CVE-2024-11482
📋 TL;DR
This critical vulnerability in ESM 11.6.10 allows unauthenticated attackers to access the internal Snowservice API and execute arbitrary commands as root through command injection. Any organization running the vulnerable version is affected, potentially leading to complete system compromise.
💻 Affected Systems
- McAfee Enterprise Security Manager (ESM)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with root privileges, data exfiltration, lateral movement across the network, and persistent backdoor installation.
Likely Case
Remote code execution leading to data theft, ransomware deployment, or cryptocurrency mining operations.
If Mitigated
Limited impact if network segmentation and strict access controls prevent external access to vulnerable systems.
🎯 Exploit Status
The HackerOne report includes technical details that could facilitate exploitation. The CVSS 9.8 score indicates trivial exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 11.6.11 or later
Vendor Advisory: https://thrive.trellix.com/s/article/000014058
Restart Required: Yes
Instructions:
1. Download ESM 11.6.11 or later from the McAfee support portal. 2. Backup current configuration. 3. Apply the update following vendor instructions. 4. Restart the ESM service.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to ESM management interfaces to trusted IP addresses only.
Use firewall rules to limit access to ESM ports (default 8443) to authorized management networks
Service Disablement
linuxTemporarily disable Snowservice API if not required for operations.
systemctl stop snowservice
systemctl disable snowservice
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ESM systems from untrusted networks
- Deploy web application firewall (WAF) rules to block command injection patterns targeting the Snowservice API
🔍 How to Verify
Check if Vulnerable:
Check ESM version via admin console or run: grep 'version' /opt/McAfee/ESM/etc/version.txtCheck Version:
cat /opt/McAfee/ESM/etc/version.txtVerify Fix Applied:
Verify version is 11.6.11 or later and test that Snowservice API no longer accepts unauthenticated requests.📡 Detection & Monitoring
Log Indicators:
- Unusual Snowservice API access from unexpected IPs
- Command execution patterns in ESM logs
- Failed authentication attempts followed by successful API calls
Network Indicators:
- Unusual outbound connections from ESM server
- Traffic to Snowservice API port (default 8443) from unauthorized sources
SIEM Query:
source="ESM" AND ("Snowservice" OR "command injection" OR "unauthorized API access")