CVE-2024-22058
📋 TL;DR
This vulnerability allows a low-privilege local user with the Ivanti EPM Agent installed to exploit a buffer overflow and execute arbitrary code with elevated system permissions. It affects Ivanti Endpoint Manager (EPM) 2021.1 and older versions. Attackers can escalate privileges from a standard user account to SYSTEM/administrator level.
💻 Affected Systems
- Ivanti Endpoint Manager (EPM)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with SYSTEM/administrator privileges, enabling installation of persistent malware, credential theft, lateral movement across the network, and complete control of affected endpoints.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install additional malicious software, access sensitive data, and maintain persistence on compromised systems.
If Mitigated
Limited impact if proper endpoint security controls detect buffer overflow attempts or privilege escalation behaviors, though successful exploitation still grants elevated access.
🎯 Exploit Status
Exploitation requires local access with low privileges. The buffer overflow (CWE-122) suggests relatively straightforward exploitation once the vulnerability details are understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Ivanti EPM 2021.2 and newer
Vendor Advisory: https://forums.ivanti.com/s/article/CVE-2024-22058-Privilege-Escalation-for-Ivanti-Endpoint-Manager-EPM
Restart Required: Yes
Instructions:
1. Download Ivanti EPM 2021.2 or newer from the Ivanti portal. 2. Deploy the update to all affected endpoints. 3. Restart systems to complete the installation. 4. Verify the agent version is updated to 2021.2 or later.
🔧 Temporary Workarounds
Restrict local user access
windowsLimit local user accounts on systems with Ivanti EPM Agent to only trusted administrators
Implement application control
windowsUse application whitelisting to prevent execution of unauthorized binaries that might be used in exploitation
🧯 If You Can't Patch
- Remove Ivanti EPM Agent from systems where it's not essential
- Implement strict endpoint detection and response (EDR) rules to monitor for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check the Ivanti EPM Agent version. If it's 2021.1 or older, the system is vulnerable.Check Version:
Check the agent version in the Ivanti EPM console or look at the agent installation directory properties.Verify Fix Applied:
Verify the Ivanti EPM Agent version is 2021.2 or newer. Check that the agent service is running properly.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation with SYSTEM privileges from user accounts
- Buffer overflow exceptions in application logs
- Failed privilege escalation attempts
Network Indicators:
- Unusual outbound connections from systems after local user activity
- Lateral movement attempts from recently compromised systems
SIEM Query:
EventID=4688 AND NewProcessName contains 'cmd.exe' OR 'powershell.exe' AND SubjectUserName NOT IN (admin_users) AND TokenElevationType=2