is complete
• Implement application whitelisting to prevent unauthorized executables from running in the context of the VPN client
• Apply strict access control policies on the Ivanti client installation directory to limit write access to administrators only
• Consider network segmentation to limit lateral movement potential from compromised endpoints